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

We offer organic, inorganic, microbiology, and proficiency testing (PT) reference materials for environmental testing. Choosing environmental reference materials from ZeptoMetrix means 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). 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

A wide range of CRMs for drinking water analysis to help ensure environmental and human health.

Soil/UST Standards

Meet foundational regulations designed to protect the environment and public health from hazards associated with underground storage tanks.

SNIP™ Standards

NSI SNIP™ standards are the easiest-to-use control standards for wastewater testing — pre-measured, ready-to-use single-use tubes that require no pipetting.

Pesticides Standards

Support analysis of hundreds of commercial pesticides with ready-to-use mixes and single-compound CRMs.

PFAS

CRMs to analyze per- and polyfluoroalkyl substances (PFAS), the synthetically made organofluorine compounds commonly known as “forever chemicals.”

Microplastics

Chiron MicroPRefs® — the first commercial microplastic reference materials — in an easy-to-use formulation.

6PPD-Quinone Standards

Help protect aquatic life with standards for 6PPD-quinone testing.

Organotins

Broad and unique inventory of organotin reference materials used across industries for antibacterial and fungicidal applications.

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4,845 Items found

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SKU: 1286

Isobutylbenzene

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: PH-BUFF8-500

pH 8 Certified Buffer Standard, 8 SI Units in H2O (500 mL)

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  • Brand Spex
  • Concentration 8 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
SKU: 14677.18-1G

Laurylamine dipropylenediamine; neat; 1 g

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  • Brand Chiron
  • Matrix neat
  • Concentration neat
SKU: 15413.5-100-ME

NFDHA,1 mL,100 µg in Methanol,1 mL

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  • Brand Chiron
  • Concentration 100 µg/mL
  • Matrix methanol
SKU: PH-BUFF7-500

pH 7 Certified Buffer Standard, 7 SI Units in H2O (500 mL) Yellow in color

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  • Brand Spex
  • Concentration 7 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
  • New
SKU: CRM-5482-2-ME

PFAS EPA Method 537 Mix, 2 µg/mL in methanol with 4 mol eq. NaOH, 1 mL

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  • Brand Chiron
  • Certification Grav. &/or Volume w/Analytical Confirmation
  • Concentration 2 µg/mL
  • Matrix Methanol with 4 mol eq. NaOH
  • Raw Material min. 95% purity
  • New
SKU: CRM-5481-1-ME

PFAS EPA Method 533 Mix, 1 µg/mL in methanol with 4 mol eq. NaOH, 1 mL

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  • Brand Chiron
  • Certification Grav. &/or Volume w/Analytical Confirmation
  • Concentration 1 µg/mL
  • Matrix Methanol with 4 mol eq. NaOH
  • Raw Material min. 95% purity
  • New
SKU: CRM-5484-ASS-ME

PFAS EPA Method 1633 Mix, in methanol with 4 mol eq. NaOH, 1 mL

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  • Brand Chiron
  • Certification Grav. &/or Volume w/Analytical Confirmation
  • Concentration Assorted
  • Matrix Methanol with 4 mol eq. NaOH
  • Raw Material min. 95% purity
  • New
SKU: CRM-5483-20-ME

PFAS EPA NPDWR2024 Mix, 20 µg/mL in methanol with 4 mol eq. NaOH, 1 mL

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  • Brand Chiron
  • Certification Grav. &/or Volume w/Analytical Confirmation
  • Concentration 20 µg/mL
  • Matrix Methanol with 4 mol eq. NaOH
  • Raw Material min. 95% purity
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