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Certified Reference Materials for Drinking Water Analysis

Drinking water is susceptible to numerous harmful contaminants, prompting the EPA to establish rigorous regulations for more than 90 pollutants, including microorganisms, inorganic chemicals, organic chemicals, disinfectants, and disinfection by-products.

We provide an extensive range of certified reference materials (CRMs) tailored for comprehensive drinking water analysis. Offerings include drinking water pH standards and testing standards for residual free chlorine, turbidity, trace metals, mercury, fluoride, and nitrite.

Our drinking water standards are essential for maintaining water quality, safeguarding public health, and supporting accurate, reliable laboratory analysis.

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2,214 Items found

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WS - Pesticides WS - Pesticides
SKU: QCO-099

WS - Pesticides

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Organic Disinfection By-Products - Blind WS - Organic Disinfection By-Products - Blind
SKU: QCO-098B

WS - Organic Disinfection By-Products - Blind

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  • Brand NSI
  • Matrix MTBE
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Organic Disinfection By-Products WS - Organic Disinfection By-Products
SKU: QCO-098

WS - Organic Disinfection By-Products

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Diquat/Endothall/Glyphosate/Paraquat - Blind WS - Diquat/Endothall/Glyphosate/Paraquat - Blind
SKU: QCO-097B

WS - Diquat/Endothall/Glyphosate/Paraquat - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS -Diquat/Endothall/Glyphosate/Paraquat WS -Diquat/Endothall/Glyphosate/Paraquat
SKU: QCO-097

WS -Diquat/Endothall/Glyphosate/Paraquat

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Chloral Hydrate - Blind WS - Chloral Hydrate - Blind
SKU: QCO-077B

WS - Chloral Hydrate - Blind

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  • Brand NSI
  • Matrix Acetonitrile
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Chloral Hydrate WS - Chloral Hydrate
SKU: QCO-077

WS - Chloral Hydrate

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  • Brand NSI
  • Matrix Acetonitrile
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Oxygenates - Blind WS - Oxygenates - Blind
SKU: QCO-075B

WS - Oxygenates - Blind

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  • Brand NSI
  • Matrix PT Methano
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - Oxygenates WS - Oxygenates
SKU: QCO-075

WS - Oxygenates

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
EPA WS Organics Kit EPA WS Organics Kit
SKU: QCO-010K

EPA WS Organics Kit

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
Full WS Organics Kit Full WS Organics Kit
SKU: QCO-009K

Full WS Organics Kit

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
WS - EDB/DBCP/TCP - Blind WS - EDB/DBCP/TCP - Blind
SKU: QCO-007-4B

WS - EDB/DBCP/TCP - Blind

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  • Brand NSI
  • Matrix P/T Methano
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
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