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Scheduled Proficiency Testing & PT Express™ for Drinking Water

Drinking water may contain many harmful contaminants which is why the EPA has set standards for over 90 pollutants including microorganisms, inorganic chemicals, organic chemicals, disinfectants, and disinfection by-products.

We offer a wide range of Certified Reference Materials (CRMs) for testing applications for your drinking water analysis to ensure environmental and human health. Some of our offerings include testing standards for pH, residual free chlorine, turbidity, trace metals, mercury, fluoride, and nitrite.

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SKU: PEO-123

Chlorinated Acid Herbicides Drinking Water Organic Standard (2 pack)

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  • Brand NSI
  • Matrix MTBE
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-099

Pesticides Drinking Water Organic Standard (2 pack)

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  • Brand NSI
  • Matrix Acetone
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-098

Organic Disinfection By-Products Drinking Water Organic Standard (2 pack)

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  • Brand NSI
  • Matrix MTBE
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-097

Diquat/Endothall/Glyphosate/Paraquat Drinking Water Organic Standard (2 pack)

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  • Brand NSI
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-077

Chloral Hydrate Drinking Water Organic Standard (2 pack)

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  • Brand NSI
  • Matrix Acetonitrile
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-075

Oxygenates Drinking Water Organic Standard (2 pack)

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  • Brand NSI
  • Matrix PT Methano
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-010K

EPA WS Organics Kit

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  • Brand NSI
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-009K

Full WS Organics Kit

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  • Brand NSI
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-007-4

EDB/DBP/TCP Drinking Water Organic Standard (2 pack)

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  • Brand NSI
  • Matrix P/T Methano
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-007-3

Unregulated VOCs Drinking Water Organic Standard (2 pack)

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  • Brand NSI
  • Matrix Methanol
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-007-12

Regulated VOCs Drinking Water Organic Standard (2 pack)

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  • Brand NSI
  • Matrix Methanol
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEO-006

Regulated SOCs Drinking Water Organic Standard (2 pack)

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  • Brand NSI
  • Matrix Acetone
  • Certification Single: Grav. w/Analytical Confirmation
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