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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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3,987 Items found

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MBAs QC Concentrate CRM MBAs QC Concentrate CRM
SKU: QCI-124

MBAs QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Total Chlorine Accuracy Check Snip™ 1.00ppm Total Chlorine Accuracy Check Snip™ 1.00ppm
SKU: QCI-123

Total Chlorine Accuracy Check Snip™ 1.00ppm

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  • Brand NSI
  • Concentration 1.00 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Ultra Low Chlorine Accuracy Check Snip™ 0.100ppm Ultra Low Chlorine Accuracy Check Snip™ 0.100ppm
SKU: QCI-118

Ultra Low Chlorine Accuracy Check Snip™ 0.100ppm

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  • Brand NSI
  • Concentration 0.100 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Total Chlorine Accuracy Check Snip™ 2.50ppm Total Chlorine Accuracy Check Snip™ 2.50ppm
SKU: QCI-117

Total Chlorine Accuracy Check Snip™ 2.50ppm

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  • Brand NSI
  • Concentration 2.50 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Perchlorate Concentrate - Blind Perchlorate Concentrate - Blind
SKU: QCI-108B

Perchlorate Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Perchlorate QC Concentrate Perchlorate QC Concentrate
SKU: QCI-108

Perchlorate QC Concentrate

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
TOX Concentrate - Blind TOX Concentrate - Blind
SKU: QCI-104B

TOX Concentrate - Blind

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
TOX QC Concentrate CRM TOX QC Concentrate CRM
SKU: QCI-104

TOX QC Concentrate CRM

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Silica Concentrate - Blind Silica Concentrate - Blind
SKU: QCI-101B

Silica Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Silica QC Concentrate CRM Silica QC Concentrate CRM
SKU: QCI-101

Silica QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
Nitrite-N Concentrate - Blind Nitrite-N Concentrate - Blind
SKU: QCI-100B

Nitrite-N Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
Nitrite-N QC Concentrate CRM Nitrite-N QC Concentrate CRM
SKU: QCI-100

Nitrite-N QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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