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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: ECS-N-201

Semivolatile Internal Standards Mix, 2,000 µg/mL

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  • Brand Spex
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Concentration 2,000 μg/mL
  • Matrix Methylene Chloride
  • Raw Material >95% min; as available
  • Top rated
SKU: ECS-N-001

Semivolatile Internal Standards Mix, 4,000 µg/mL

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  • Brand Spex
  • Matrix Methylene Chloride
  • Concentration 4,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: CLP90-SURR

Alternate Combination Surrogates for CLP SOW

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  • Brand Spex
  • Matrix Methylene Chloride:Acetone
  • Concentration 1,500 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: CLP90-SBH5

High Concentration Base/Neutral Surrogate Standards, 5,000 µg/mL (5 mL)

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  • Brand Spex
  • Matrix Methylene Chloride:Acetone:Benzene
  • Concentration 5,000 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: CLP90-SB5

Base/Neutral Surrogate Standards, 1,000 µg/mL (5 mL)

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  • Brand Spex
  • Matrix Methylene Chloride:Acetone
  • Concentration 1,000 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: CLP90-75SA5

High Concentration Acid Surrogates, 7,500 µg/mL (5 mL)

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  • Brand Spex
  • Matrix Methanol
  • Concentration 7,500 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
SKU: CLN-SOIL

Clean Soil Certified Reference Material

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  • Brand Spex
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Raw Material >95% min; as available
SKU: C-800

8260 Volatile Mix, Varied Concentrations

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  • Brand NSI
  • Raw Material >95% min
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: C-754

8330A Calibration Mix 2 100ug/mL in Acetonitrile (1.5mL)

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  • Brand NSI
  • Matrix Acetonitrile
  • Concentration 100ug/mL
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: C-753

8330A Calibration Mix 1

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  • Brand NSI
  • Raw Material >95% min
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: C-752

Oxygenates Standard, 6 Components at Varied Concentrations

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  • Brand NSI
  • Raw Material >95% min
  • Certification Grav &/ Volumetric w/analytical confirmation
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