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

We offer organic, inorganic, microbiology, and PT reference materials for environmental testing. When you opt for environmental reference materials from ZeptoMetrix, you get accurate and robust chemical and microbiological certified reference materials (CRMs). Our standards are certified for various environmental methods (e.g., EPA, Standard Methods, AOAC, ASTM, etc). Every COA includes certified values for a variety of analytical techniques. We provide custom reference material manufacturing under ISO 17034. Our CRMs increase your laboratory’s efficiency and provide confidence in the accuracy of your results.

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Wastewater Standards

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

Drinking Water Standards

We offer a wide range of 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 help meet fundamental regulations established to preserve the environment and human health from hazards associated with underground storage tanks.

SNIP™ Standards

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, and our pesticide standards help with analyzing them.

PFAS

Our PFAS standards help analyze per- and polyfluoroalkyl substances (PFAS), the synthetically made organofluoride chemical compounds commonly known as "forever chemicals."

Microplastics

Microplastics are tiny plastic particles, which can be unintentionally formed as a result of the breakdown of larger plastics. Our Chiron MicroPRefs® are the first commercial microplastic reference materials and are available in an easy-to-use formulation.

6PPD-Quinone Standards

Ensure and protect aquatic life with our standards for 6PPD-quinone testing.

Organotins

Organic compounds are widely used in a variety of industries for their antibacterial and fungicidal properties. We provide the broadest, most unique inventory of organotin reference materials.

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4,819 Items found

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SKU: QCI-014B

Turbidity Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-014

Turbidity QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-013B

TOC/DOC Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-013

TOC/DOC QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-012B

Residual Free Chlorine Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-012

Residual Free Chlorine QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
  • Top rated
SKU: QC-7A-500

QUALITY CONTROL STANDARD 7A,500ML HNO3 (500 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. HF
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: QC-7A

QUALITY CONTROL STANDARD 7A HNO3 (125 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. HF
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: QC-7-500

QUALITY CONTROL STANDARD 7 (500ML)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. F-
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: QC-7

QUALITY CONTROL STANDARD 7 (125 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. F-
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: QC-24

AA/ICP QUALITY CONTROL STANDARD STANDARD 24

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  • Brand Spex
  • Matrix 10% HNO3
  • Concentration 10 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: QC-23

QUALITY CONTROL STANDARD 23 (125ml)

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  • Brand Spex
  • Matrix 10% HNO3
  • Concentration 1,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
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