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Environmental Certified Reference Materials and Proficiency Test Standards

Our wastewater standards enhance your testing accuracy and efficiency. Regular use of our certified reference materials (CRMs) and proficiency test (PT) standards ensures high data quality and supports accreditation needs.

We specialize in ISO-accredited CRMs and effluent standards that are stable and integrate seamlessly into routine workflows. Pre-measured, single-use materials help prevent errors and simplify processes. For example, try our GGA Concentrate Snips™: just snip and pour into a 300 mL BOD bottle—no measurements or contamination. Our versatile, multiparameter CRMs streamline testing procedures, reducing the need for multiple CRMs in your lab. Watch the demonstration video to learn more!

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SKU: PH-BUFF10-500

pH 10 Certified Buffer Standard, 10 SI Units in H2O (500 mL) Blue in color

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  • Concentration 10 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
  • New
SKU: S-1522

Diethylamine; 1000 µg/mL in methanol P&T; 1 mL

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  • Brand Spex
  • Matrix methanol P&T
  • Concentration 1000 µg/mL
  • Certification Single
  • New
SKU: S-1599

Dimethylamine; 1000 µg/mL in methanol P&T; 1 mL

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  • Brand Spex
  • Matrix methanol P&T
  • Concentration 1000 µg/mL
  • Certification Single
  • New
SKU: S-1938

Ethylamine; 1000 µg/mL in methanol P&T; 1 mL

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  • Brand Spex
  • Matrix methanol P&T
  • Concentration 1000 µg/mL
  • Certification Single
  • New
SKU: S-2457

Methylamine; 1000 µg/mL in methanol P&T; 1 mL

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  • Brand Spex
  • Matrix methanol P&T
  • Concentration 1000 µg/mL
  • Certification Single
  • New
SKU: S-4150

Diisobutyl Phthalate; 1000 µg/mL in methanol P&T; 1 mL

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  • Brand Spex
  • Matrix methanol P&T
  • Concentration 1000 µg/mL
  • Certification Single
  • New
SKU: S-4464

Diisodecyl Phthalate; 1000 µg/mL in methanol P&T; 1 mL

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  • Brand Spex
  • Matrix methanol P&T
  • Concentration 1000 µg/mL
  • Certification Single
SKU: FA-M6C-A1

6 Component Fatty Acids Mix at 1,000 µg/mL in H2O, 1 mL

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Certification Single: Gravimetric
  • Top rated
  • KIT
SKU: EPA-SETN

Assurance® Environmental EPA Set without Mercury for AA & ICP (125 mL)

  • CCL
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  • Brand Spex
  • Matrix Multiple
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SKU: EPA-SET

Assurance® Environmental EPA Set with Mercury for AA & ICP (125 mL)

  • CCL
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  • Brand Spex
  • Matrix Multiple
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: EP-4-500

Assurance® Secondary Drinking Water Metals for AA & ICP (500 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: EP-4

Assurance® Secondary Drinking Water Metals for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
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