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Organic, Inorganic, Microbiology & PT Reference Materials for Environmental Testing

  • Certified for environmental methods (e.g. EPA, Standard Methods, AOAC, ASTM, etc).
  • COA includes certified values for a variety of analytical techniques.
  • Accurate and robust chemical and microbiological certified reference materials.
  • Custom reference material manufacturing capabilities under ISO 17034. Learn More


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Wastewater Standards

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

Drinking Water Standards

We offer a wide range of Certified Reference Materials (CRMs) for testing applications for your drinking water analysis to ensure environmental and human health.

Soil/UST Standards

Soil and Underground Storage Tank (UST) standards are fundamental regulations established to preserve the environment and human health from hazards associated with underground storage tanks.

SNIP™ Standards

See why NSI SNIP™ standards are the easiest to use control standards for wastewater testing. Offering the only pre-measured, ready-to-use standards, in single-use tubes that require no pipetting. Great for simple error-free use.

Pesticides Standards

There are hundreds of commercial pesticides in use in the world today. From algaecides to virucides, pesticides are used in large quantities in industrial and private agriculture.

PFAS

Per- and polyfluoroalkyl substances (PFAS) are synthetically made organofluoride chemical compounds. These compounds were originally introduced to the public as an additive to make nonstick cookware, but they were quickly incorporated into all sorts of other products. Commonly known as "forever chemicals", many PFAS compounds do not break down in the environment and there is increasing evidence showing that PFAS exposure can lead to adverse human health.

Microplastics

Microplastics are tiny plastic particles, which can be unintentionally formed as a result of the breakdown of larger plastics.

6PPD-Quinone Standards

Ensure and Protect Aquatic Life with our Standards for 6PPD-Quinone Testing.

Organotins

Organic compounds widely used in a variety of industries for their antibacterial and fungicidal properties. Organotins are typically found in plastics, food packaging, plastic pipes, pesticides, and paints.

Polychlorinated biphenyls (PCBs) Standards

PCBs (polychlorinated biphenyls) are synthetic organic chemicals used in various industrial applications for their stability and insulation properties. Despite their ban in 1979, some PCBs can still be unintentionally produced during manufacturing. PCBs resist environmental degradation and pose long-term ecological risks. Also, they can accumulate in organisms and are linked to serious health issues.

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SKU: 654-M

Disulfoton

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 654-HA

Disulfoton

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 15759.24-50-ME

10:2 DiPAPS-d4 sodium salt,50 µg conj. base/mL in methanol,1 mL

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  • Brand Chiron
  • Matrix methanol
  • Concentration 50 µg conj. base/mL
SKU: 654

Disulfoton

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  • Brand NSI
  • Matrix Acetone
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 652

2,3,5,6-Tetrachlorophenol

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  • Brand NSI
  • Matrix CH2Cl2
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 13628.18-K-ME

Triphenyltin chloride, Purified (≥98%); 1000 µg/mL in methanol; 1 mL

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  • Brand Chiron
  • Matrix methanol
  • Concentration 1000 µg/mL
SKU: 8107.10-K-T

1,4-Naphthoquinone; 1000 µg/mL in toluene; 1 mL

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  • Brand Chiron
  • Concentration 1000 µg/mL
  • Matrix isooctane
  • Top rated
SKU: HICAL-ACIDS

HICAL-Acids Mix, 2,000 µg/mL

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  • Brand Spex
  • Matrix Methylene Chloride
  • Concentration 2,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
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