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  • Certified for environmental methods — plate counts, MPN
  • COA includes expected values for multiple methods
  • Robust — lyophilized technique ensures strong recovery, even for 44.5 ºC coliform methods
  • Unique — multi-organism CRM covers six methods in a single pellet (MIC-UNV-10)

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Wastewater

Manufactured from the highest purity water and analytically verified neat source materials. Our certified reference materials are ISO 17034 accredited.

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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
NPW - Herbicides - Blind NPW - Herbicides - Blind
SKU: QCO-094B

NPW - Herbicides - Blind

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  • Brand NSI
  • Matrix Methyl tert-butyl ether
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW - Herbicides NPW - Herbicides
SKU: QCO-094

NPW - Herbicides

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW - Toxaphene - Blind NPW - Toxaphene - Blind
SKU: QCO-093B

NPW - Toxaphene - Blind

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  • Brand NSI
  • Matrix Acetone
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
NPW - Toxaphene NPW - Toxaphene
SKU: QCO-093

NPW - Toxaphene

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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
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