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Drinking water is susceptible to numerous harmful contaminants, prompting the EPA to establish rigorous regulations for over 90 pollutants, encompassing 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. Our offerings include specific drinking water pH standards, as well as 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 and reliable laboratory analysis.

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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
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
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
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
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
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
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
SKU: QCO-007-4

WS - EDB/DBCP/TCP

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-007-3B

WS - Unregulated VOCs - Blind

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-007-3

WS - Unregulated VOCs

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-007-12B

WS - Regulated VOCs - Blind

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-007-12

WS - Regulated VOCs

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