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      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-1CT</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-solution-giordano-ph-64-m15-for-wright-staining-1450-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Buffer, Reference Standard, pH 3.00 ± 0.01 at 25°C - 1495-1CT</image:title>
      <image:caption>Buffer, Reference Standard, pH 3.00 ± 0.01 at 25°C - 1495-1CT</image:caption>
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    <loc>https://labproinc2.myshopify.com/products/buffer-solution-giordano-ph-64-m15-for-wright-staining-1450-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C - 1500-5</image:title>
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      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-32</image:title>
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      <image:title>Buffer Solution, for Water Hardness, ASTM Formulation - 1472-32</image:title>
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      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C - 1500-32</image:title>
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      <image:title>Buffer Concentrate, 5x, pH 4.00 ± 0.01 at 25°C (Color Coded Red) To be diluted with 4 parts Water before use - R1500510-20F</image:title>
      <image:caption>Buffer Concentrate, 5x, pH 4.00 ± 0.01 at 25°C (Color Coded Red) To be diluted with 4 parts Water before use - R1500510-20F</image:caption>
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      <image:title>Buffer Concentrate, 5x, pH 4.00 ± 0.01 at 25°C To be diluted with 4 parts Water before use - 1500.5-2.5</image:title>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-32</image:caption>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_80c339b8-9d71-4af5-a086-7b2418c581ed.png?v=1776328786</image:loc>
      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C - 1500-1CT</image:title>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_0402bceb-60ec-49a7-b1c2-045382ee1c69.png?v=1776328782</image:loc>
      <image:title>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-2.5</image:caption>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C - 1500-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C - 1500-1</image:caption>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_56a73bd3-5802-4191-8606-c821680466e2.png?v=1776328785</image:loc>
      <image:title>Buffer, Precision Reference Standard, pH 10.000 ± 0.005 at 25°C - 1602-20</image:title>
      <image:caption>Buffer, Precision Reference Standard, pH 10.000 ± 0.005 at 25°C - 1602-20</image:caption>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Buffer, Precision Reference Standard, pH 10.000 ± 0.005 at 25°C - 1602-16</image:title>
      <image:caption>Buffer, Precision Reference Standard, pH 10.000 ± 0.005 at 25°C - 1602-16</image:caption>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Britton-Robinson Buffer, pH 6.09, adjusted to 0.5 M Ionic Strength - 1156.61-16</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/wash-buffer-concentrate-ph-72-1562-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Wash Buffer Concentrate, pH 7.2 - 1562-32</image:title>
      <image:caption>Wash Buffer Concentrate, pH 7.2 - 1562-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-concentrate-5x-ph-700-001-at-25c-color-coded-yellow-to-be-diluted-with-4-parts-water-before-use-r1550510-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_7394cda7-744f-43f5-9fb7-1b0db1aa679d.png?v=1776328786</image:loc>
      <image:title>Buffer Concentrate, 5x, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) To be diluted with 4 parts Water before use - R1550510-20F</image:title>
      <image:caption>Buffer Concentrate, 5x, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) To be diluted with 4 parts Water before use - R1550510-20F</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-solution-for-nitrate-determination-using-ion-selective-electrode-1473-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_57413c4c-1eb1-42b7-8cc5-e483cc01742f.png?v=1776328785</image:loc>
      <image:title>Buffer Solution, for Nitrate Determination using Ion Selective Electrode - 1473-16</image:title>
      <image:caption>Buffer Solution, for Nitrate Determination using Ion Selective Electrode - 1473-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1000-001-at-25c-color-coded-blue-1601-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_d206e630-dfbc-4901-b548-7b0c71b94bd7.png?v=1776328786</image:loc>
      <image:title>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C (Color Coded Blue) - 1601-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C (Color Coded Blue) - 1601-1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-400-001-at-25c-color-coded-red-1501-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-5</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-580-usp-reagent-phthalate-buffer-r1498580-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Buffer, pH 5.80, USP reagent (Phthalate Buffer) - R1498580-1A</image:title>
      <image:caption>Buffer, pH 5.80, USP reagent (Phthalate Buffer) - R1498580-1A</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/bromothymol-blue-ts-01-wv-in-50-vv-alcohol-1378-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Bromothymol Blue TS, 0.1% (w/v) in 50% (v/v) Alcohol - 1378-4</image:title>
      <image:caption>Bromothymol Blue TS, 0.1% (w/v) in 50% (v/v) Alcohol - 1378-4</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-500-001-at-25c-1505-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_f0c0a010-df67-4973-95a8-9b532228beef.png?v=1776328785</image:loc>
      <image:title>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-yellow-1551-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_605f834c-f804-4172-8576-828e4cbedc2b.png?v=1776328788</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-738-001-at-25c-1563-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_385f9ea7-cf4d-4bf9-88a8-8fbdcca9e830.png?v=1776328785</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.38 ± 0.01 at 25°C - 1563-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.38 ± 0.01 at 25°C - 1563-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1100-001-at-25c-1610-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a4607ca3-0758-4755-880a-d570b7a19c67.png?v=1776328789</image:loc>
      <image:title>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1100-001-at-25c-1610-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_b78233f8-630d-409b-aeb5-ee37c8f387dc.png?v=1776328784</image:loc>
      <image:title>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-356-001-at-25c-1498-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_ef72d147-8faa-4653-8577-0dc7d6112b40.png?v=1776328790</image:loc>
      <image:title>Buffer, Reference Standard, pH 3.56 ± 0.01 at 25°C - 1498-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 3.56 ± 0.01 at 25°C - 1498-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-concentrate-5x-ph-700-001-at-25c-color-coded-yellow-to-be-diluted-with-4-parts-water-before-use-r1550510-10f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_394b7be2-35fe-44e6-85d6-9e60eafa481b.png?v=1776328785</image:loc>
      <image:title>Buffer Concentrate, 5x, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) To be diluted with 4 parts Water before use - R1550510-10F</image:title>
      <image:caption>Buffer Concentrate, 5x, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) To be diluted with 4 parts Water before use - R1550510-10F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-yellow-1551-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_ef01a2b0-dc11-45a3-95d7-9acf468e1dde.png?v=1776328787</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-precision-reference-standard-ph-7000-0002-at-25c-color-coded-yellow-1552-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_fd8647f5-7c15-4770-9133-a38387fb1e2a.png?v=1776328787</image:loc>
      <image:title>Buffer, Precision Reference Standard, pH 7.000 ± 0.002 at 25°C (Color Coded Yellow) - 1552-16</image:title>
      <image:caption>Buffer, Precision Reference Standard, pH 7.000 ± 0.002 at 25°C (Color Coded Yellow) - 1552-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-600-001-at-25c-1510-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_008e2afb-1c00-449e-a22c-faeb296e01e6.png?v=1776328789</image:loc>
      <image:title>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-738-001-at-25c-1563-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_1182be97-dc76-48ff-b77d-ef5828b9cdb4.png?v=1776328789</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.38 ± 0.01 at 25°C - 1563-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.38 ± 0.01 at 25°C - 1563-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-400-001-at-25c-color-coded-red-1501-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_7e67c635-0c29-4dbf-86a9-379bc804230f.png?v=1776328792</image:loc>
      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-500-001-at-25c-1505-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_a8208fb9-31a9-48cc-85f8-eda4b8bad25a.png?v=1776328790</image:loc>
      <image:title>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-400-001-at-25c-color-coded-red-1501-20</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_77e28bc0-2623-4238-8bb3-4ba24bd0e159.png?v=1776328787</image:loc>
      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-20</image:title>
      <image:caption>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-20</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-738-001-at-25c-1563-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_a70ec02c-d23f-44c8-916b-761f71dcbe17.png?v=1776328787</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.38 ± 0.01 at 25°C - 1563-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.38 ± 0.01 at 25°C - 1563-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-yellow-1551-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_b26571ee-9a1a-40dc-8fdc-ec317d3abf97.png?v=1776328787</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1000-001-at-25c-color-coded-blue-1601-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_8359de9c-245d-44f6-bec6-cb74d29867b0.png?v=1776328790</image:loc>
      <image:title>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C (Color Coded Blue) - 1601-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C (Color Coded Blue) - 1601-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1200-001-at-25c-1615-20</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_653c819c-aa6c-464a-be1b-a2aae73bbb83.png?v=1776328792</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-20</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-20</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-445-001-at-25-c-15024-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_85a6bfa8-ddb4-4e0e-a1e3-d742f5c11ad7.png?v=1776328790</image:loc>
      <image:title>Buffer, Reference Standard, pH 4.45 ± 0.01 at 25 °C - 1502.4-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 4.45 ± 0.01 at 25 °C - 1502.4-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-1550-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_e16f5099-7394-43cf-b1a2-c5042fa6ca6f.png?v=1776328789</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C - 1550-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C - 1550-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-solution-for-nitrate-determination-using-ion-selective-electrode-1473-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_056af92d-20e4-4d42-847b-1616ac58c12f.png?v=1776328791</image:loc>
      <image:title>Buffer Solution, for Nitrate Determination using Ion Selective Electrode - 1473-32</image:title>
      <image:caption>Buffer Solution, for Nitrate Determination using Ion Selective Electrode - 1473-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1100-001-at-25c-1610-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_54411fe3-756d-4972-ae56-98d0017f307b.png?v=1776328790</image:loc>
      <image:title>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-green-15514-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_2361d0e4-2063-4c5c-8e72-67d6b69a05a5.png?v=1776328791</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-green-15514-55</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-55e_6a6d9352-2590-479e-84b7-01c856a0716a.png?v=1776328792</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-55</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-55</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-740-001-at-25c-1565-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_3165b1bd-e71d-4ec7-bdee-818c8cf6452c.png?v=1776328792</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.40 ± 0.01 at 25°C - 1565-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.40 ± 0.01 at 25°C - 1565-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1188-001-at-25-c-1614-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9463287d-7a3a-421e-824f-2838f5e27b8f.png?v=1776328792</image:loc>
      <image:title>Buffer, Reference Standard, pH 11.88 ± 0.01 at 25 °C - 1614-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 11.88 ± 0.01 at 25 °C - 1614-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-yellow-1551-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_b8854b46-1c51-47d5-a469-768765b71ca7.png?v=1776328790</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-400-001-at-25c-color-coded-red-1501-20b</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a7f3e077-b7eb-4d3a-b4b1-4b9f4d470486.png?v=1776328791</image:loc>
      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-20B</image:title>
      <image:caption>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-20B</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-green-15514-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_83cf6777-132d-4752-b7c6-a1d6114686b5.png?v=1776328789</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-580-001-at-25c-r1509000-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_f408880c-b56b-4bd5-aa6d-40a71b8cf443.png?v=1776328794</image:loc>
      <image:title>Buffer, Reference Standard, pH 5.80 ± 0.01 at 25°C - R1509000-20F</image:title>
      <image:caption>Buffer, Reference Standard, pH 5.80 ± 0.01 at 25°C - R1509000-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-400-001-at-25c-color-coded-red-1501-1ct</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_7bee3b62-f594-49b5-874e-33fcda91d268.png?v=1776328791</image:loc>
      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-1CT</image:title>
      <image:caption>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C (Color Coded Red) - 1501-1CT</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-concentrate-5x-ph-400-001-at-25c-to-be-diluted-with-4-parts-water-before-use-15005-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_c271917c-739e-445c-8a85-46be08a904e0.png?v=1776328792</image:loc>
      <image:title>Buffer Concentrate, 5x, pH 4.00 ± 0.01 at 25°C To be diluted with 4 parts Water before use - 1500.5-16</image:title>
      <image:caption>Buffer Concentrate, 5x, pH 4.00 ± 0.01 at 25°C To be diluted with 4 parts Water before use - 1500.5-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-green-15514-1ct</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_859848a6-a689-40cd-b357-4221969a9f4e.png?v=1776328792</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-1CT</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-1CT</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-500-ppm-c-18455-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_e115a3c1-9690-4f82-9025-614d3ee1ba4a.png?v=1776328795</image:loc>
      <image:title>Inorganic Carbon Standard, 500 ppm C - 1845.5-32</image:title>
      <image:caption>Inorganic Carbon Standard, 500 ppm C - 1845.5-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-740-005-m-tris-015-m-nacl-r1566000-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_2c4568a0-8501-4fce-8a03-a43805d5f593.png?v=1776328790</image:loc>
      <image:title>Buffer, pH 7.40, 0.05 M TRIS / 0.15 M NaCl - R1566000-500A</image:title>
      <image:caption>Buffer, pH 7.40, 0.05 M TRIS / 0.15 M NaCl - R1566000-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1100-001-at-25c-1610-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_4519bbff-f0c0-41fc-a802-bb19cb8fb305.png?v=1776328794</image:loc>
      <image:title>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-green-15514-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_64be556d-36b6-485d-89cc-44006e5ed04e.png?v=1776328795</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Green) - 1551.4-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1200-001-at-25c-1615-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_50a5267a-d3ca-4b7c-acc7-e5eac645e28b.png?v=1776328794</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1200-001-at-25c-1615-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_b2d1eb2a-d3e9-42de-b3d0-4e266b180a5a.png?v=1776328794</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1200-001-at-25c-1615-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b3e47bb7-a95c-40d8-b4ff-bf7a002c4ecb.png?v=1776328794</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-1000-ppm-c-1845-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120c_6def3f09-da98-4a9e-a5ba-cd7dcfcfe95e.png?v=1776328796</image:loc>
      <image:title>Inorganic Carbon Standard, 1000 ppm C - 1845-4</image:title>
      <image:caption>Inorganic Carbon Standard, 1000 ppm C - 1845-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-740-001-at-25c-1565-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_4befaa8a-bf13-4fce-92f9-b5f8ccdcdd73.png?v=1776328794</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.40 ± 0.01 at 25°C - 1565-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.40 ± 0.01 at 25°C - 1565-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-tris-100-mm-ph-78-r1566300-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_da0cd865-ebca-4735-bdd8-f861c90a01de.png?v=1776328795</image:loc>
      <image:title>Buffer, TRIS, 100 mM, pH 7.8 - R1566300-500A</image:title>
      <image:caption>Buffer, TRIS, 100 mM, pH 7.8 - R1566300-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1245-001-at-25c-1618-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c7b0cba2-d77c-4bdc-a749-f4cfcca38451.png?v=1776328798</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.45 ± 0.01 at 25°C - 1618-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.45 ± 0.01 at 25°C - 1618-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-solution-for-water-hardness-astm-formulation-1472-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_00f5ba04-7592-47e2-a7a4-588c0776bcb4.png?v=1776328795</image:loc>
      <image:title>Buffer Solution, for Water Hardness, ASTM Formulation - 1472-16</image:title>
      <image:caption>Buffer Solution, for Water Hardness, ASTM Formulation - 1472-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-400-001-at-25c-without-preservative-r1500020-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_1e9a4281-64ed-47f8-85b1-0224d49f2b4e.png?v=1776328795</image:loc>
      <image:title>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C, without preservative - R1500020-500A</image:title>
      <image:caption>Buffer, Reference Standard, pH 4.00 ± 0.01 at 25°C, without preservative - R1500020-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1200-001-at-25c-1615-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_371d8109-eae9-46a2-8c35-2471270f810c.png?v=1776328797</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-500-001-at-25c-color-coded-green-r15055g0-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_7a807958-5cb5-425c-b163-56381d27b367.png?v=1776328802</image:loc>
      <image:title>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C (Color Coded Green) - R15055G0-4A</image:title>
      <image:caption>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C (Color Coded Green) - R15055G0-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-yellow-1551-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_8814f0a4-87e7-41ed-a748-d431df29980e.png?v=1776328799</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1256-001-at-25c-r1619400-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_5e196691-fe5a-46d6-8723-d787fc7b3e27.png?v=1776328796</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.56 ± 0.01 at 25°C - R1619400-4A</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.56 ± 0.01 at 25°C - R1619400-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1272-001-at-25c-r1620000-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_0a1ab31c-91e9-4833-a64e-8e4a80996fa0.png?v=1776328797</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.72 ± 0.01 at 25°C - R1620000-500A</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.72 ± 0.01 at 25°C - R1620000-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-500-usp-reagent-neutralized-phthalate-buffer-r1505200-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_e78aeccc-45a5-432e-8cea-9fcea11cb701.png?v=1776328797</image:loc>
      <image:title>Buffer, pH 5.00, USP Reagent Neutralized Phthalate Buffer - R1505200-1A</image:title>
      <image:caption>Buffer, pH 5.00, USP Reagent Neutralized Phthalate Buffer - R1505200-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-precision-reference-standard-ph-4000-0002-at-25c-color-coded-red-1502-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_74c1e05c-6722-41f3-9171-8ff678f4c269.png?v=1776328799</image:loc>
      <image:title>Buffer, Precision Reference Standard, pH 4.000 ± 0.002 at 25°C (Color Coded Red) - 1502-16</image:title>
      <image:caption>Buffer, Precision Reference Standard, pH 4.000 ± 0.002 at 25°C (Color Coded Red) - 1502-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-500-001-at-25c-1505-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_90d5e406-e079-428b-bf25-0add639c93cb.png?v=1776328797</image:loc>
      <image:title>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-500-teva-formulation-r1506000-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_4f83adc7-b644-4599-aa9d-6431bd0662c6.png?v=1776328797</image:loc>
      <image:title>Buffer, pH 5.00, Teva formulation - R1506000-4A</image:title>
      <image:caption>Buffer, pH 5.00, Teva formulation - R1506000-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-740-001-at-25c-1565-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_d65536e9-9cf2-4570-ae04-389f76f8a666.png?v=1776328799</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.40 ± 0.01 at 25°C - 1565-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.40 ± 0.01 at 25°C - 1565-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-450-001-at-25c-r1503000-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_187aaf8a-e3bc-4d31-a3c1-65bcd3884082.png?v=1776328798</image:loc>
      <image:title>Buffer, Reference Standard, pH 4.50 ± 0.01 at 25°C - R1503000-1A</image:title>
      <image:caption>Buffer, Reference Standard, pH 4.50 ± 0.01 at 25°C - R1503000-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-precision-reference-standard-ph-6000-0002-at-25c-1513-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e726c439-dfd5-491c-92a7-a51a81c8f96a.png?v=1776328799</image:loc>
      <image:title>Buffer, Precision Reference Standard, pH 6.000 ± 0.002 at 25°C - 1513-16</image:title>
      <image:caption>Buffer, Precision Reference Standard, pH 6.000 ± 0.002 at 25°C - 1513-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-100-ppm-c-1846-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_4e9309de-8832-4b83-8379-c3b0ae2a3148.png?v=1776328801</image:loc>
      <image:title>Organic Carbon Standard, 100 ppm C - 1846-16</image:title>
      <image:caption>Organic Carbon Standard, 100 ppm C - 1846-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-tris-1-m-ph-72-r1566400-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_d4aec72d-829b-4f06-952a-e255d7c16d6d.png?v=1776328803</image:loc>
      <image:title>Buffer, TRIS, 1 M, pH 7.2 - R1566400-500A</image:title>
      <image:caption>Buffer, TRIS, 1 M, pH 7.2 - R1566400-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-700-001-at-25c-color-coded-yellow-1551-20b</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_004a4406-6075-4f1b-963d-db489c23d6c5.png?v=1776328797</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-20B</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.00 ± 0.01 at 25°C (Color Coded Yellow) - 1551-20B</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-550-001-at-25-c-150-mm-ionic-strength-r1628023-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_001b05c6-b0ea-4b75-a65e-0d5c3e524b3c.png?v=1776328798</image:loc>
      <image:title>Buffer, pH 5.50 ± 0.01 at 25 °C, 150 mM Ionic Strength - R1628023-20F</image:title>
      <image:caption>Buffer, pH 5.50 ± 0.01 at 25 °C, 150 mM Ionic Strength - R1628023-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-solution-ph-35-r-1474-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_7dab5949-829a-47a6-a9f4-bf81b7da6fe9.png?v=1776328797</image:loc>
      <image:title>Buffer Solution, pH 3.5 R - 1474-32</image:title>
      <image:caption>Buffer Solution, pH 3.5 R - 1474-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-500-001-at-25c-1505-20</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c3e0699c-9ffc-4e1d-8784-721dec22be1f.png?v=1776328802</image:loc>
      <image:title>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-20</image:title>
      <image:caption>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-20</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-600-001-at-25c-1510-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_78dbb63b-5961-4c1c-bda6-b35556484f85.png?v=1776328801</image:loc>
      <image:title>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-100-ppm-c-1846-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_bdd83a38-a3f9-4d13-81f8-15ea17e7d69c.png?v=1776328798</image:loc>
      <image:title>Organic Carbon Standard, 100 ppm C - 1846-5</image:title>
      <image:caption>Organic Carbon Standard, 100 ppm C - 1846-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-precision-reference-standard-ph-12450-0003-at-25c-r1618300-500g</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e9aa86c7-e195-42b0-b4e9-7437e56fa742.png?v=1776328803</image:loc>
      <image:title>Buffer, Precision Reference Standard, pH 12.450 ± 0.003 at 25°C - R1618300-500G</image:title>
      <image:caption>Buffer, Precision Reference Standard, pH 12.450 ± 0.003 at 25°C - R1618300-500G</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-740-001-at-25c-1565-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_ef757b9c-7a1e-4033-96a4-9a341a3ce16d.png?v=1776328801</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.40 ± 0.01 at 25°C - 1565-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.40 ± 0.01 at 25°C - 1565-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-25-ppm-c-r1845025-250c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6550d14a-f19e-4994-a203-301b5270a9a6.png?v=1776328801</image:loc>
      <image:title>Inorganic Carbon Standard, 25 ppm C - R1845025-250C</image:title>
      <image:caption>Inorganic Carbon Standard, 25 ppm C - R1845025-250C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1300-001-at-25c-1625-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_814e80a0-4021-485f-b914-c26b2968f27a.png?v=1776328800</image:loc>
      <image:title>Buffer, Reference Standard, pH 13.00 ± 0.01 at 25°C - 1625-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 13.00 ± 0.01 at 25°C - 1625-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1200-001-at-25c-1615-20b</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_70e9698a-2fa1-4176-a20f-daf8df90e295.png?v=1776328802</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-20B</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-20B</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-1000-ppm-c-1845-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_b36d73b0-90c8-409c-8175-b17edb21f062.png?v=1776328800</image:loc>
      <image:title>Inorganic Carbon Standard, 1000 ppm C - 1845-16</image:title>
      <image:caption>Inorganic Carbon Standard, 1000 ppm C - 1845-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-100-ppm-c-1846-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_dc1f721e-ec81-4709-bc3b-67c314b7dde9.png?v=1776328803</image:loc>
      <image:title>Organic Carbon Standard, 100 ppm C - 1846-32</image:title>
      <image:caption>Organic Carbon Standard, 100 ppm C - 1846-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-25-ppm-c-r1845025-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_3bf64166-e394-47a1-be0d-ae3590bab6de.png?v=1776328806</image:loc>
      <image:title>Inorganic Carbon Standard, 25 ppm C - R1845025-500C</image:title>
      <image:caption>Inorganic Carbon Standard, 25 ppm C - R1845025-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-770-001-at-25-c-1576-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_c66fef8f-8fc2-4702-974c-e5f9746cb056.png?v=1776328803</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.70 ± 0.01 at 25 °C - 1576-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.70 ± 0.01 at 25 °C - 1576-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-50-ppm-c-r1845050-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_711756a9-e72f-4549-ad13-3b2e7e5993c0.png?v=1776328800</image:loc>
      <image:title>Inorganic Carbon Standard, 50 ppm C - R1845050-500C</image:title>
      <image:caption>Inorganic Carbon Standard, 50 ppm C - R1845050-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1100-001-at-25c-1610-1ct</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_fea70bc8-5089-4c59-99ad-83829fdd6596.png?v=1776328805</image:loc>
      <image:title>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-1CT</image:title>
      <image:caption>Buffer, Reference Standard, pH 11.00 ± 0.01 at 25°C - 1610-1CT</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-500-001-at-25c-1505-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_e625ff46-80c4-4b0c-bc86-4d1870759bcb.png?v=1776328803</image:loc>
      <image:title>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-300-ppm-c-r1846300-1c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_f38e4902-e1f9-41fd-8f43-57ebc0de73e9.png?v=1776328802</image:loc>
      <image:title>Organic Carbon Standard, 300 ppm C - R1846300-1C</image:title>
      <image:caption>Organic Carbon Standard, 300 ppm C - R1846300-1C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-760-001-at-25-c-r1570600-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_2d5b4729-71f0-4192-839d-42fb6c3069e7.png?v=1776328802</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.60 ± 0.01 at 25 °C - R1570600-1A</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.60 ± 0.01 at 25 °C - R1570600-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-770-001-at-25-c-1576-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_f615d682-dbb7-428a-bc43-85f630294048.png?v=1776328802</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.70 ± 0.01 at 25 °C - 1576-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.70 ± 0.01 at 25 °C - 1576-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-463-001-at-25c-1504-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_611fa60f-938b-4f7a-a209-c3ce0b08e1f2.png?v=1776328804</image:loc>
      <image:title>Buffer, Reference Standard, pH 4.63 ± 0.01 at 25°C - 1504-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 4.63 ± 0.01 at 25°C - 1504-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-300-ppm-c-r1846300-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_5aeea5ac-3662-439e-8aca-edf4a3bbf205.png?v=1776328802</image:loc>
      <image:title>Organic Carbon Standard, 300 ppm C - R1846300-500C</image:title>
      <image:caption>Organic Carbon Standard, 300 ppm C - R1846300-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-850-150-mm-ionic-strength-r1628035-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_97354b0d-e3ce-44b2-9427-4e576976ec57.png?v=1776328805</image:loc>
      <image:title>Buffer, pH 8.50, 150 mM Ionic Strength - R1628035-4A</image:title>
      <image:caption>Buffer, pH 8.50, 150 mM Ionic Strength - R1628035-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-600-001-at-25c-1510-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_cb1c2489-e6e4-4ccf-bfb7-b66e7b034ab0.png?v=1776328806</image:loc>
      <image:title>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-125-ppm-c-r1846125-1c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_68e3b129-7d78-4c67-898c-29516c308250.png?v=1776328805</image:loc>
      <image:title>Organic Carbon Standard, 125 ppm C - R1846125-1C</image:title>
      <image:caption>Organic Carbon Standard, 125 ppm C - R1846125-1C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1200-001-at-25c-1615-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_fe693d3f-d492-4400-a3c0-02f3f0691563.png?v=1776328807</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.00 ± 0.01 at 25°C - 1615-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-600-001-at-25c-1510-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_2dfa95ad-9715-4484-b3b6-60a73042ef5b.png?v=1776328804</image:loc>
      <image:title>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-200-ppm-c-r1846200-250c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1ced1686-9d1d-43ae-87c2-b26f556509ec.png?v=1776328802</image:loc>
      <image:title>Organic Carbon Standard, 200 ppm C - R1846200-250C</image:title>
      <image:caption>Organic Carbon Standard, 200 ppm C - R1846200-250C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-740-005-m-tris-015-m-nacl-r1566000-250a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_1b6d9d1e-7b9f-4a55-837c-bbeb3da65b4d.png?v=1776328803</image:loc>
      <image:title>Buffer, pH 7.40, 0.05 M TRIS / 0.15 M NaCl - R1566000-250A</image:title>
      <image:caption>Buffer, pH 7.40, 0.05 M TRIS / 0.15 M NaCl - R1566000-250A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-1000-ppm-c-1847-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_86246afd-5a1a-4e1a-afef-622ba6fd6ba9.png?v=1776328803</image:loc>
      <image:title>Organic Carbon Standard, 1000 ppm C - 1847-2.5</image:title>
      <image:caption>Organic Carbon Standard, 1000 ppm C - 1847-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tris-buffer-1-molar-ph-750-1630-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_ba7284bf-06b0-4cb3-9abf-051a81b7f2f3.png?v=1776328804</image:loc>
      <image:title>TRIS Buffer, 1 Molar, pH 7.50 - 1630-32</image:title>
      <image:caption>TRIS Buffer, 1 Molar, pH 7.50 - 1630-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1245-001-at-25c-1618-20</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_fd0fada3-8d38-4d15-aade-33165f747bf9.png?v=1776328809</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.45 ± 0.01 at 25°C - 1618-20</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.45 ± 0.01 at 25°C - 1618-20</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1300-001-at-25c-1625-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f16336e5-e5d4-4b3b-91c6-16f27e79e00d.png?v=1776328806</image:loc>
      <image:title>Buffer, Reference Standard, pH 13.00 ± 0.01 at 25°C - 1625-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 13.00 ± 0.01 at 25°C - 1625-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-850-150-mm-ionic-strength-r1628035-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_9b9a74c5-6ed0-46fc-ba3b-20640cf808f9.png?v=1776328804</image:loc>
      <image:title>Buffer, pH 8.50, 150 mM Ionic Strength - R1628035-20F</image:title>
      <image:caption>Buffer, pH 8.50, 150 mM Ionic Strength - R1628035-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-100-ppm-c-r1845100-500c1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_034a8eb6-f409-4fee-a9df-4e7cf6e64fdb.png?v=1776328805</image:loc>
      <image:title>Inorganic Carbon Standard, 100 ppm C - R1845100-500C1</image:title>
      <image:caption>Inorganic Carbon Standard, 100 ppm C - R1845100-500C1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-650-001-at-25c-1530-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_f9805502-6984-4778-9669-a9526dc626eb.png?v=1776328804</image:loc>
      <image:title>Buffer, Reference Standard, pH 6.50 ± 0.01 at 25°C - 1530-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 6.50 ± 0.01 at 25°C - 1530-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-10000-ppm-c-r1845900-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_7831c057-bc1c-4197-a7a7-7b1ddd84e540.png?v=1776328805</image:loc>
      <image:title>Inorganic Carbon Standard, 10,000 ppm C - R1845900-500C</image:title>
      <image:caption>Inorganic Carbon Standard, 10,000 ppm C - R1845900-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1300-001-at-25c-1625-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_b39f9844-7b4f-4c71-8812-a9f1090e1131.png?v=1776328806</image:loc>
      <image:title>Buffer, Reference Standard, pH 13.00 ± 0.01 at 25°C - 1625-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 13.00 ± 0.01 at 25°C - 1625-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1000-001-at-25c-color-coded-blue-1601-1ct</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_78facd6d-01c0-44bf-8560-270422a1d6f4.png?v=1776328803</image:loc>
      <image:title>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C (Color Coded Blue) - 1601-1CT</image:title>
      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C (Color Coded Blue) - 1601-1CT</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-550-001-at-25c-1507-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_81520468-47ca-4ada-9d1b-2fc7aac4e65d.png?v=1776328807</image:loc>
      <image:title>Buffer, Reference Standard, pH 5.50 ± 0.01 at 25°C - 1507-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 5.50 ± 0.01 at 25°C - 1507-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-1000-ppm-c-1847-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_762ee5ea-ac54-43bd-8dd1-9b8c24cff8eb.png?v=1776328809</image:loc>
      <image:title>Organic Carbon Standard, 1000 ppm C - 1847-16</image:title>
      <image:caption>Organic Carbon Standard, 1000 ppm C - 1847-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/t-butyl-alcohol-30-vv-r1650000-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_74516413-3446-42ea-81d0-47ec2eb2c379.png?v=1776328807</image:loc>
      <image:title>t-Butyl Alcohol, 30% (v/v) - R1650000-500A</image:title>
      <image:caption>t-Butyl Alcohol, 30% (v/v) - R1650000-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-100-ppm-c-r1845100-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_08d77015-7175-4bdd-b361-1ab4bf407050.png?v=1776328807</image:loc>
      <image:title>Inorganic Carbon Standard, 100 ppm C - R1845100-500C</image:title>
      <image:caption>Inorganic Carbon Standard, 100 ppm C - R1845100-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-1000-ppm-c-1845-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_78f76e9e-7771-44f1-89f2-6ea63162db72.png?v=1776328806</image:loc>
      <image:title>Inorganic Carbon Standard, 1000 ppm C - 1845-32</image:title>
      <image:caption>Inorganic Carbon Standard, 1000 ppm C - 1845-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-500-ppm-c-18465-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_15ec6328-6d0a-4c58-94e8-90df3864b3f4.png?v=1776328806</image:loc>
      <image:title>Organic Carbon Standard, 500 ppm C - 1846.5-16</image:title>
      <image:caption>Organic Carbon Standard, 500 ppm C - 1846.5-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-800-001-at-25c-1580-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_553be596-bbb5-4a1d-9466-398a0104b7fb.png?v=1776328805</image:loc>
      <image:title>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-500-001-at-25c-1505-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_f40cf53d-e00f-43dc-baa1-b70669f717a5.png?v=1776328806</image:loc>
      <image:title>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 5.00 ± 0.01 at 25°C - 1505-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-700-001-at-25c-150-mm-ionic-strength-r1628029-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_c29e247f-7c03-48ab-81aa-2fe92a4df744.png?v=1776328813</image:loc>
      <image:title>Buffer, pH 7.00 ± 0.01 at 25°C, 150 mM Ionic Strength - R1628029-20F</image:title>
      <image:caption>Buffer, pH 7.00 ± 0.01 at 25°C, 150 mM Ionic Strength - R1628029-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-1000-ppm-c-1847-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_41b81162-dc3c-4f95-afb5-193781a8fec4.png?v=1776328807</image:loc>
      <image:title>Organic Carbon Standard, 1000 ppm C - 1847-32</image:title>
      <image:caption>Organic Carbon Standard, 1000 ppm C - 1847-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/inorganic-carbon-standard-10000-ppm-c-r1845900-250c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_249d8b60-ac04-4b5a-aea7-78efa655aba2.png?v=1776328810</image:loc>
      <image:title>Inorganic Carbon Standard, 10,000 ppm C - R1845900-250C</image:title>
      <image:caption>Inorganic Carbon Standard, 10,000 ppm C - R1845900-250C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-770-001-at-25-c-1576-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_bede96eb-18d5-41fb-b2e5-cea9d10706cf.png?v=1776328809</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.70 ± 0.01 at 25 °C - 1576-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.70 ± 0.01 at 25 °C - 1576-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-precision-reference-standard-ph-7500-0002-at-25c-1572-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_16acf188-04ef-4f1d-a48a-772f6275bcb3.png?v=1776328808</image:loc>
      <image:title>Buffer, Precision Reference Standard, pH 7.500 ± 0.002 at 25°C - 1572-16</image:title>
      <image:caption>Buffer, Precision Reference Standard, pH 7.500 ± 0.002 at 25°C - 1572-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tris-buffer-1-molar-ph-750-1630-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_50202108-e0f6-4017-b5d1-a93bf1a6fec3.png?v=1776328807</image:loc>
      <image:title>TRIS Buffer, 1 Molar, pH 7.50 - 1630-2.5</image:title>
      <image:caption>TRIS Buffer, 1 Molar, pH 7.50 - 1630-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1245-001-at-25c-1618-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_01c90fd3-441b-4fc6-ae51-613616532172.png?v=1776328811</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.45 ± 0.01 at 25°C - 1618-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.45 ± 0.01 at 25°C - 1618-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-500-ppm-c-18465-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_fd16d542-fd47-48a8-ac22-a2ee5491f68f.png?v=1776328810</image:loc>
      <image:title>Organic Carbon Standard, 500 ppm C - 1846.5-32</image:title>
      <image:caption>Organic Carbon Standard, 500 ppm C - 1846.5-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1245-001-at-25c-1618-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_2125f528-fbda-4a83-a00a-d1301c14a355.png?v=1776328809</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.45 ± 0.01 at 25°C - 1618-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.45 ± 0.01 at 25°C - 1618-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-600-001-at-25c-1510-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_619708d8-9048-4b16-8ccd-4dc3e8b9f683.png?v=1776328810</image:loc>
      <image:title>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-tris-10-mm-ph-78-r1566200-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_36b7e5c1-16ad-4b65-bdc5-83ba864dc35d.png?v=1776328810</image:loc>
      <image:title>Buffer, TRIS, 10 mM, pH 7.8 - R1566200-500A</image:title>
      <image:caption>Buffer, TRIS, 10 mM, pH 7.8 - R1566200-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloridesulfate-ic-standard-5-ppm-cl-5-ppm-so-r1962050-50a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d0f0e1a6-2147-4cdf-9c8b-85fa07477e92.png?v=1776328808</image:loc>
      <image:title>Chloride/Sulfate IC Standard, 5 ppm Cl, 5 ppm SO? - R1962050-50A</image:title>
      <image:caption>Chloride/Sulfate IC Standard, 5 ppm Cl, 5 ppm SO? - R1962050-50A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1300-001-at-25c-1625-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_26f2aa22-bde9-4889-a826-66b9dc6df08d.png?v=1776328810</image:loc>
      <image:title>Buffer, Reference Standard, pH 13.00 ± 0.01 at 25°C - 1625-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 13.00 ± 0.01 at 25°C - 1625-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloridesulfate-ic-standard-10-ppm-cl-10-ppm-so-r1962100-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_b9fd0a2b-75de-4318-a38b-1cd6a9f85a87.png?v=1776328810</image:loc>
      <image:title>Chloride/Sulfate IC Standard, 10 ppm Cl, 10 ppm SO? - R1962100-500A</image:title>
      <image:caption>Chloride/Sulfate IC Standard, 10 ppm Cl, 10 ppm SO? - R1962100-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-1000-ppm-c-with-hso-preservative-18472-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_a196b4a3-8c8e-47ea-b03d-f8bd4667339a.png?v=1776328810</image:loc>
      <image:title>Organic Carbon Standard, 1000 ppm C (with H?SO? preservative) - 1847.2-16</image:title>
      <image:caption>Organic Carbon Standard, 1000 ppm C (with H?SO? preservative) - 1847.2-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-1500-ppm-c-184715-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_927be080-41d5-4da5-b4b7-e1665a6f9684.png?v=1776328808</image:loc>
      <image:title>Organic Carbon Standard, 1500 ppm C - 1847.15-16</image:title>
      <image:caption>Organic Carbon Standard, 1500 ppm C - 1847.15-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tris-buffer-ph-760-001-at-25c-1571-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_1fb4c416-d3dd-40c1-b3f1-8056dc3c6ae7.png?v=1776328813</image:loc>
      <image:title>TRIS Buffer, pH 7.60 ± 0.01 at 25°C - 1571-5</image:title>
      <image:caption>TRIS Buffer, pH 7.60 ± 0.01 at 25°C - 1571-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-2000-ppm-c-1848-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_e65b3966-e712-4014-9299-bf8344cb3c43.png?v=1776328812</image:loc>
      <image:title>Organic Carbon Standard, 2000 ppm C - 1848-32</image:title>
      <image:caption>Organic Carbon Standard, 2000 ppm C - 1848-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1245-001-at-25c-1618-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_2dd01783-248f-4f0d-afbe-a2ca761317ce.png?v=1776328810</image:loc>
      <image:title>Buffer, Reference Standard, pH 12.45 ± 0.01 at 25°C - 1618-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 12.45 ± 0.01 at 25°C - 1618-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-nitrate-ic-standard-1-ppm-cl-3-ppm-no-r1964020-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_e3f67940-e12a-435e-ad6a-48a6224fb9cc.png?v=1776328812</image:loc>
      <image:title>Chloride / Nitrate IC Standard, 1 ppm Cl?, 3 ppm NO?? - R1964020-500A</image:title>
      <image:caption>Chloride / Nitrate IC Standard, 1 ppm Cl?, 3 ppm NO?? - R1964020-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-770-001-at-25-c-1576-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_f080ce19-6d1d-4524-aec8-631d43216bfe.png?v=1776328812</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.70 ± 0.01 at 25 °C - 1576-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.70 ± 0.01 at 25 °C - 1576-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-800-001-at-25c-1580-1ct</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_f3e20ea4-4976-4104-9654-77a1ae7f4747.png?v=1776328809</image:loc>
      <image:title>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-1CT</image:title>
      <image:caption>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-1CT</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-770-001-at-25-c-1576-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_6d64f31a-fc2e-43e0-9b3d-31fba1223e83.png?v=1776328810</image:loc>
      <image:title>Buffer, Reference Standard, pH 7.70 ± 0.01 at 25 °C - 1576-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 7.70 ± 0.01 at 25 °C - 1576-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-standard-100-ppm-cd-1695-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500a_eed3006d-ddd4-41e7-b072-483e9fedacc7.png?v=1776328807</image:loc>
      <image:title>Cadmium Standard, 100 ppm Cd - 1695-16</image:title>
      <image:caption>Cadmium Standard, 100 ppm Cd - 1695-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloridometer-acid-reagent-1970-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_20f_c3303406-2485-4e46-8402-0fa6440fd319.png?v=1776328811</image:loc>
      <image:title>Chloridometer Acid Reagent - 1970-5</image:title>
      <image:caption>Chloridometer Acid Reagent - 1970-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/n-butyl-alcohol-acs-reagent-grade-r1651000-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_6af65771-5499-4e54-96bc-3a833622df97.png?v=1776328811</image:loc>
      <image:title>n-Butyl Alcohol, ACS Reagent Grade - R1651000-500A</image:title>
      <image:caption>n-Butyl Alcohol, ACS Reagent Grade - R1651000-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-800-001-at-25c-1580-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_cba9d794-bed7-405c-96b4-3a63c30178da.png?v=1776328812</image:loc>
      <image:title>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-580-001-at-25c-r1509000-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_a4c65d93-d92c-4822-984d-3d96ed0a87a2.png?v=1776328810</image:loc>
      <image:title>Buffer, Reference Standard, pH 5.80 ± 0.01 at 25°C - R1509000-1A</image:title>
      <image:caption>Buffer, Reference Standard, pH 5.80 ± 0.01 at 25°C - R1509000-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-5000-ppm-c-with-hcl-r1849100-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_99b2369d-2e1b-4d27-9ba7-b03ad5b3bfae.png?v=1776328811</image:loc>
      <image:title>Organic carbon standard, 5000 ppm C with HCl - R1849100-500C</image:title>
      <image:caption>Organic carbon standard, 5000 ppm C with HCl - R1849100-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/tris-buffer-190-mm-ph-85-with-04-sodium-lauryl-sulfate-r1583520-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_ef53e49d-8b88-43d1-87c1-9b9bbba5d5cd.png?v=1776328811</image:loc>
      <image:title>TRIS Buffer, 190 mM, pH 8.5 with 0.4% Sodium Lauryl Sulfate - R1583520-1A</image:title>
      <image:caption>TRIS Buffer, 190 mM, pH 8.5 with 0.4% Sodium Lauryl Sulfate - R1583520-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/peg-6000-buffer-ph-740-005-m-tris-015-m-nacl-r1566100-250a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_f97ab5d5-59d3-433b-81f7-34e3a155e61c.png?v=1776328815</image:loc>
      <image:title>PEG 6000 Buffer, pH 7.40, 0.05 M TRIS / 0.15 M NaCl - R1566100-250A</image:title>
      <image:caption>PEG 6000 Buffer, pH 7.40, 0.05 M TRIS / 0.15 M NaCl - R1566100-250A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-tris-1-m-ph-74-r1566500-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_28e0df9a-a12e-4cd3-a8d0-366ac708554f.png?v=1776328812</image:loc>
      <image:title>Buffer, TRIS, 1 M, pH 7.4 - R1566500-500A</image:title>
      <image:caption>Buffer, TRIS, 1 M, pH 7.4 - R1566500-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-5000-ppm-c-r1849500-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_0abef3f4-b424-48c6-840d-4e64de51ccf7.png?v=1776328811</image:loc>
      <image:title>Organic Carbon Standard, 5000 ppm C - R1849500-500C</image:title>
      <image:caption>Organic Carbon Standard, 5000 ppm C - R1849500-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-4500-ppm-c-184945-1ct</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_a80fad2d-e100-46ec-bf7d-2164c1a3ccc4.png?v=1776328812</image:loc>
      <image:title>Organic Carbon Standard, 4500 ppm C - 1849.45-1CT</image:title>
      <image:caption>Organic Carbon Standard, 4500 ppm C - 1849.45-1CT</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-800-001-at-25c-1580-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_adff6af2-c0d8-4997-8d15-213c46299ad7.png?v=1776328813</image:loc>
      <image:title>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-800-001-at-25c-1580-20</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c863f10b-4534-4d2f-a495-6f3d033754ce.png?v=1776328810</image:loc>
      <image:title>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-20</image:title>
      <image:caption>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-20</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-400-ppm-c-18464-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_1cbfa2a1-646c-403e-b69d-52dbe3642956.png?v=1776328813</image:loc>
      <image:title>Organic Carbon Standard, 400 ppm C - 1846.4-16</image:title>
      <image:caption>Organic Carbon Standard, 400 ppm C - 1846.4-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-acetate-10-wv-r1708990-50a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2f03fc15-c839-4c6a-84c1-7bd369eb2ca2.png?v=1776328813</image:loc>
      <image:title>Calcium Acetate 10% w/v - R1708990-50A</image:title>
      <image:caption>Calcium Acetate 10% w/v - R1708990-50A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/carmine-reagent-for-boron-determination-1850-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_120c_f735449d-a250-44f2-8447-52bd7df4d10c.png?v=1776328814</image:loc>
      <image:title>Carmine Reagent, for Boron determination - 1850-4</image:title>
      <image:caption>Carmine Reagent, for Boron determination - 1850-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-1000-ppm-c-with-hcl-r184900-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_fb71c8b6-7b22-4dbd-9212-2a5f81b3ec05.png?v=1776328815</image:loc>
      <image:title>Organic carbon standard, 1000 ppm C with HCl - R184900-500C</image:title>
      <image:caption>Organic carbon standard, 1000 ppm C with HCl - R184900-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-200-ppm-c-r1846200-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_485cfd43-d608-4ab6-a101-da93f75f00b0.png?v=1776328815</image:loc>
      <image:title>Organic Carbon Standard, 200 ppm C - R1846200-500C</image:title>
      <image:caption>Organic Carbon Standard, 200 ppm C - R1846200-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-carbonate-00200-molar-r1715000-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_6e1d833b-e158-4e94-a4d6-b3545599f364.png?v=1776328813</image:loc>
      <image:title>Calcium Carbonate, 0.0200 Molar - R1715000-1A</image:title>
      <image:caption>Calcium Carbonate, 0.0200 Molar - R1715000-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-tris-02-molar-ph-84-r1583400-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_703de91b-2fbe-4ed3-b3ec-d8d602c51bdc.png?v=1776328814</image:loc>
      <image:title>Buffer, Tris, 0.2 Molar, pH 8.4 - R1583400-20F</image:title>
      <image:caption>Buffer, Tris, 0.2 Molar, pH 8.4 - R1583400-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-900-001-at-25c-1590-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_c5573f8b-a9f2-4124-a33d-b71478b5771b.png?v=1776328813</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-5000-ppm-c-r1849500-1c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_90e249b6-2e63-448d-9b29-396b9c26cd4a.png?v=1776328815</image:loc>
      <image:title>Organic Carbon Standard, 5000 ppm C - R1849500-1C</image:title>
      <image:caption>Organic Carbon Standard, 5000 ppm C - R1849500-1C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-900-001-at-25c-1590-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_4f02955b-4b24-4b29-a545-07ed648c0b03.png?v=1776328814</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-900-001-at-25c-1590-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_4a0173f8-4bc6-416b-adb5-e24e427d549f.png?v=1776328814</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-2.5</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-800-usp-reagent-r1583200-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_73a2d3ca-e07f-4f88-83f1-b90e1a8915c0.png?v=1776328815</image:loc>
      <image:title>Buffer, pH 8.00, USP Reagent - R1583200-1A</image:title>
      <image:caption>Buffer, pH 8.00, USP Reagent - R1583200-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/burnout-solution-r1638000-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4a_7ea4223e-ea1a-4665-9e48-e765c857ca83.png?v=1776328813</image:loc>
      <image:title>Burnout Solution - R1638000-4A</image:title>
      <image:caption>Burnout Solution - R1638000-4A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloroform-methanol-6535-r1999100-4c1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_67b2008d-9d71-4de9-be82-808163041b23.png?v=1776328817</image:loc>
      <image:title>Chloroform / Methanol, 65:35 - R1999100-4C1</image:title>
      <image:caption>Chloroform / Methanol, 65:35 - R1999100-4C1</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-275-wv-1720-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_fae78641-df0d-459e-9fef-c491a57acb4e.png?v=1776328814</image:loc>
      <image:title>Calcium Chloride, 2.75% (w/v) - 1720-32</image:title>
      <image:caption>Calcium Chloride, 2.75% (w/v) - 1720-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-000705-molar-r1727000-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_b4b437af-feff-4d9f-9bd1-ce8b3618dd1a.png?v=1776328818</image:loc>
      <image:title>Calcium Chloride, 0.00705 Molar - R1727000-4A</image:title>
      <image:caption>Calcium Chloride, 0.00705 Molar - R1727000-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-carbonate-standard-0100-molar-m10-1716-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_367b83b9-c725-4a63-b891-53f59e43a3aa.png?v=1776328817</image:loc>
      <image:title>Calcium Carbonate Standard, 0.100 Molar (M/10) - 1716-32</image:title>
      <image:caption>Calcium Carbonate Standard, 0.100 Molar (M/10) - 1716-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-840-001-at-25c-r1583600-250a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8f1c682b-9d5b-4f23-a1c4-a6e313fd664a.png?v=1776328816</image:loc>
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      <image:caption>Buffer, Reference Standard, pH 8.40 ± 0.01 at 25°C - R1583600-250A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-solution-ph-825-r1583300-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_d758af77-d703-440d-8eb2-56618efbe8d4.png?v=1776328817</image:loc>
      <image:title>Buffer Solution, pH 8.25 - R1583300-20F</image:title>
      <image:caption>Buffer Solution, pH 8.25 - R1583300-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-carbonate-standard-0100-molar-m10-1716-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_7c5fbcf8-5f49-4435-8de0-402b81a7b357.png?v=1776328819</image:loc>
      <image:title>Calcium Carbonate Standard, 0.100 Molar (M/10) - 1716-16</image:title>
      <image:caption>Calcium Carbonate Standard, 0.100 Molar (M/10) - 1716-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-5000-ppm-c-r1849500-4c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_186efd51-e4a6-4305-9e93-537b73d2b47a.png?v=1776328814</image:loc>
      <image:title>Organic Carbon Standard, 5000 ppm C - R1849500-4C</image:title>
      <image:caption>Organic Carbon Standard, 5000 ppm C - R1849500-4C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloridesulfate-ic-standard-5-ppm-cl-5-ppm-so-in-reagent-alcohol-r1963050-100a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5307813f-d6a3-4dd7-8a5d-6d3e406dbeac.png?v=1776328820</image:loc>
      <image:title>Chloride/Sulfate IC Standard, 5 ppm Cl?, 5 ppm SO?²? in Reagent Alcohol - R1963050-100A</image:title>
      <image:caption>Chloride/Sulfate IC Standard, 5 ppm Cl?, 5 ppm SO?²? in Reagent Alcohol - R1963050-100A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-sulfate-alloy-check-r1707600-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_1fc5627d-fbfb-48f5-9108-b97c300bfa2f.png?v=1776328815</image:loc>
      <image:title>Cadmium Sulfate Alloy Check - R1707600-1A</image:title>
      <image:caption>Cadmium Sulfate Alloy Check - R1707600-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-standard-20-ppm-cd-r1686020-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500a_b35b6a00-42cd-43d6-92ad-67edab380c29.png?v=1776328819</image:loc>
      <image:title>Cadmium Standard, 20 ppm Cd - R1686020-500A</image:title>
      <image:caption>Cadmium Standard, 20 ppm Cd - R1686020-500A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/carmine-reagent-for-boron-determination-1850-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_367eb944-b8f8-439a-92e6-3dc5c52198d8.png?v=1776328817</image:loc>
      <image:title>Carmine Reagent, for Boron determination - 1850-32</image:title>
      <image:caption>Carmine Reagent, for Boron determination - 1850-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-sulfate-alloy-check-r1707600-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_9646f81b-e053-46d0-a917-bdc64ccaaba8.png?v=1776328819</image:loc>
      <image:title>Cadmium Sulfate Alloy Check - R1707600-4A</image:title>
      <image:caption>Cadmium Sulfate Alloy Check - R1707600-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-precision-reference-standard-ph-8000-0005-at-25c-1582-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_b45057b8-cec5-43ed-b44a-cb292e50e60b.png?v=1776328817</image:loc>
      <image:title>Buffer, Precision Reference Standard, pH 8.000 ± 0.005 at 25°C - 1582-16</image:title>
      <image:caption>Buffer, Precision Reference Standard, pH 8.000 ± 0.005 at 25°C - 1582-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-10000-ppm-with-hcl-r1849200-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_c246a505-8c37-4f93-835b-9d7c6520494a.png?v=1776328819</image:loc>
      <image:title>Organic carbon standard, 10,000 ppm with HCl - R1849200-500C</image:title>
      <image:caption>Organic carbon standard, 10,000 ppm with HCl - R1849200-500C</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-nitrate-0100-normal-n10-1680-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_4a_d90377a8-7899-4a6a-8336-c5e41736d5b3.png?v=1776328819</image:loc>
      <image:title>Cadmium Nitrate, 0.100 Normal (N/10) - 1680-1</image:title>
      <image:caption>Cadmium Nitrate, 0.100 Normal (N/10) - 1680-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloroform-butanol-reagent-1996-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_1c_89b1559d-45c3-4d43-b0b8-5b86c3de6d8f.png?v=1776328819</image:loc>
      <image:title>Chloroform - Butanol Reagent - 1996-32</image:title>
      <image:caption>Chloroform - Butanol Reagent - 1996-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chlorophenol-red-indicator-004-wv-2000-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_6c8b5af3-96f9-41a6-9e19-b76e58619e55.png?v=1776328819</image:loc>
      <image:title>Chlorophenol Red Indicator, 0.04% (w/v) - 2000-4</image:title>
      <image:caption>Chlorophenol Red Indicator, 0.04% (w/v) - 2000-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-1000-ppm-c-1847-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120c_499436ae-123b-4338-954f-a8826fbc57df.png?v=1776328820</image:loc>
      <image:title>Organic Carbon Standard, 1000 ppm C - 1847-4</image:title>
      <image:caption>Organic Carbon Standard, 1000 ppm C - 1847-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-nitrate-ic-standard-05-ppm-cl-2-ppm-no-r1964010-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_15ec108e-1b7c-413c-8c85-a2e3cf2c1e89.png?v=1776328818</image:loc>
      <image:title>Chloride / Nitrate IC Standard, 0.5 ppm Cl?, 2 ppm NO?? - R1964010-500A</image:title>
      <image:caption>Chloride / Nitrate IC Standard, 0.5 ppm Cl?, 2 ppm NO?? - R1964010-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/carnoys-solution-fixative-r1851000-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500c_7a7faa6b-c70b-4f6f-8cf8-beef686ac713.png?v=1776328821</image:loc>
      <image:title>Carnoy&apos;s Solution (Fixative) - R1851000-500C</image:title>
      <image:caption>Carnoy&apos;s Solution (Fixative) - R1851000-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-600-001-at-25c-1510-1ct</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_318736f7-f395-47b7-a9f0-3d4ec68cd763.png?v=1776328818</image:loc>
      <image:title>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-1CT</image:title>
      <image:caption>Buffer, Reference Standard, pH 6.00 ± 0.01 at 25°C - 1510-1CT</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-800-001-at-25c-1580-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_f650ab9d-4809-479c-827c-f6d080186769.png?v=1776328821</image:loc>
      <image:title>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloridesulfate-ic-standard-5-ppm-cl-5-ppm-so-in-reagent-alcohol-r1963050-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_500a_f06b809c-0780-4d5f-8cf4-0d08f4f70416.png?v=1776328821</image:loc>
      <image:title>Chloride/Sulfate IC Standard, 5 ppm Cl?, 5 ppm SO?²? in Reagent Alcohol - R1963050-500A</image:title>
      <image:caption>Chloride/Sulfate IC Standard, 5 ppm Cl?, 5 ppm SO?²? in Reagent Alcohol - R1963050-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chlorine-water-saturated-approximately-03-wv-1980-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Chlorine Water, Saturated , approximately 0.3% (w/v) - 1980-32</image:title>
      <image:caption>Chlorine Water, Saturated , approximately 0.3% (w/v) - 1980-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-10000-ppm-c-r1849900-100c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Organic Carbon Standard, 10,000 ppm C - R1849900-100C</image:title>
      <image:caption>Organic Carbon Standard, 10,000 ppm C - R1849900-100C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-900-001-at-25c-1590-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-900-01-molar-boric-acid-01-molar-potassium-chloride-r1590200-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_48df8fe7-23ce-4ae3-b99a-54e5fa5ed57e.png?v=1776328823</image:loc>
      <image:title>Buffer, pH 9.00, 0.1 Molar Boric Acid / 0.1 Molar Potassium Chloride - R1590200-1A</image:title>
      <image:caption>Buffer, pH 9.00, 0.1 Molar Boric Acid / 0.1 Molar Potassium Chloride - R1590200-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromate-standard-1000-ppm-cro-2070-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_120a_5412f66a-dd97-4018-af27-4e2f4d286060.png?v=1776328822</image:loc>
      <image:title>Chromate Standard, 1000 ppm CrO?²? - 2070-4</image:title>
      <image:caption>Chromate Standard, 1000 ppm CrO?²? - 2070-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-918-001-at-25c-1595-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_4bee5307-0f00-4db5-b845-96b0568f1b69.png?v=1776328821</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/carnoys-solution-fixative-r1851000-4c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4c_7a6d7563-5b77-45f8-bc1c-1d17d4a8b48c.png?v=1776328821</image:loc>
      <image:title>Carnoy&apos;s Solution (Fixative) - R1851000-4C</image:title>
      <image:caption>Carnoy&apos;s Solution (Fixative) - R1851000-4C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-ammonium-nitrate-0100-normal-in-345-vv-perchloric-acid-r1886000-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_a5e6a4c4-bd65-4a57-8ecc-967ab4edd4c0.png?v=1776328819</image:loc>
      <image:title>Ceric Ammonium Nitrate, 0.100 Normal in 34.5% (v/v) Perchloric Acid - R1886000-500C</image:title>
      <image:caption>Ceric Ammonium Nitrate, 0.100 Normal in 34.5% (v/v) Perchloric Acid - R1886000-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chlorophenol-red-indicator-004-wv-2000-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_67b5c7df-e23d-45b6-aad5-40529dbab707.png?v=1776328822</image:loc>
      <image:title>Chlorophenol Red Indicator, 0.04% (w/v) - 2000-32</image:title>
      <image:caption>Chlorophenol Red Indicator, 0.04% (w/v) - 2000-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-900-001-at-25c-1590-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_defbc577-a1e0-46cc-b6ca-ffa0e75f60bb.png?v=1776328823</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/trishydroxymethylaminomethane-100-molar-r1588500-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_18e7bc95-90e8-4428-85c3-a13d1f2032b5.png?v=1776328824</image:loc>
      <image:title>Tris(hydroxymethyl)aminomethane, 1.00 Molar - R1588500-500A</image:title>
      <image:caption>Tris(hydroxymethyl)aminomethane, 1.00 Molar - R1588500-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-100-ppm-c-with-hcl-r1849250-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_6a687793-8578-489f-a935-c512b862b7f7.png?v=1776328822</image:loc>
      <image:title>Organic Carbon Standard, 100 ppm C with HCl - R1849250-500C</image:title>
      <image:caption>Organic Carbon Standard, 100 ppm C with HCl - R1849250-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloridometer-acid-reagent-1970-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500a_1930055a-042f-4d6b-8a85-cce4960c2a17.png?v=1776328824</image:loc>
      <image:title>Chloridometer Acid Reagent - 1970-16</image:title>
      <image:caption>Chloridometer Acid Reagent - 1970-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-standard-100-ppm-cr-2095-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_120a_99e0b519-6068-401d-a8d3-8228b13494c6.png?v=1776328821</image:loc>
      <image:title>Hexavalent Chromium Standard, 100 ppm Cr?? - 2095-4</image:title>
      <image:caption>Hexavalent Chromium Standard, 100 ppm Cr?? - 2095-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-solution-ph-954-r1597400-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_3c42309e-9b0f-4860-89ac-48113995e3b2.png?v=1776328825</image:loc>
      <image:title>Buffer solution, pH 9.54 - R1597400-500A</image:title>
      <image:caption>Buffer solution, pH 9.54 - R1597400-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chlorine-water-saturated-approximately-03-wv-1980-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_180b981d-db9b-43fe-89c9-850262400014.png?v=1776328822</image:loc>
      <image:title>Chlorine Water, Saturated , approximately 0.3% (w/v) - 1980-16</image:title>
      <image:caption>Chlorine Water, Saturated , approximately 0.3% (w/v) - 1980-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-900-001-at-25c-1590-1ct</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_4bbadacf-694a-4454-be41-2569edb94667.png?v=1776328825</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-1ct</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.00 ± 0.01 at 25°C - 1590-1ct</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-800-001-at-25c-1580-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_c75f29b9-9454-490a-ab6b-171aefd36c2b.png?v=1776328826</image:loc>
      <image:title>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 8.00 ± 0.01 at 25°C - 1580-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cation-mixed-standard-solution-1000-ppm-li-na-nh-k-mg-ca-r1854100-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_fa1f19e4-ca9b-4fdf-8831-a80128e9e9bb.png?v=1776328827</image:loc>
      <image:title>Cation Mixed Standard Solution, 1000 ppm Li, Na, NH?, K, Mg, Ca - R1854100-500A</image:title>
      <image:caption>Cation Mixed Standard Solution, 1000 ppm Li, Na, NH?, K, Mg, Ca - R1854100-500A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-0100-normal-n10-00500-molar-m20-1740-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_5d80dc02-3379-4d3f-a9b5-ae2781665512.png?v=1776328827</image:loc>
      <image:title>Calcium Chloride, 0.100 Normal (N/10), 0.0500 Molar (M/20) - 1740-1</image:title>
      <image:caption>Calcium Chloride, 0.100 Normal (N/10), 0.0500 Molar (M/20) - 1740-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-sulfate-005-wv-r1707500-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500a_5bda6f5c-a772-4e5e-9935-9e51dee7d9fc.png?v=1776328823</image:loc>
      <image:title>Cadmium Sulfate, 0.05% (w/v) - R1707500-500A</image:title>
      <image:caption>Cadmium Sulfate, 0.05% (w/v) - R1707500-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-275-wv-1720-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_20571e9c-9e20-4695-b3f1-257ec436dc0c.png?v=1776328823</image:loc>
      <image:title>Calcium Chloride, 2.75% (w/v) - 1720-1</image:title>
      <image:caption>Calcium Chloride, 2.75% (w/v) - 1720-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-0500-molar-m2-r1764000-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_cf61901d-c8a9-44c0-8daa-02c6667329ec.png?v=1776328825</image:loc>
      <image:title>Calcium Chloride, 0.500 Molar (M/2) - R1764000-1A</image:title>
      <image:caption>Calcium Chloride, 0.500 Molar (M/2) - R1764000-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-10-gl-in-mixed-alcohol-solvent-for-determination-of-salts-in-crude-oil-1718-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_5a467fbe-80b3-4081-96f3-7dfe3daf23c6.png?v=1776328825</image:loc>
      <image:title>Calcium Chloride, 10 g/L in Mixed Alcohol Solvent for determination of Salts in Crude Oil - 1718-32</image:title>
      <image:caption>Calcium Chloride, 10 g/L in Mixed Alcohol Solvent for determination of Salts in Crude Oil - 1718-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromate-standard-1000-ppm-cro-2070-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500a_731e7055-cd6b-433a-a7fe-fde2cf593d88.png?v=1776328824</image:loc>
      <image:title>Chromate Standard, 1000 ppm CrO?²? - 2070-16</image:title>
      <image:caption>Chromate Standard, 1000 ppm CrO?²? - 2070-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-8153-0005-at-25c-r1583230-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_26a7a343-efb1-4333-9cd6-edca38855b6a.png?v=1776328824</image:loc>
      <image:title>Buffer, Reference Standard, pH 8.153 ± 0.005 at 25°C - R1583230-20F</image:title>
      <image:caption>Buffer, Reference Standard, pH 8.153 ± 0.005 at 25°C - R1583230-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chlorophenol-red-indicator-004-wv-2000-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_02ee8ef7-b3ce-4afb-a294-734c687a75e4.png?v=1776328824</image:loc>
      <image:title>Chlorophenol Red Indicator, 0.04% (w/v) - 2000-16</image:title>
      <image:caption>Chlorophenol Red Indicator, 0.04% (w/v) - 2000-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cadmium-standard-05-ppm-cd-r1686005-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500a_a39567b6-c638-4db7-a908-05aaa26cf984.png?v=1776328826</image:loc>
      <image:title>Cadmium Standard, 0.5 ppm Cd - R1686005-500A</image:title>
      <image:caption>Cadmium Standard, 0.5 ppm Cd - R1686005-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-918-001-at-25c-1595-1ct</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-4f_b53e2a94-2212-418a-b97a-6e47f228d8c1.png?v=1776328823</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-1CT</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-1CT</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-ammonium-sulfate-0100-normal-n10-in-1-normal-sulfuric-acid-1890-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_a9c98eec-fd84-495f-a367-9dbcf6f9ca15.png?v=1776328826</image:loc>
      <image:title>Ceric Ammonium Sulfate, 0.100 Normal (N/10) in 1 Normal Sulfuric Acid - 1890-16</image:title>
      <image:caption>Ceric Ammonium Sulfate, 0.100 Normal (N/10) in 1 Normal Sulfuric Acid - 1890-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/citrate-buffer-2-molar-ph-600-r2105062-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_0b890f10-83d8-41d3-b890-d2bee989f1f8.png?v=1776328833</image:loc>
      <image:title>Citrate Buffer, 2 Molar, pH 6.00 - R2105062-1A</image:title>
      <image:caption>Citrate Buffer, 2 Molar, pH 6.00 - R2105062-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-860-001-at-25c-borax-boric-acid-formulation-1586-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_24d830ea-45a5-46a5-8fd7-4c25584c57d3.png?v=1776328826</image:loc>
      <image:title>Buffer, Reference Standard, pH 8.60 ± 0.01 at 25°C (Borax-Boric Acid Formulation) - 1586-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 8.60 ± 0.01 at 25°C (Borax-Boric Acid Formulation) - 1586-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-ammonium-sulfate-00200-normal-n50-in-1-normal-sulfuric-acid-1887-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_142dd1d0-5c6a-4aef-91fa-bbb6543f3cf5.png?v=1776328826</image:loc>
      <image:title>Ceric Ammonium Sulfate, 0.0200 Normal (N/50) in 1 Normal Sulfuric Acid - 1887-4</image:title>
      <image:caption>Ceric Ammonium Sulfate, 0.0200 Normal (N/50) in 1 Normal Sulfuric Acid - 1887-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromic-acid-standard-r2078000-1c1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_78f2f5f8-53f1-447d-850b-2d95337235ea.png?v=1776328824</image:loc>
      <image:title>Chromic Acid Standard - R2078000-1C1</image:title>
      <image:caption>Chromic Acid Standard - R2078000-1C1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-ammonium-sulfate-00200-normal-n50-in-1-normal-sulfuric-acid-1887-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_5d0cf725-792f-40ad-b9f9-95279e12652d.png?v=1776328825</image:loc>
      <image:title>Ceric Ammonium Sulfate, 0.0200 Normal (N/50) in 1 Normal Sulfuric Acid - 1887-16</image:title>
      <image:caption>Ceric Ammonium Sulfate, 0.0200 Normal (N/50) in 1 Normal Sulfuric Acid - 1887-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-918-001-at-25c-1595-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_9853feb9-93f7-45f4-be0e-ba82e1d382a2.png?v=1776328827</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-2.5</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1000-001-at-25c-1600-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_ea129580-584c-471f-bf3c-30ebb0b3fbcb.png?v=1776328826</image:loc>
      <image:title>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C - 1600-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C - 1600-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-00100-molar-m100-1728-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_305e1f9e-a0c0-4c86-b6d2-232217fcf5a6.png?v=1776328825</image:loc>
      <image:title>Calcium Chloride, 0.0100 Molar (M/100) - 1728-1</image:title>
      <image:caption>Calcium Chloride, 0.0100 Molar (M/100) - 1728-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-0500-molar-m2-r1764000-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_cf27f004-9549-4d69-b360-3d3f248820c1.png?v=1776328828</image:loc>
      <image:title>Calcium Chloride, 0.500 Molar (M/2) - R1764000-500A</image:title>
      <image:caption>Calcium Chloride, 0.500 Molar (M/2) - R1764000-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/citrate-buffer-078-mm-r2111710-100a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_cfe34aa4-f3ee-4f0c-aa84-21e6dcfb00ee.png?v=1776328825</image:loc>
      <image:title>Citrate Buffer, 0.78 mM - R2111710-100A</image:title>
      <image:caption>Citrate Buffer, 0.78 mM - R2111710-100A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1256-001-at-25c-r1619400-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_9b720008-e0ec-4f17-88d7-c9116e05a141.png?v=1776328826</image:loc>
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      <image:caption>Buffer, Reference Standard, pH 12.56 ± 0.01 at 25°C - R1619400-1A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-10000-ppm-c-ethylene-glycol-in-02-hso-184995-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_93b04d93-08bd-4218-abe0-4ad65cf0db9f.png?v=1776328832</image:loc>
      <image:title>Organic Carbon Standard, 10,000 ppm C (Ethylene Glycol in 0.2% H?SO?) - 1849.95-1</image:title>
      <image:caption>Organic Carbon Standard, 10,000 ppm C (Ethylene Glycol in 0.2% H?SO?) - 1849.95-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/carmine-reagent-for-boron-determination-1850-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_23ab2b17-5d02-42f9-9fae-390c9e0fd05a.png?v=1776328828</image:loc>
      <image:title>Carmine Reagent, for Boron determination - 1850-16</image:title>
      <image:caption>Carmine Reagent, for Boron determination - 1850-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-ammonium-sulfate-0100-normal-n10-in-1-normal-sulfuric-acid-1890-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_40d18f48-1b68-4f15-999d-d5e04ac37e9c.png?v=1776328830</image:loc>
      <image:title>Ceric Ammonium Sulfate, 0.100 Normal (N/10) in 1 Normal Sulfuric Acid - 1890-32</image:title>
      <image:caption>Ceric Ammonium Sulfate, 0.100 Normal (N/10) in 1 Normal Sulfuric Acid - 1890-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-sulfate-0100-normal-n10-in-2-normal-sulfuric-acid-1900-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_20f_392f8b3c-8ad2-4079-956e-5ab5633f519c.png?v=1776328833</image:loc>
      <image:title>Ceric Sulfate, 0.100 Normal (N/10) in 2 Normal Sulfuric Acid - 1900-5</image:title>
      <image:caption>Ceric Sulfate, 0.100 Normal (N/10) in 2 Normal Sulfuric Acid - 1900-5</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-10-ppm-with-hcl-r1849300-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_658e7dcd-b4c3-4724-8283-af80aef83895.png?v=1776328829</image:loc>
      <image:title>Organic carbon standard, 10 ppm with HCl - R1849300-500C</image:title>
      <image:caption>Organic carbon standard, 10 ppm with HCl - R1849300-500C</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-10000-ppm-c-ethylene-glycol-in-02-hso-184995-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_c818c3cd-1cdd-4e1e-b576-ae649bdd54f2.png?v=1776328833</image:loc>
      <image:title>Organic Carbon Standard, 10,000 ppm C (Ethylene Glycol in 0.2% H?SO?) - 1849.95-16</image:title>
      <image:caption>Organic Carbon Standard, 10,000 ppm C (Ethylene Glycol in 0.2% H?SO?) - 1849.95-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-ph-900-usp-reagent-alkaline-borate-buffer-r1590220-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_04b93c00-cb6d-4bde-b1fc-bec9c3e7f826.png?v=1776328831</image:loc>
      <image:title>Buffer, pH 9.00, USP Reagent Alkaline Borate Buffer - R1590220-1A</image:title>
      <image:caption>Buffer, pH 9.00, USP Reagent Alkaline Borate Buffer - R1590220-1A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-standard-1000-ppm-caco-400-ppm-ca-00100-m-ca-00200-n-ca-1780-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_35a1f7c5-d1cf-41c3-bedd-982d9b900341.png?v=1776328831</image:loc>
      <image:title>Calcium Chloride Standard, 1000 ppm CaCO? (400 ppm Ca), 0.0100 M Ca²?, 0.0200 N Ca²? - 1780-4</image:title>
      <image:caption>Calcium Chloride Standard, 1000 ppm CaCO? (400 ppm Ca), 0.0100 M Ca²?, 0.0200 N Ca²? - 1780-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromic-acid-10-wv-2077-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1c_ba2ca37f-0d1e-4a58-a8d1-0f6b5d516fb2.png?v=1776328832</image:loc>
      <image:title>Chromic Acid, 10% (w/v) - 2077-32</image:title>
      <image:caption>Chromic Acid, 10% (w/v) - 2077-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-8153-0005-at-25c-r1583230-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_d29e9bf7-0dbb-4eaf-83f5-39c0177a139a.png?v=1776328829</image:loc>
      <image:title>Buffer, Reference Standard, pH 8.153 ± 0.005 at 25°C - R1583230-500A</image:title>
      <image:caption>Buffer, Reference Standard, pH 8.153 ± 0.005 at 25°C - R1583230-500A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloroform-butanol-reagent-1996-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_4c_9174d5d8-fc32-4750-bf11-30ad9f5b4a9e.png?v=1776328831</image:loc>
      <image:title>Chloroform - Butanol Reagent - 1996-1</image:title>
      <image:caption>Chloroform - Butanol Reagent - 1996-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-00200-molar-m50-00400-normal-n25-1730-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_729fa76f-1684-4e9c-b6f5-56ac5e479054.png?v=1776328830</image:loc>
      <image:title>Calcium Chloride, 0.0200 Molar (M/50), 0.0400 Normal (N/25) - 1730-16</image:title>
      <image:caption>Calcium Chloride, 0.0200 Molar (M/50), 0.0400 Normal (N/25) - 1730-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-275-wv-1720-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_737e6545-e268-4bad-b50b-e74285760b10.png?v=1776328830</image:loc>
      <image:title>Calcium Chloride, 2.75% (w/v) - 1720-16</image:title>
      <image:caption>Calcium Chloride, 2.75% (w/v) - 1720-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-275-wv-1720-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_6bb7271c-98a0-4ad8-ae87-0f0e42f84198.png?v=1776328830</image:loc>
      <image:title>Calcium Chloride, 2.75% (w/v) - 1720-5</image:title>
      <image:caption>Calcium Chloride, 2.75% (w/v) - 1720-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-00250-molar-m40-00500-normal-n20-1735-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_7489f98a-3f98-4e51-b349-fe820d6e2d96.png?v=1776328833</image:loc>
      <image:title>Calcium Chloride, 0.0250 Molar (M/40), 0.0500 Normal (N/20) - 1735-16</image:title>
      <image:caption>Calcium Chloride, 0.0250 Molar (M/40), 0.0500 Normal (N/20) - 1735-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-ammonium-sulfate-0100-normal-n10-in-1-normal-sulfuric-acid-1890-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_1cdebe3f-6408-415e-a15a-c10f45ee5195.png?v=1776328829</image:loc>
      <image:title>Ceric Ammonium Sulfate, 0.100 Normal (N/10) in 1 Normal Sulfuric Acid - 1890-2.5</image:title>
      <image:caption>Ceric Ammonium Sulfate, 0.100 Normal (N/10) in 1 Normal Sulfuric Acid - 1890-2.5</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cesium-chloride-10-wv-r1913000-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_31c3a272-b998-42bf-9478-bc2cf3f94922.png?v=1776328831</image:loc>
      <image:title>Cesium Chloride, 10% (w/v) - R1913000-500A</image:title>
      <image:caption>Cesium Chloride, 10% (w/v) - R1913000-500A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/borate-buffer-ph-1000-210510-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_6f281a57-b2b7-4f70-9c95-8698e2144f96.png?v=1776328832</image:loc>
      <image:title>Borate Buffer, pH 10.00 - 2105.10-16</image:title>
      <image:caption>Borate Buffer, pH 10.00 - 2105.10-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1000-001-at-25c-1600-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_b1a170f1-067b-43fe-88c8-f9ec40eed9c0.png?v=1776328830</image:loc>
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      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C - 1600-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-918-001-at-25c-1595-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-16</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-10-wv-1722-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_aac9f152-d82a-473c-b4cf-b182b995dd63.png?v=1776328832</image:loc>
      <image:title>Calcium Chloride, 10% (w/v) - 1722-32</image:title>
      <image:caption>Calcium Chloride, 10% (w/v) - 1722-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/citricphosphate-buffer-mcilvaine-ph-320-2114-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_9ff43139-4d5b-47bb-83f3-4f735c19ec02.png?v=1776328836</image:loc>
      <image:title>Citric/Phosphate Buffer, McIlvaine, pH 3.20 - 2114-5</image:title>
      <image:caption>Citric/Phosphate Buffer, McIlvaine, pH 3.20 - 2114-5</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/citrate-buffer-056-mm-r2111720-100a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2117d446-532d-4ada-bb8c-91f675ec0168.png?v=1776328831</image:loc>
      <image:title>Citrate Buffer, 0.56 mM - R2111720-100A</image:title>
      <image:caption>Citrate Buffer, 0.56 mM - R2111720-100A</image:caption>
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  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_01bc9f4b-3cf1-4547-8d46-cce986a5d900.png?v=1776328836</image:loc>
      <image:title>Calcium Chloride, 0.0100 Molar (M/100) - 1728-16</image:title>
      <image:caption>Calcium Chloride, 0.0100 Molar (M/100) - 1728-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromic-acid-10-wv-2077-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_1c376da7-bcd4-4295-bb9c-41d0ad5984dc.png?v=1776328837</image:loc>
      <image:title>Chromic Acid, 10% (w/v) - 2077-16</image:title>
      <image:caption>Chromic Acid, 10% (w/v) - 2077-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromium-standard-3-ppm-cr-in-3-hno3-r2100030-500n</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_289b1bc0-86c9-4549-b454-224aeaaf5f65.png?v=1776328832</image:loc>
      <image:title>Chromium Standard, 3 ppm Cr, in 3% HNO3 - R2100030-500N</image:title>
      <image:caption>Chromium Standard, 3 ppm Cr, in 3% HNO3 - R2100030-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/citricphosphate-buffer-ph-30-r2113800-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_678e6e91-7519-4e57-83b8-feda2c9e3155.png?v=1776328833</image:loc>
      <image:title>Citric/Phosphate buffer, pH 3.0 - R2113800-4A</image:title>
      <image:caption>Citric/Phosphate buffer, pH 3.0 - R2113800-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-918-001-at-25c-1595-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_1e6110df-0cb5-4e2d-b10b-54541023a6cd.png?v=1776328834</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-5</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/carnoys-solution-fixative-r1851000-1c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_1c_7db8f162-14d7-47c1-b0d0-015ad28acc42.png?v=1776328836</image:loc>
      <image:title>Carnoy&apos;s Solution (Fixative) - R1851000-1C</image:title>
      <image:caption>Carnoy&apos;s Solution (Fixative) - R1851000-1C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1000-001-at-25c-1600-1g</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_bbf1a068-ff5c-4f73-adaa-3ebd902f13de.png?v=1776328834</image:loc>
      <image:title>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C - 1600-1G</image:title>
      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C - 1600-1G</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-ammonium-sulfate-015-normal-r1890500-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_bf764415-fd0f-4edd-8368-2987013732df.png?v=1776328835</image:loc>
      <image:title>Ceric Ammonium Sulfate, 0.15 Normal - R1890500-20F</image:title>
      <image:caption>Ceric Ammonium Sulfate, 0.15 Normal - R1890500-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-ammonium-sulfate-0100-normal-n10-in-1-normal-sulfuric-acid-1890-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_9f61e8a6-ab34-4715-8bae-64bded11244c.png?v=1776328833</image:loc>
      <image:title>Ceric Ammonium Sulfate, 0.100 Normal (N/10) in 1 Normal Sulfuric Acid - 1890-5</image:title>
      <image:caption>Ceric Ammonium Sulfate, 0.100 Normal (N/10) in 1 Normal Sulfuric Acid - 1890-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-918-001-at-25c-1595-20</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9cfb963f-9e1d-4ceb-bbcf-da645eef0df8.png?v=1776328833</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-20</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-20</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1000-001-at-25c-1600-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_d7b128ec-3913-4bdf-88b3-7dc89d61ddaf.png?v=1776328831</image:loc>
      <image:title>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C - 1600-32</image:title>
      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C - 1600-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/citrate-buffer-ph-600-210506-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_0e243f1e-dfbc-4344-b5b0-b6dcd08719d4.png?v=1776328833</image:loc>
      <image:title>Citrate Buffer, pH 6.00 - 2105.06-32</image:title>
      <image:caption>Citrate Buffer, pH 6.00 - 2105.06-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-918-001-at-25c-1595-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_2fa58324-7825-4e55-a302-76360c11d2ff.png?v=1776328832</image:loc>
      <image:title>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 9.18 ± 0.01 at 25°C - 1595-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/citricphosphate-buffer-mcilvaine-ph-320-2114-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_2ed48702-417a-4b2e-b25a-8646848af624.png?v=1776328838</image:loc>
      <image:title>Citric/Phosphate Buffer, McIlvaine, pH 3.20 - 2114-2.5</image:title>
      <image:caption>Citric/Phosphate Buffer, McIlvaine, pH 3.20 - 2114-2.5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromic-acid-10-wv-2077-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4c_26bb504f-51a6-4daa-8d76-dedbf1dc2a73.png?v=1776328836</image:loc>
      <image:title>Chromic Acid, 10% (w/v) - 2077-1</image:title>
      <image:caption>Chromic Acid, 10% (w/v) - 2077-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-0100-molar-m10-0200-normal-n5-1760-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_b33fd4b9-3104-4b20-96c7-3458dcda442f.png?v=1776328838</image:loc>
      <image:title>Calcium Chloride, 0.100 Molar (M/10), 0.200 Normal (N/5) - 1760-32</image:title>
      <image:caption>Calcium Chloride, 0.100 Molar (M/10), 0.200 Normal (N/5) - 1760-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chromic-acid-20-wv-2080-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_e503edc3-3d06-4fd1-bd05-3f775a36c116.png?v=1776328835</image:loc>
      <image:title>Chromic Acid, 20% (w/v) - 2080-1</image:title>
      <image:caption>Chromic Acid, 20% (w/v) - 2080-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-hydroxide-ts-saturated-aqueous-solution-1785-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_464a8410-3230-4d25-8bfa-69cdc44fef43.png?v=1776328831</image:loc>
      <image:title>Calcium Hydroxide TS (Saturated Aqueous Solution) - 1785-16</image:title>
      <image:caption>Calcium Hydroxide TS (Saturated Aqueous Solution) - 1785-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/citricphosphate-buffer-mcilvaine-ph-320-2114-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_b8c89e3a-c394-4e80-8adf-3ab91208af9f.png?v=1776328833</image:loc>
      <image:title>Citric/Phosphate Buffer, McIlvaine, pH 3.20 - 2114-1</image:title>
      <image:caption>Citric/Phosphate Buffer, McIlvaine, pH 3.20 - 2114-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/hexavalent-chromium-standard-100-ppm-cr-2095-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-health_500a_cd9bf894-fb94-432e-8cc4-24cda094d492.png?v=1776328838</image:loc>
      <image:title>Hexavalent Chromium Standard, 100 ppm Cr?? - 2095-16</image:title>
      <image:caption>Hexavalent Chromium Standard, 100 ppm Cr?? - 2095-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cesium-chloride-127-mgml-in-01-normal-molar-hydrochloric-acid-1915-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_7d5ffe39-226e-4fc5-8df3-12466dfb999f.png?v=1776328834</image:loc>
      <image:title>Cesium Chloride, 1.27 mg/mL in 0.1 Normal (Molar) Hydrochloric Acid - 1915-16</image:title>
      <image:caption>Cesium Chloride, 1.27 mg/mL in 0.1 Normal (Molar) Hydrochloric Acid - 1915-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1300-001-at-25c-1625-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_7a713504-0c6c-410f-8c6c-8c4756367bc0.png?v=1776328834</image:loc>
      <image:title>Buffer, Reference Standard, pH 13.00 ± 0.01 at 25°C - 1625-1</image:title>
      <image:caption>Buffer, Reference Standard, pH 13.00 ± 0.01 at 25°C - 1625-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-0100-normal-n10-00500-molar-m20-1740-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_473c82ed-0394-4772-a980-05a021ee6036.png?v=1776328833</image:loc>
      <image:title>Calcium Chloride, 0.100 Normal (N/10), 0.0500 Molar (M/20) - 1740-16</image:title>
      <image:caption>Calcium Chloride, 0.100 Normal (N/10), 0.0500 Molar (M/20) - 1740-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-sulfate-0100-normal-n10-in-2-normal-sulfuric-acid-1900-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500a_65366f05-7686-442c-b927-3086ed6d3ada.png?v=1776328833</image:loc>
      <image:title>Ceric Sulfate, 0.100 Normal (N/10) in 2 Normal Sulfuric Acid - 1900-16</image:title>
      <image:caption>Ceric Sulfate, 0.100 Normal (N/10) in 2 Normal Sulfuric Acid - 1900-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-concentrate-5x-ph-1000-001-at-25c-to-be-diluted-with-4-parts-water-before-use-16005-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_c590ad70-2305-4ce6-b259-a23108ab240d.png?v=1776328835</image:loc>
      <image:title>Buffer Concentrate, 5x, pH 10.00 ± 0.01 at 25°C To be diluted with 4 parts Water before use - 1600.5-2.5</image:title>
      <image:caption>Buffer Concentrate, 5x, pH 10.00 ± 0.01 at 25°C To be diluted with 4 parts Water before use - 1600.5-2.5</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_3e34486f-5865-493e-8efa-11cc9833437c.png?v=1776328834</image:loc>
      <image:title>Ceric Sulfate, 0.100 Normal (N/10) in 2 Normal Sulfuric Acid - 1900-32</image:title>
      <image:caption>Ceric Sulfate, 0.100 Normal (N/10) in 2 Normal Sulfuric Acid - 1900-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1000-001-at-25c-1600-25</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_96e41ca0-6103-456f-aa25-2f68c0489be6.png?v=1776328835</image:loc>
      <image:title>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C - 1600-2.5</image:title>
      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C - 1600-2.5</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_4ba100c6-f089-4532-8508-a1331d3326a2.png?v=1776328836</image:loc>
      <image:title>Calcium Chloride, 0.500 Molar (M/2) - R1764000-20F</image:title>
      <image:caption>Calcium Chloride, 0.500 Molar (M/2) - R1764000-20F</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_dc7606ea-4f7c-4660-a9e9-ccfbd5c3fd26.png?v=1776328838</image:loc>
      <image:title>Calcium Chloride TS, 7.5% (w/v) - 1783-16</image:title>
      <image:caption>Calcium Chloride TS, 7.5% (w/v) - 1783-16</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_e9f3622a-e31d-4da4-9078-00ba7364a016.png?v=1776328837</image:loc>
      <image:title>Chloride Color Reagent for Chloride Determination by the Automated Ferricyanide Method - 1940-1</image:title>
      <image:caption>Chloride Color Reagent for Chloride Determination by the Automated Ferricyanide Method - 1940-1</image:caption>
    </image:image>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_fc6ad83f-5f03-4fc0-b01a-fdc39396b3ba.png?v=1776328838</image:loc>
      <image:title>Organic Carbon Standard, 10,000 ppm C - R1849900-500C</image:title>
      <image:caption>Organic Carbon Standard, 10,000 ppm C - R1849900-500C</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_278c4367-6d67-42cd-b69a-a3eaf154673f.png?v=1776328839</image:loc>
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      <image:caption>Calcium Chloride, 0.100 Molar (M/10), 0.200 Normal (N/5) - 1760-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-hydroxide-ts-saturated-aqueous-solution-1785-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_baa3ba1e-672a-4f6c-af04-729092cfbdd9.png?v=1776328837</image:loc>
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      <image:caption>Calcium Hydroxide TS (Saturated Aqueous Solution) - 1785-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/cobalt-standard-5-ppm-co-in-3-hno-r2111005-1n</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_bea71bd0-f439-4aa7-b823-03ffb19efaa5.png?v=1776328844</image:loc>
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      <image:caption>Cobalt Standard, 5 ppm Co in 3% HNO? - R2111005-1N</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1000-001-at-25c-color-coded-blue-1601-20</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d24e6076-eb95-453c-9372-5969b10873f1.png?v=1776328841</image:loc>
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      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C (Color Coded Blue) - 1601-20</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-ammonium-sulfate-0200-normal-n5-r1891000-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_15a4ac89-7c87-49a4-894c-e9d9c80ef906.png?v=1776328841</image:loc>
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      <image:caption>Ceric Ammonium Sulfate, 0.200 Normal (N/5) - R1891000-1A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-solution-540-gl-r1787500-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_a3a258c8-bcd4-4f7f-b20e-1563f0c7bb81.png?v=1776328841</image:loc>
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      <image:caption>Calcium Chloride Solution, 540 g/L - R1787500-4A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-chloride-standard-1000-ppm-caco-400-ppm-ca-00100-m-ca-00200-n-ca-1780-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_98fb04f4-4342-4ab3-acea-c8d6aca56cac.png?v=1776328840</image:loc>
      <image:title>Calcium Chloride Standard, 1000 ppm CaCO? (400 ppm Ca), 0.0100 M Ca²?, 0.0200 N Ca²? - 1780-16</image:title>
      <image:caption>Calcium Chloride Standard, 1000 ppm CaCO? (400 ppm Ca), 0.0100 M Ca²?, 0.0200 N Ca²? - 1780-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chlorate-buffer-r1929500-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_20f_5c059ee8-6afc-48d5-b10a-cd0b8f627a80.png?v=1776328839</image:loc>
      <image:title>Chlorate Buffer - R1929500-20F</image:title>
      <image:caption>Chlorate Buffer - R1929500-20F</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cobalt-standard-10-ppm-co-in-3-hno-r2111010-1n</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_93169835-7584-4fa6-b7e8-46a330fc91aa.png?v=1776328839</image:loc>
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      <image:caption>Cobalt Standard, 10 ppm Co in 3% HNO? - R2111010-1N</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/buffer-reference-standard-ph-1000-001-at-25c-without-preservative-r1600020-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_1d5a918a-92f6-4373-80e8-de666dc8fea8.png?v=1776328840</image:loc>
      <image:title>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C, without preservative - R1600020-500A</image:title>
      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C, without preservative - R1600020-500A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-ammonium-sulfate-0100-normal-n10-in-1-normal-sulfuric-acid-1890-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_ea44e28a-e18e-466e-b0e0-c09fbfec81bb.png?v=1776328841</image:loc>
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      <image:caption>Ceric Ammonium Sulfate, 0.100 Normal (N/10) in 1 Normal Sulfuric Acid - 1890-1</image:caption>
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  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C - 1600-1CT</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calcium-hydroxide-ts-saturated-aqueous-solution-1785-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/caustic-blue-indicator-01-wv-r1859000-50c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Caustic Blue Indicator, 0.1% (w/v) - R1859000-50C</image:caption>
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  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:caption>Calcium Hydroxide TS (Saturated Aqueous Solution) - 1785-8</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chiral-mobile-phase-solution-r1924642-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Chiral Mobile Phase Solution - R1924642-20F</image:title>
      <image:caption>Chiral Mobile Phase Solution - R1924642-20F</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-sulfate-0100-normal-n10-in-2-normal-sulfuric-acid-1900-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_0df92b30-44f9-4a53-b9c9-2d3ae335a237.png?v=1776328840</image:loc>
      <image:title>Ceric Sulfate, 0.100 Normal (N/10) in 2 Normal Sulfuric Acid - 1900-1</image:title>
      <image:caption>Ceric Sulfate, 0.100 Normal (N/10) in 2 Normal Sulfuric Acid - 1900-1</image:caption>
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  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ceric-sulfate-0250-normal-n4-in-approximately-2-normal-sulfuric-acid-1907-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4a_dc37c6e9-fdbc-48e4-bd42-4b6478585f62.png?v=1776328843</image:loc>
      <image:title>Ceric Sulfate, 0.250 Normal (N/4), in approximately 2 Normal Sulfuric Acid - 1907-1</image:title>
      <image:caption>Ceric Sulfate, 0.250 Normal (N/4), in approximately 2 Normal Sulfuric Acid - 1907-1</image:caption>
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  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:caption>Calcium Standard, 10,000 ppm Ca - 1805-16</image:caption>
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  <url>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Chloride Color Reagent for Chloride Determination by the Automated Ferricyanide Method - 1940-32</image:caption>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:caption>Buffer, Reference Standard, pH 10.00 ± 0.01 at 25°C (Color Coded Blue) - 1601-5</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <changefreq>daily</changefreq>
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      <image:caption>Buffer Concentrate, 5x, pH 10.00 ± 0.01 at 25°C To be diluted with 4 parts Water before use - 1600.5-16</image:caption>
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      <image:caption>Citric Acid, 1.00 Molar - 2131-16</image:caption>
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      <image:title>Chloride Standard, 100 ppm Cl? - 1947-16</image:title>
      <image:caption>Chloride Standard, 100 ppm Cl? - 1947-16</image:caption>
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  <url>
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  <url>
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  <url>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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  <url>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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  <url>
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      <image:title>Chloride Standard, 1000 ppm Cl? (0.0282 Normal) - 1955-32</image:title>
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  <url>
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  <url>
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  <url>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Chloride Standard, 1000 ppm Cl? (0.0282 Normal) - 1955-4</image:title>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:caption>Chemical Oxygen Demand Standard, 10,000 ppm COD - R2229100-1A</image:caption>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 70 - R2230070-500C</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/citric-acid-20-wv-2122-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-2-ppm-c-r1844020-1c</loc>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_25fe67f7-2047-428b-9425-3fa8b2782741.png?v=1776328863</image:loc>
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      <image:caption>Chloride/Sulfate IC Standard, 1 ppm Cl, 1 ppm SO? - R1962010-500A</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-5-ppm-c-184405-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_43aa4334-5e5e-4d1d-8471-1894fafc46d0.png?v=1776328863</image:loc>
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      <image:caption>Organic Carbon Standard, 5 ppm C - 1844.05-1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/citric-acid-503-ww-with-5-ppm-iron-r2125503-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_7d9a2574-d4b9-4a5d-9f4b-e0df19ed9493.png?v=1776328867</image:loc>
      <image:title>Citric Acid, 50.3% (w/w), with 5 ppm Iron - R2125503-1A</image:title>
      <image:caption>Citric Acid, 50.3% (w/w), with 5 ppm Iron - R2125503-1A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cobalt-chloride-12-wv-in-10-vv-hydrochloric-acid-2180-16</loc>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500a_c937cd38-55f2-4e5f-9f90-051bc45dc79d.png?v=1776328862</image:loc>
      <image:title>Cobalt Chloride, 1.2% (w/v) in 10% (v/v) Hydrochloric Acid - 2180-16</image:title>
      <image:caption>Cobalt Chloride, 1.2% (w/v) in 10% (v/v) Hydrochloric Acid - 2180-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/colchicine-012-wv-with-05-dmso-r2224000-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Colchicine, 0.12% (w/v) with 0.5% DMSO - R2224000-20F</image:title>
      <image:caption>Colchicine, 0.12% (w/v) with 0.5% DMSO - R2224000-20F</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-500-2230-8</loc>
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    <changefreq>daily</changefreq>
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  <url>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-13000-scm-13-mscm-at-25c-r2246125-10f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Conductivity Standard, 13,000 µS/cm (13 mS/cm) at 25°C - R2246125-10F</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/cobalt-standard-10000-ppm-co-2205-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Cobalt Standard, 10,000 ppm Co - 2205-16</image:title>
      <image:caption>Cobalt Standard, 10,000 ppm Co - 2205-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/chloridesulfate-ic-standard-25-ppm-cl-25-ppm-so-r1962025-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Chloride/Sulfate IC Standard, 2.5 ppm Cl, 2.5 ppm SO? - R1962025-500A</image:title>
      <image:caption>Chloride/Sulfate IC Standard, 2.5 ppm Cl, 2.5 ppm SO? - R1962025-500A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/calmagite-indicator-005-wv-r1828000-100a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_d15b78ea-e675-499c-99bc-6576daed4ad7.png?v=1776328866</image:loc>
      <image:title>Calmagite Indicator, 0.05% (w/v) - R1828000-100A</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-1000-ppm-cl-00282-normal-1955-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-80-r2230080-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 80 - R2230080-500C</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chemical-oxygen-demand-standard-5000-ppm-cod-2229-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_3b29803b-d183-49a8-a663-e3c35e3cbe06.png?v=1776328868</image:loc>
      <image:title>Chemical Oxygen Demand Standard, 5000 ppm COD - 2229-16</image:title>
      <image:caption>Chemical Oxygen Demand Standard, 5000 ppm COD - 2229-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-indicator-eagle-formulation-r1934000-25a5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9113e383-179d-45ce-b9ef-4bef87d660e3.png?v=1776328865</image:loc>
      <image:title>Chloride Indicator Eagle formulation - R1934000-2.5A5</image:title>
      <image:caption>Chloride Indicator Eagle formulation - R1934000-2.5A5</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-200-2230200-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 200 - 2230.200-32</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 200 - 2230.200-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-10-22305-100</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_33221c34-23f3-46a1-a538-07c8164c1d03.png?v=1776328870</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 10 - 2230.5-100</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 10 - 2230.5-100</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-500-2230-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_15324bf6-19b2-4860-b8f6-ea9540f7a95a.png?v=1776328869</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 500 - 2230-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 500 - 2230-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-250-2230250-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_d0e5bba9-26a7-4065-b551-8534a9dd257f.png?v=1776328866</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 250 - 2230.250-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 250 - 2230.250-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-300-2230300-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_7dec1253-1417-43bc-8075-306f6a2b8a93.png?v=1776328864</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 300 - 2230.300-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 300 - 2230.300-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-150-2230150-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120c_14284120-7d22-4e3e-a373-5f0269282072.png?v=1776328866</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 150 - 2230.150-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 150 - 2230.150-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-0005-normal-n200-r1958500-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Chloride Standard, 0.005 Normal (N/200) - R1958500-1A</image:title>
      <image:caption>Chloride Standard, 0.005 Normal (N/200) - R1958500-1A</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Cobaltous Chloride TS, 2% (w/v) in dilute Hydrochloric Acid - 2208-16</image:title>
      <image:caption>Cobaltous Chloride TS, 2% (w/v) in dilute Hydrochloric Acid - 2208-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-0100-normal-n10-100-meql-nacl-1960-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Chloride Standard, 0.100 Normal (N/10), 100 mEq/L NaCl - 1960-5</image:title>
      <image:caption>Chloride Standard, 0.100 Normal (N/10), 100 mEq/L NaCl - 1960-5</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Organic Carbon Standard, 25 ppm C - R1844250-1C</image:title>
      <image:caption>Organic Carbon Standard, 25 ppm C - R1844250-1C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-10000-ppm-cl-0282-normal-1957-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_db8a6386-6615-40ec-9206-e2375421340f.png?v=1776328869</image:loc>
      <image:title>Chloride Standard, 10,000 ppm Cl? (0.282 Normal) - 1957-32</image:title>
      <image:caption>Chloride Standard, 10,000 ppm Cl? (0.282 Normal) - 1957-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-500-ppm-cl-00141-normal-1950-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_2e884bb7-253d-44da-87bb-165a4b33cd7a.png?v=1776328868</image:loc>
      <image:title>Chloride Standard, 500 ppm Cl? (0.0141 Normal) - 1950-4</image:title>
      <image:caption>Chloride Standard, 500 ppm Cl? (0.0141 Normal) - 1950-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-500-ppm-cl-00141-normal-1950-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_886cd369-7adf-4845-a0c3-3fce827a0a62.png?v=1776328867</image:loc>
      <image:title>Chloride Standard, 500 ppm Cl? (0.0141 Normal) - 1950-16</image:title>
      <image:caption>Chloride Standard, 500 ppm Cl? (0.0141 Normal) - 1950-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-1330-scm-at-25c-r2236517-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_32f9f0aa-b593-40ed-8f01-55024bf779af.png?v=1776328870</image:loc>
      <image:title>Conductivity Standard, 1330 µS/cm at 25°C - R2236517-20F</image:title>
      <image:caption>Conductivity Standard, 1330 µS/cm at 25°C - R2236517-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-400-2230400-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1c_6f692199-9958-4992-bbf2-f68f6e87e209.png?v=1776328865</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 400 - 2230.400-32</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 400 - 2230.400-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chemical-oxygen-demand-standard-100-ppm-cod-2227-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_a90e71b7-b8d6-40b9-a32a-e48c99d5f23e.png?v=1776328870</image:loc>
      <image:title>Chemical Oxygen Demand Standard, 100 ppm COD - 2227-16</image:title>
      <image:caption>Chemical Oxygen Demand Standard, 100 ppm COD - 2227-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-10-ppm-cl-19421-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_b2c4e095-02d7-43f7-8bfa-c1a8cce69d86.png?v=1776328869</image:loc>
      <image:title>Chloride Standard, 10 ppm Cl? - 1942.1-32</image:title>
      <image:caption>Chloride Standard, 10 ppm Cl? - 1942.1-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-2-2230002-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_d9c93c3a-80fe-417c-ab75-b34979045130.png?v=1776328868</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 2 - 2230.002-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 2 - 2230.002-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cobaltous-chloride-cs-usp-ep-red-primary-solution-1-ml-595-mg-cocl-6ho-2210-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120c_d7f94670-9749-48f2-ac78-b442c0c638f0.png?v=1776328871</image:loc>
      <image:title>Cobaltous Chloride CS, USP / EP Red Primary Solution 1 mL = 59.5 mg CoCl?·6H?O - 2210-4</image:title>
      <image:caption>Cobaltous Chloride CS, USP / EP Red Primary Solution 1 mL = 59.5 mg CoCl?·6H?O - 2210-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cobaltous-chloride-cs-usp-ep-red-primary-solution-1-ml-595-mg-cocl-6ho-2210-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_2fc085e9-2ef6-4cf8-97d9-7240365a5e39.png?v=1776328868</image:loc>
      <image:title>Cobaltous Chloride CS, USP / EP Red Primary Solution 1 mL = 59.5 mg CoCl?·6H?O - 2210-32</image:title>
      <image:caption>Cobaltous Chloride CS, USP / EP Red Primary Solution 1 mL = 59.5 mg CoCl?·6H?O - 2210-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-1413-scm-at-25c-223652-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_f826aa86-08a0-49d8-b257-a3259b14d545.png?v=1776328870</image:loc>
      <image:title>Conductivity Standard, 1413 µS/cm at 25°C - 2236.52-32</image:title>
      <image:caption>Conductivity Standard, 1413 µS/cm at 25°C - 2236.52-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chemical-oxygen-demand-standard-300-ppm-cod-2228-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_b8dfe324-cfda-4b27-843b-4c5dee0139d5.png?v=1776328874</image:loc>
      <image:title>Chemical Oxygen Demand Standard, 300 ppm COD - 2228-16</image:title>
      <image:caption>Chemical Oxygen Demand Standard, 300 ppm COD - 2228-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-2-2230002-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_e367e356-7de0-43ef-9e20-9350824bd885.png?v=1776328871</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 2 - 2230.002-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 2 - 2230.002-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloridesulfate-ic-standard-5-ppm-cl-5-ppm-so-r1962050-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_60c7bf69-07b5-40fd-99b8-3605c23c90df.png?v=1776328871</image:loc>
      <image:title>Chloride/Sulfate IC Standard, 5 ppm Cl, 5 ppm SO? - R1962050-500A</image:title>
      <image:caption>Chloride/Sulfate IC Standard, 5 ppm Cl, 5 ppm SO? - R1962050-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-1-r2230001-500c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_ea1f769e-ef8c-400f-b1a1-95eaadc84177.png?v=1776328870</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 1 - R2230001-500C</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 1 - R2230001-500C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/organic-carbon-standard-50-ppm-c-184450-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_52eec647-02c2-4b29-899b-803a48f8dcd1.png?v=1776328869</image:loc>
      <image:title>Organic Carbon Standard, 50 ppm C - 1844.50-32</image:title>
      <image:caption>Organic Carbon Standard, 50 ppm C - 1844.50-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-300-2230300-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1c_610aa3cf-d22a-44ac-b27d-b5c0087d0be8.png?v=1776328870</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 300 - 2230.300-32</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 300 - 2230.300-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chemical-oxygen-demand-standard-10000-ppm-cod-r2229100-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_1cc46f89-067b-489f-9e43-4a96559d5b4e.png?v=1776328868</image:loc>
      <image:title>Chemical Oxygen Demand Standard, 10,000 ppm COD - R2229100-500A</image:title>
      <image:caption>Chemical Oxygen Demand Standard, 10,000 ppm COD - R2229100-500A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-500-2230-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1c_44cc4741-86b8-4560-bf8f-e81b37347403.png?v=1776328869</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 500 - 2230-32</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 500 - 2230-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-10-22305-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_506e5437-e82c-46b7-86f7-5e7f15a6e900.png?v=1776328872</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 10 - 2230.5-32</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 10 - 2230.5-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloridesulfate-ic-standard-2-ppm-cl-2-ppm-so-r1962020-50a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_97f846cc-35a8-4976-b90f-e445c8286ab5.png?v=1776328872</image:loc>
      <image:title>Chloride/Sulfate IC Standard, 2 ppm Cl, 2 ppm SO? - R1962020-50A</image:title>
      <image:caption>Chloride/Sulfate IC Standard, 2 ppm Cl, 2 ppm SO? - R1962020-50A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-100000-ppm-cl-282-normal-1956-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_ea3172f8-3f7e-4cd1-9122-88ec55b51682.png?v=1776328874</image:loc>
      <image:title>Chloride Standard, 100,000 ppm Cl? (2.82 Normal) - 1956-16</image:title>
      <image:caption>Chloride Standard, 100,000 ppm Cl? (2.82 Normal) - 1956-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-350-2230350-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_c7821e94-e04d-47fd-8058-78906bab0fbb.png?v=1776328872</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 350 - 2230.350-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 350 - 2230.350-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-150-2230150-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_85c9049a-d6c2-456d-b673-b441a46e9d72.png?v=1776328870</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 150 - 2230.150-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 150 - 2230.150-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-500-2230-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_120c_bf204892-6ad5-4d1e-9ce9-cf01f2516c78.png?v=1776328875</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 500 - 2230-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 500 - 2230-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-10-22305-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_3ba8d02c-6e93-4d45-82c2-363441ab1a07.png?v=1776328872</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 10 - 2230.5-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 10 - 2230.5-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-11030-scm-1103-mscm-at-25c-r2246110-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_5a1b5397-0aa0-46a9-a507-9921acc6a97e.png?v=1776328872</image:loc>
      <image:title>Conductivity Standard, 11,030 µS/cm (11.03 mS/cm) at 25°C - R2246110-20F</image:title>
      <image:caption>Conductivity Standard, 11,030 µS/cm (11.03 mS/cm) at 25°C - R2246110-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-15-2230015-8</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_983acd1e-4146-415b-bede-c26a549d5131.png?v=1776328874</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 15 - 2230.015-8</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 15 - 2230.015-8</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-20000-ppm-cl-r1955200-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_d01b0843-0200-4779-a7f0-24b08fc7f20f.png?v=1776328871</image:loc>
      <image:title>Chloride Standard, 20,000 ppm Cl? - R1955200-1A</image:title>
      <image:caption>Chloride Standard, 20,000 ppm Cl? - R1955200-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cleaning-solution-chromic-sulfuric-acid-solution-for-cleaning-laboratory-glassware-2150-5pt</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_be8e451e-55a1-4c1d-95b6-86a22b7d00d8.png?v=1776328878</image:loc>
      <image:title>Cleaning Solution, Chromic-Sulfuric Acid Solution for Cleaning Laboratory Glassware - 2150-5PT</image:title>
      <image:caption>Cleaning Solution, Chromic-Sulfuric Acid Solution for Cleaning Laboratory Glassware - 2150-5PT</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-450-2230450-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_b52e7b15-7a6b-4e7d-abfc-4f22bb5b9469.png?v=1776328874</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 450 - 2230.450-16</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-10-22305-1</loc>
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      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 10 - 2230.5-1</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 10 - 2230.5-1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-5-2230005-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_60bbda23-a69f-4f58-8d25-e69be21fd0ba.png?v=1776328875</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 5 - 2230.005-1</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 5 - 2230.005-1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/chemical-oxygen-demand-standard-300-ppm-cod-2228-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_55d9c25d-d21c-4e0f-905b-12ca874e3b2a.png?v=1776328874</image:loc>
      <image:title>Chemical Oxygen Demand Standard, 300 ppm COD - 2228-32</image:title>
      <image:caption>Chemical Oxygen Demand Standard, 300 ppm COD - 2228-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-3-2230003-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_2fef5248-bd3a-43ec-a10b-18b5dbf56d00.png?v=1776328874</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 3 - 2230.003-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 3 - 2230.003-4</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-400-2230400-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 400 - 2230.400-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 400 - 2230.400-4</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-stock-apha-500-modified-r2229950-1c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Color Standard Stock, APHA 500, Modified - R2229950-1C</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-450-2230450-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_120c_6a0760a8-be6e-4662-b6c9-b85f80749eed.png?v=1776328879</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 450 - 2230.450-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 450 - 2230.450-4</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloridesulfate-ic-standard-2-ppm-cl-2-ppm-so-r1962020-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_582d830d-2d92-44db-93a3-155c5edbe418.png?v=1776328876</image:loc>
      <image:title>Chloride/Sulfate IC Standard, 2 ppm Cl, 2 ppm SO? - R1962020-500A</image:title>
      <image:caption>Chloride/Sulfate IC Standard, 2 ppm Cl, 2 ppm SO? - R1962020-500A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-10000-ppm-cl-0282-normal-1957-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_b5d92ac0-6317-488a-b3d5-694e1310c291.png?v=1776328877</image:loc>
      <image:title>Chloride Standard, 10,000 ppm Cl? (0.282 Normal) - 1957-16</image:title>
      <image:caption>Chloride Standard, 10,000 ppm Cl? (0.282 Normal) - 1957-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-100000-ppm-cl-282-normal-1956-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_007733ce-baad-4e27-805b-ec94efc1c7f7.png?v=1776328875</image:loc>
      <image:title>Chloride Standard, 100,000 ppm Cl? (2.82 Normal) - 1956-32</image:title>
      <image:caption>Chloride Standard, 100,000 ppm Cl? (2.82 Normal) - 1956-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-13730-scm-1373-mscm-at-25c-r2246137-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Conductivity Standard, 13,730 µS/cm (13.73 mS/cm) at 25°C - R2246137-20F</image:title>
      <image:caption>Conductivity Standard, 13,730 µS/cm (13.73 mS/cm) at 25°C - R2246137-20F</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-1000-2231-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_65461e12-d200-4824-b11b-4f15027aca32.png?v=1776328875</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 1000 - 2231-16</image:title>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-1413-scm-at-25c-223652-16</loc>
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      <image:title>Conductivity Standard, 1413 µS/cm at 25°C - 2236.52-16</image:title>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-400-2230400-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 400 - 2230.400-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 400 - 2230.400-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-1330-scm-at-25c-r2236517-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Conductivity Standard, 1330 µS/cm at 25°C - R2236517-1A</image:title>
      <image:caption>Conductivity Standard, 1330 µS/cm at 25°C - R2236517-1A</image:caption>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Conductivity Standard, 13,000 µS/cm (13 mS/cm) at 25°C - R2246125-1A</image:title>
      <image:caption>Conductivity Standard, 13,000 µS/cm (13 mS/cm) at 25°C - R2246125-1A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-13000-scm-13-mscm-at-25c-r2246125-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Conductivity Standard, 13,000 µS/cm (13 mS/cm) at 25°C - R2246125-20F</image:title>
      <image:caption>Conductivity Standard, 13,000 µS/cm (13 mS/cm) at 25°C - R2246125-20F</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-reagent-for-nitrate-determination-2233-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_120c_8da21d6e-2011-49f6-9660-a6f27198dc5d.png?v=1776328879</image:loc>
      <image:title>Color Reagent, for Nitrate Determination - 2233-4</image:title>
      <image:caption>Color Reagent, for Nitrate Determination - 2233-4</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-1413-scm-at-25c-223652-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Conductivity Standard, 1413 µS/cm at 25°C - 2236.52-1</image:title>
      <image:caption>Conductivity Standard, 1413 µS/cm at 25°C - 2236.52-1</image:caption>
    </image:image>
  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 90 - R2230090-500C</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 90 - R2230090-500C</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-5000-ppm-cl-1958-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_c4841be3-8ab6-497c-b32a-c45dd47b87ad.png?v=1776328879</image:loc>
      <image:title>Chloride Standard, 5000 ppm Cl? - 1958-16</image:title>
      <image:caption>Chloride Standard, 5000 ppm Cl? - 1958-16</image:caption>
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  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Conductivity Standard, 1500 µS/cm at 25°C - 2236.53-32</image:title>
      <image:caption>Conductivity Standard, 1500 µS/cm at 25°C - 2236.53-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-5-2230005-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8004170c-a6f4-4012-86d4-78e96931a910.png?v=1776328881</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 5 - 2230.005-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 5 - 2230.005-4</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-3-2230003-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 3 - 2230.003-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 3 - 2230.003-16</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-300-2230300-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
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      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 300 - 2230.300-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 300 - 2230.300-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-reagent-for-nitrate-determination-2233-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1c_08f4b3ad-e035-4681-b443-87ed0ee64308.png?v=1776328881</image:loc>
      <image:title>Color Reagent, for Nitrate Determination - 2233-32</image:title>
      <image:caption>Color Reagent, for Nitrate Determination - 2233-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-250-scm-at-25c-223660-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Conductivity Standard, 250 µS/cm at 25°C - 2236.60-32</image:title>
      <image:caption>Conductivity Standard, 250 µS/cm at 25°C - 2236.60-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-200-2230200-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 200 - 2230.200-1</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 200 - 2230.200-1</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-1413-scm-at-25c-223652-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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      <image:title>Conductivity Standard, 1413 µS/cm at 25°C - 2236.52-5</image:title>
      <image:caption>Conductivity Standard, 1413 µS/cm at 25°C - 2236.52-5</image:caption>
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  </url>
  <url>
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    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_218ce58b-2852-4fca-9fef-d24d0591b6ee.png?v=1776328880</image:loc>
      <image:title>Combination pH / Conductivity Standard, pH 4.01 and 4.49 mS/cm at 25°C - 2232.5-16</image:title>
      <image:caption>Combination pH / Conductivity Standard, pH 4.01 and 4.49 mS/cm at 25°C - 2232.5-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-15-2230015-100</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a12cdb3e-8f07-4471-b553-4374f2b271b1.png?v=1776328880</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 15 - 2230.015-100</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 15 - 2230.015-100</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-10-scm-at-25c-47-ppm-tds-as-nacl-2236-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_d3941df8-3844-4351-a2cb-24b312c59104.png?v=1776328883</image:loc>
      <image:title>Conductivity Standard, 10 µS/cm at 25°C (4.7 ppm TDS as NaCl) - 2236-1</image:title>
      <image:caption>Conductivity Standard, 10 µS/cm at 25°C (4.7 ppm TDS as NaCl) - 2236-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/chloride-standard-0100-normal-n10-100-meql-nacl-1960-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_5402dbaf-c306-4c65-ad20-27743fa2cd16.png?v=1776328886</image:loc>
      <image:title>Chloride Standard, 0.100 Normal (N/10), 100 mEq/L NaCl - 1960-32</image:title>
      <image:caption>Chloride Standard, 0.100 Normal (N/10), 100 mEq/L NaCl - 1960-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-13730-scm-1373-mscm-at-25c-r2246137-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_718c33c8-2756-467c-8363-5a1276dadf1d.png?v=1776328880</image:loc>
      <image:title>Conductivity Standard, 13,730 µS/cm (13.73 mS/cm) at 25°C - R2246137-4A</image:title>
      <image:caption>Conductivity Standard, 13,730 µS/cm (13.73 mS/cm) at 25°C - R2246137-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-250-2230250-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_5dba0174-0c1a-4a8d-a674-3f80a8a5c357.png?v=1776328882</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 250 - 2230.250-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 250 - 2230.250-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-20-2230020-100</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_9480ccb6-2ee1-459a-81b7-cad6ddfe33f7.png?v=1776328881</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 20 - 2230.020-100</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 20 - 2230.020-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/phcondturbidity-std-ph-401-449-ms-0-ntu-22326-5</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_3f7cbe49-b81d-4683-81b8-1018a1cb77f0.png?v=1776328881</image:loc>
      <image:title>pH/Cond/turbidity Std, pH 4.01, 4.49 mS, 0 NTU - 2232.6-5</image:title>
      <image:caption>pH/Cond/turbidity Std, pH 4.01, 4.49 mS, 0 NTU - 2232.6-5</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-14200-scm-142-mscm-at-25c-r2246142-1a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_a96e0d4d-35ca-41c5-bdc6-6ce06e173b79.png?v=1776328881</image:loc>
      <image:title>Conductivity Standard, 14,200 µS/cm (14.2 mS/cm) at 25°C - R2246142-1A</image:title>
      <image:caption>Conductivity Standard, 14,200 µS/cm (14.2 mS/cm) at 25°C - R2246142-1A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-13000-scm-13-mscm-at-25c-r2246125-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_c7bc916c-2b8c-432e-8855-33942960df40.png?v=1776328882</image:loc>
      <image:title>Conductivity Standard, 13,000 µS/cm (13 mS/cm) at 25°C - R2246125-4A</image:title>
      <image:caption>Conductivity Standard, 13,000 µS/cm (13 mS/cm) at 25°C - R2246125-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-14380-scm-1438-mscm-at-25c-r2246144-10f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_10f_1fe9ebb6-b392-4ec1-9968-806ee83c327b.png?v=1776328882</image:loc>
      <image:title>Conductivity Standard, 14,380 µS/cm (14.38 mS/cm) at 25°C - R2246144-10F</image:title>
      <image:caption>Conductivity Standard, 14,380 µS/cm (14.38 mS/cm) at 25°C - R2246144-10F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-20-2230020-1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4c_3300f404-309b-4d95-87f8-fdbdc7a6628c.png?v=1776328882</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 20 - 2230.020-1</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 20 - 2230.020-1</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-4-2230004-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_a22f4250-7a16-49d3-a2ab-543ca6906b5c.png?v=1776328886</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 4 - 2230.004-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 4 - 2230.004-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-15-2230015-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1c_ea912890-88b4-4bb4-9594-e0bd0b1acf71.png?v=1776328886</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 15 - 2230.015-32</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 15 - 2230.015-32</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-200-2230200-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_8f8fedb5-206d-407f-8184-75f74a972b0a.png?v=1776328885</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 200 - 2230.200-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 200 - 2230.200-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-60000-scm-60-mscm-at-20c-22346-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_c81357dc-f770-4a44-96e7-9cff042879a8.png?v=1776328892</image:loc>
      <image:title>Conductivity Standard, 60,000 µS/cm (60 mS/cm) at 20°C - 2234.6-16</image:title>
      <image:caption>Conductivity Standard, 60,000 µS/cm (60 mS/cm) at 20°C - 2234.6-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-15-2230015-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_284b7676-d683-49e8-bc3f-41d648b7084e.png?v=1776328883</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 15 - 2230.015-16</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 15 - 2230.015-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-350-2230350-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_120c_c7e225e0-5492-49e9-a485-3a61a3e43b31.png?v=1776328888</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 350 - 2230.350-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 350 - 2230.350-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-1000-2231-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_8bcf4d3d-83d6-4e63-ada6-e0f556f92dd3.png?v=1776328885</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 1000 - 2231-4</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 1000 - 2231-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-1500-scm-at-25c-223653-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_9b37f0e7-33b6-401d-bcb2-3b33b13762ae.png?v=1776328885</image:loc>
      <image:title>Conductivity Standard, 1500 µS/cm at 25°C - 2236.53-16</image:title>
      <image:caption>Conductivity Standard, 1500 µS/cm at 25°C - 2236.53-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-10-scm-at-25c-47-ppm-tds-as-nacl-2236-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_8db8d6b2-c1e4-4cf2-8018-f71ab440abe9.png?v=1776328884</image:loc>
      <image:title>Conductivity Standard, 10 µS/cm at 25°C (4.7 ppm TDS as NaCl) - 2236-4</image:title>
      <image:caption>Conductivity Standard, 10 µS/cm at 25°C (4.7 ppm TDS as NaCl) - 2236-4</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-250-scm-at-25c-223660-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_dd2db0d1-9ee9-4009-8070-5ada97fa09f3.png?v=1776328891</image:loc>
      <image:title>Conductivity Standard, 250 µS/cm at 25°C - 2236.60-16</image:title>
      <image:caption>Conductivity Standard, 250 µS/cm at 25°C - 2236.60-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-40000-scm-40-mscm-at-25c-223675-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_18dbbabe-17c5-41de-a77d-b0f61895c5ae.png?v=1776328886</image:loc>
      <image:title>Conductivity Standard, 40,000 µS/cm (40 mS/cm) at 25°C - 2236.75-16</image:title>
      <image:caption>Conductivity Standard, 40,000 µS/cm (40 mS/cm) at 25°C - 2236.75-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-1330-scm-at-25c-r2236517-4a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_c383994f-ca81-4305-be53-c74c28c8c9e1.png?v=1776328891</image:loc>
      <image:title>Conductivity Standard, 1330 µS/cm at 25°C - R2236517-4A</image:title>
      <image:caption>Conductivity Standard, 1330 µS/cm at 25°C - R2236517-4A</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-30-2230030-100</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_6ec9ed1f-069d-490c-9ea6-65c51261f706.png?v=1776328886</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 30 - 2230.030-100</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 30 - 2230.030-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-40-r2230040-120c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120c_1b403f38-1681-4a72-b9f8-74e42eeab9b2.png?v=1776328884</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 40 - R2230040-120C</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 40 - R2230040-120C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-50-2230050-100</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_41d750ac-63f5-479f-8851-38acd6b9d64d.png?v=1776328885</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 50 - 2230.050-100</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 50 - 2230.050-100</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-standard-apha-hazen-platinum-cobalt-color-60-r2230060-100c</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_88e46258-f56b-467e-95cd-e2d7e24a4914.png?v=1776328887</image:loc>
      <image:title>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 60 - R2230060-100C</image:title>
      <image:caption>Color Standard, APHA / Hazen (Platinum-Cobalt), Color = 60 - R2230060-100C</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-1300-scm-at-25c-r2236516-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_12589c56-a450-4b4f-a41b-47a5742763be.png?v=1776328885</image:loc>
      <image:title>Conductivity Standard, 1300 µS/cm at 25°C - R2236516-20F</image:title>
      <image:caption>Conductivity Standard, 1300 µS/cm at 25°C - R2236516-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/color-reagent-for-nitrate-determination-2233-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_500c_7bafe7f7-07bf-4981-abc8-1c5f4a2131be.png?v=1776328885</image:loc>
      <image:title>Color Reagent, for Nitrate Determination - 2233-16</image:title>
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      <image:caption>Conductivity Standard, 14,000 µS/cm (14 mS/cm) at 25°C - R2246141-500A</image:caption>
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      <image:caption>Conductivity Standard, 52,000 µS/cm (52 mS/cm) at 25°C - 2236.95-16</image:caption>
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      <image:caption>Conductivity Standard, 30,000 µS/cm (30 mS/cm) at 25°C - 2236.88-1</image:caption>
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      <image:title>Conductivity Standard, 14,380 µS/cm (14.38 mS/cm) at 25°C - R2246144-4A</image:title>
      <image:caption>Conductivity Standard, 14,380 µS/cm (14.38 mS/cm) at 25°C - R2246144-4A</image:caption>
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  <url>
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  <url>
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  <url>
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      <image:title>Conductivity Standard, 1300 µS/cm at 25°C - R2236516-1A</image:title>
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      <image:caption>Conductivity Standard, 14,960 µS/cm (14.96 mS/cm) at 25°C - R2246153-20F</image:caption>
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      <image:caption>Conductivity Standard, 16,500 µS/cm (16.5 mS/cm) at 25°C - R2246169-4A</image:caption>
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      <image:caption>Conductivity Standard, 16,630 µS/cm (16.63 mS/cm) at 25°C (9100 ppm TDS as NaCl) - 2246.17-32</image:caption>
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      <image:caption>Conductivity Standard, 30,000 µS/cm (30 mS/cm) at 25°C - 2236.88-32</image:caption>
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      <image:caption>Conductivity Standard, 100 µS/cm at 25°C (47.2 ppm TDS as NaCl) - 2237-20</image:caption>
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      <image:caption>Conductivity Standard, 52,000 µS/cm (52 mS/cm) at 25°C - 2236.95-32</image:caption>
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      <image:caption>Conductivity Standard, 18,000 µS/cm (18 mS/cm) at 25°C - 2246.80-16</image:caption>
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      <image:caption>Conductivity Standard, 14,200 µS/cm (14.2 mS/cm) at 25°C - R2246142-20F</image:caption>
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      <image:caption>Conductivity Standard, 445 µS/cm at 25°C (213 ppm TDS as NaCl) - 2240.45-32</image:caption>
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      <image:caption>Conductivity Standard, 16,630 µS/cm (16.63 mS/cm) at 25°C (9100 ppm TDS as NaCl) - 2246.17-16</image:caption>
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      <image:caption>Conductivity Standard, 100 µS/cm at 25°C (47.2 ppm TDS as NaCl) - 2237-5</image:caption>
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      <image:caption>Conductivity Standard, 100 µS/cm at 25°C (47.2 ppm TDS as NaCl) - 2237-32</image:caption>
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      <image:caption>Conductivity Standard, 445 µS/cm at 25°C (213 ppm TDS as NaCl) - 2240.45-16</image:caption>
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      <image:title>Conductivity Standard, 50,000 µS/cm (50 mS/cm) at 25°C (30,300 ppm TDS as NaCl) - 2248-5</image:title>
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      <image:caption>Conductivity Standard, 23.8 µS/cm at 25°C (11.2 ppm TDS as NaCl) - 2236.06-1</image:caption>
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      <image:caption>Conductivity Standard, 70 µS/cm at 25°C (33.0 ppm TDS as NaCl) - 2236.14-16</image:caption>
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      <image:caption>Conductivity Standard, 30,100 µS/cm (30.1 mS/cm) at 25°C (17,200 ppm TDS as NaCl) - 2247.30-16</image:caption>
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      <image:caption>Conductivity Standard, 100,000 µS/cm (100 mS/cm) at 25°C 65,750 ppm TDS as NaCl - 2249-5</image:caption>
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      <image:caption>Conductivity Standard, 80,000 µS/cm (80 mS/cm) at 25°C - 2248.80-16</image:caption>
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      <image:caption>Conductivity Standard, 150 µS/cm at 25°C (71 ppm TDS as NaCl) - 2236.25-16</image:caption>
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      <image:title>Copper Sulfate Solution, Specific Gravity 1.186, for UL Corrosion Test - 2348-1</image:title>
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      <image:title>Copper Sulfate, 0.0100 Molar (M/100) - 2347-1</image:title>
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      <image:title>Cupric Sulfate CS, USP / EP Blue Primary Solution 1 mL = 62.4 mg CuSO?·5H?O - 2495-32</image:title>
      <image:caption>Cupric Sulfate CS, USP / EP Blue Primary Solution 1 mL = 62.4 mg CuSO?·5H?O - 2495-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/cupriethylenediamine-1-molar-2499-1</loc>
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    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_4c_e36b1a33-6f92-49fa-b6a3-f2c679886425.png?v=1776328962</image:loc>
      <image:title>Cupriethylenediamine, 1 Molar - 2499-1</image:title>
      <image:caption>Cupriethylenediamine, 1 Molar - 2499-1</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/cupriethylenediamine-05-molar-m2-2498-32</loc>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1c_1c6678b0-8f42-46a9-96f0-c050c84f26c0.png?v=1776328967</image:loc>
      <image:title>Cupriethylenediamine, 0.5 Molar (M/2) - 2498-32</image:title>
      <image:caption>Cupriethylenediamine, 0.5 Molar (M/2) - 2498-32</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-8000-scm-at-25c-22458-1</loc>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_66493a84-3f93-47fd-936d-e9b120d2893c.png?v=1776328964</image:loc>
      <image:title>Conductivity Standard, 8000 µS/cm at 25°C - 2245.8-1</image:title>
      <image:caption>Conductivity Standard, 8000 µS/cm at 25°C - 2245.8-1</image:caption>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_34e32f49-271d-45f3-b828-6ccee892a04a.png?v=1776328964</image:loc>
      <image:title>Conductivity Standard, 10,000 µS/cm (10 mS/cm) at 25°C 5400 ppm TDS as NaCl - 2246-20</image:title>
      <image:caption>Conductivity Standard, 10,000 µS/cm (10 mS/cm) at 25°C 5400 ppm TDS as NaCl - 2246-20</image:caption>
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    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500c_c3a10043-1065-4fb2-b1c4-004516c7c566.png?v=1776328964</image:loc>
      <image:title>Cupric Sulfate CS, USP / EP Blue Primary Solution 1 mL = 62.4 mg CuSO?·5H?O - 2495-16</image:title>
      <image:caption>Cupric Sulfate CS, USP / EP Blue Primary Solution 1 mL = 62.4 mg CuSO?·5H?O - 2495-16</image:caption>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_8ee1bb93-4dd9-4a52-9a34-c29d4781d2cd.png?v=1776328964</image:loc>
      <image:title>Copper Standard, 0.5 ppm Cu in 12.5% (v/v) Ethanol - R2279050-500A</image:title>
      <image:caption>Copper Standard, 0.5 ppm Cu in 12.5% (v/v) Ethanol - R2279050-500A</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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      <image:title>Conductivity Standard, 3000 µS/cm at 25°C (1534 ppm TDS as NaCl) - 2244.50-16</image:title>
      <image:caption>Conductivity Standard, 3000 µS/cm at 25°C (1534 ppm TDS as NaCl) - 2244.50-16</image:caption>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_3810cd13-1663-4806-a084-6a3a47c357c6.png?v=1776328966</image:loc>
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      <image:caption>Cupric Nitrate, 0.100 Molar - R2493500-500A</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-buffer-r2265000-20e1</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_c68df7df-5d3c-4392-bb1b-a2dfea4d4251.png?v=1776328967</image:loc>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_4a_f16a1bd2-c6cd-4029-ba6f-98afea81782b.png?v=1776328965</image:loc>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/decalcifying-solution-krajian-for-decalcification-of-bones-2545-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_1a_d3da362c-f854-4da4-b406-151768b8c7a8.png?v=1776328967</image:loc>
      <image:title>Decalcifying Solution, Krajian, for Decalcification of Bones - 2545-32</image:title>
      <image:caption>Decalcifying Solution, Krajian, for Decalcification of Bones - 2545-32</image:caption>
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  <url>
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    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-flammable_4c_e3a160ea-3e13-4ac9-8d2e-7d78bbcc38b4.png?v=1776328967</image:loc>
      <image:title>Cyclohexylamine, 0.100 Normal (N/10) in Methanol - R2544600-4C</image:title>
      <image:caption>Cyclohexylamine, 0.100 Normal (N/10) in Methanol - R2544600-4C</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cure-reagent-b-ned-02-g150-ml-in-15-vv-acetic-acid-r2511020-120b</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-corrosive_120b_f923f049-5f4e-4d26-9de3-82339645bd39.png?v=1776328962</image:loc>
      <image:title>Cure Reagent B NED, 0.2 g/150 mL in 15% (v/v) Acetic Acid - R2511020-120B</image:title>
      <image:caption>Cure Reagent B NED, 0.2 g/150 mL in 15% (v/v) Acetic Acid - R2511020-120B</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cresol-red-thymol-blue-ts-2455-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Cresol Red-Thymol Blue TS - 2455-4</image:title>
      <image:caption>Cresol Red-Thymol Blue TS - 2455-4</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/nacl-cond-std-1079-mscm-r2246108-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_20f_2f3dcd8c-805a-4ccd-abb1-0f040fe56872.png?v=1776328968</image:loc>
      <image:title>NaCl Cond Std, 10.79 mS/cm - R2246108-20F</image:title>
      <image:caption>NaCl Cond Std, 10.79 mS/cm - R2246108-20F</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cupri-citric-solution-r-2492-4</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_120a_404c0f3f-892d-4a21-88d6-f24032dd7bf3.png?v=1776328968</image:loc>
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      <image:caption>Cupri-Citric Solution R - 2492-4</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/conductivity-standard-10000-scm-10-mscm-at-25c-5400-ppm-tds-as-nacl-2246-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Conductivity Standard, 10,000 µS/cm (10 mS/cm) at 25°C 5400 ppm TDS as NaCl - 2246-16</image:title>
      <image:caption>Conductivity Standard, 10,000 µS/cm (10 mS/cm) at 25°C 5400 ppm TDS as NaCl - 2246-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cresol-red-thymol-blue-indicator-2454-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_1a_8c4319f0-8802-4178-9213-27a315fc7acb.png?v=1776328968</image:loc>
      <image:title>Cresol Red-Thymol Blue Indicator - 2454-32</image:title>
      <image:caption>Cresol Red-Thymol Blue Indicator - 2454-32</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-standard-10-ppm-cu-in-125-vv-ethanol-r2279100-500a</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-general_500a_2dda7163-056c-4012-b1fb-0a346e536747.png?v=1776328967</image:loc>
      <image:title>Copper Standard, 1.0 ppm Cu in 12.5% (v/v) Ethanol - R2279100-500A</image:title>
      <image:caption>Copper Standard, 1.0 ppm Cu in 12.5% (v/v) Ethanol - R2279100-500A</image:caption>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-aa-standard-10-ppm-cu-in-5-hcl-r2286200-500n</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
    <image:image>
      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_cc6631e9-f86c-4cf9-bef2-0217bf752d1e.png?v=1776328966</image:loc>
      <image:title>Copper AA Standard, 10 ppm Cu in 5% HCl - R2286200-500N</image:title>
      <image:caption>Copper AA Standard, 10 ppm Cu in 5% HCl - R2286200-500N</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/eriochrome-black-t-indicator-1-ww-in-sodium-chloride-2900-250</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:loc>https://cdn.shopify.com/s/files/1/0757/2327/6437/files/ricca-standards_dfccdbad-1db0-457a-854f-7733a0228870.png?v=1776328967</image:loc>
      <image:title>Eriochrome Black T Indicator, 1% (w/w) in Sodium Chloride - 2900-250</image:title>
      <image:caption>Eriochrome Black T Indicator, 1% (w/w) in Sodium Chloride - 2900-250</image:caption>
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  </url>
  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Conductivity Standard, 10,000 µS/cm (10 mS/cm) at 25°C 5400 ppm TDS as NaCl - 2246-100P</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/copper-standard-200-ppm-cu-2295-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Copper Standard, 200 ppm Cu - 2295-16</image:title>
      <image:caption>Copper Standard, 200 ppm Cu - 2295-16</image:caption>
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  <url>
    <loc>https://labproinc2.myshopify.com/products/decalcifying-solution-krajian-for-decalcification-of-bones-2545-16</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:caption>Decalcifying Solution, Krajian, for Decalcification of Bones - 2545-16</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/ethanol-80-vv-denatured-technical-r2546810-20f</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  </url>
  <url>
    <loc>https://labproinc2.myshopify.com/products/cupriethylenediamine-1-molar-2499-32</loc>
    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Cupriethylenediamine, 1 Molar - 2499-32</image:title>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
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    <changefreq>daily</changefreq>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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  <url>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Cuprous Chloride Reagent, Acid Carbon Monoxide Absorbent for Orsat Gas Analysis - 2500-32</image:title>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Ferric Chloride, 100% (w/v)  (100 g + 40 mL Water) - 3130-4</image:title>
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    <lastmod>2026-07-21T12:31:01-07:00</lastmod>
    <changefreq>daily</changefreq>
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      <image:title>Eriochrome Black T, 0.4 g/L in 90% Alcohol - R2896000-500C</image:title>
      <image:caption>Eriochrome Black T, 0.4 g/L in 90% Alcohol - R2896000-500C</image:caption>
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