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Whether you're determining unknown substances or calibrating analytical instruments, you will need certified laboratory standard solutions. Here at Lab Pro, our standards aim to increase lab efficiency and help users achieve more accurate results. Browse through our standards selection ranging from water-soluble ammonium sulfamate to phenacetin powder.
If you need laboratory standards in bulk, don't hesitate to reach us at 888-4-LABPRO (888-452-2776). We also offer next-day service in California and same-day service for will-calls.
Chemicals & Reagents
Reference Standards
Ammonia Nitrogen Standard, 10,000 ppm N (12,160 ppm NH?) - R5455900-500A
Ammonia Nitrogen Standard, 10,000 ppm N (12,160 ppm NH?) - R5455900-500ASize:500 mL Poly naturalCAS Number:7732-18-5,12125-02-9
Nitrate Nitrogen Standard, 10 ppm N (44.27 ppm NO??) - 5456-16
Nitrate Nitrogen Standard, 10 ppm N (44.27 ppm NO??) - 5456-16Size:500 mL Poly naturalCAS Number:7732-18-5,67-66-3,7757-79-1
Nitrite Nitrogen Standard, 250 ppm N (821 ppm NO??) - 5460-4
Nitrite Nitrogen Standard, 250 ppm N (821 ppm NO??) - 5460-4Size:120 mL Poly naturalCAS Number:7732-18-5,67-66-3,7632-00-0
Nitrate Nitrogen Standard, 1000 ppm N (4427 ppm NO??) - 5459-16
Nitrate Nitrogen Standard, 1000 ppm N (4427 ppm NO??) - 5459-16Size:500 mL Poly naturalCAS Number:7732-18-5,7757-79-1,67-66-3
ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-32
ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-32Size:1 L Glass amberCAS Number:7732-18-5,7447-40-7,14459-95-1,13746-66-2
Nitrite Nitrogen Standard, 100 ppm N (328.5 ppm NO??) - 5461.1-32
Nitrite Nitrogen Standard, 100 ppm N (328.5 ppm NO??) - 5461.1-32Size:1 L Glass amberCAS Number:7732-18-5,67-66-3,7758-09-0
ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-5
ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-5Size:20 L CubitainerCAS Number:7732-18-5,7447-40-7,14459-95-1,13746-66-2
Nitrite Nitrogen Standard, 100 ppm N (328.5 ppm NO??) - 5461.1-4
Nitrite Nitrogen Standard, 100 ppm N (328.5 ppm NO??) - 5461.1-4Size:120 mL Glass amberCAS Number:7732-18-5,67-66-3,7758-09-0
ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-5
ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-5Size:20 L CubitainerCAS Number:7732-18-5,7783-83-7,7664-93-9,7783-85-9
Nitrate Standard, 1000 ppm NO?? (226 ppm N) - 5458-16
Nitrate Standard, 1000 ppm NO?? (226 ppm N) - 5458-16Size:500 mL Poly naturalCAS Number:7732-18-5,7757-79-1
Nitrite Nitrogen Standard, 100 ppm N (328.5 ppm NO??) - 5461.1-16
Nitrite Nitrogen Standard, 100 ppm N (328.5 ppm NO??) - 5461.1-16Size:500 mL Glass amberCAS Number:7732-18-5,67-66-3,7758-09-0
Nitrate Nitrogen Standard, 100 ppm N (442.7 ppm NO??) - 5457-16
Nitrate Nitrogen Standard, 100 ppm N (442.7 ppm NO??) - 5457-16Size:500 mL Poly naturalCAS Number:7732-18-5,67-66-3,7757-79-1
ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-1
ORP Standard, +200 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.5-1Size:4 L Glass amberCAS Number:7732-18-5,7447-40-7,14459-95-1,13746-66-2
Nitrate Nitrogen Standard, 100 ppm N (442.7 ppm NO??) - 5457-32
Nitrate Nitrogen Standard, 100 ppm N (442.7 ppm NO??) - 5457-32Size:1 L Poly naturalCAS Number:7732-18-5,67-66-3,7757-79-1
ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-1
ORP Standard, +600 mV vs. Ag/AgCl (4M KCl sat. with AgCl filling solution) - 5464.6-1Size:4 L Glass amberCAS Number:7732-18-5,7783-83-7,7664-93-9,7783-85-9
ORP Standard, 240 mV - R5464501-500B
ORP Standard, 240 mV - R5464501-500BSize:500 mL Amber polyCAS Number:7732-18-5,7447-40-7,14459-95-1,13746-66-2
