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

  • Certified for environmental methods - plate counts, MPN.
  • COA includes expected value for multiple methods.
  • Robust - lyophilized technique ensures strong recovery even for 44.5 ºC coliform methods.
  • Unique - multi-organism CRM covers 6 methods in a single pellet - see part # MIC-UNV-10


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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

NSI offers 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.

Tin-Organics

Organometallic tin compounds used as anti-biofouling additives, biocides, stabilizers, pesticides, and to check wear metals in oils and lubricants.

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SKU: EMPT-1

EXTRACTABLE METALS FROM PLASTIC TOYS 1 (125 mL)

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  • Brand Spex
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: ECS-Z-003

Acid Extractables Surrogate Mix, 2,000 µg/mL

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  • Brand NSI
  • Matrix Methylene Chloride
  • Concentration 2,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: ECS-Z-002

Base/Neutral Surrogate Mix, 1,000 µg/mL

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  • Brand Spex
  • Matrix Methylene Chloride
  • Concentration 1,000 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: ECS-N-027

Semivolatile Surrogates Mix

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  • Brand Spex
  • Matrix Methylene Chloride
  • Concentration 1,000 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
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