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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: PEI-029

Oil and Grease (2 pack)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: PEI-026

Demand (2 pack)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
  • Top rated
  • KIT
SKU: MXSTD-SETAN

Assurance® Calibration Standards without Mercury for AA & ICP (125 mL)

  • CCL
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  • Brand Spex
  • Matrix Multiple
  • Concentration 5 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: MXSTD4A-500N

Assurance® Mixed Calibration Standard 4A without Mercury for AA & ICP (500 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. HF
  • Concentration 40 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: MXSTD4A-100N

Assurance® Mixed Calibration Standard 4A without Mercury for AA & ICP (125 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. HF
  • Concentration 40 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
SKU: MM-9101

1,500 µg Pd/mL - 1,000 Mg

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  • Brand HPS
  • Matrix 10% HNO3 & Tr HCl
  • Concentration Multiple
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9100

1,000 µg Pd/mL - 600 µg Mg(NO3)2/mL Matrix Modifier for GFAAS in 10% HNO3 + Tr HCl

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  • Brand HPS
  • Matrix 10% HNO3 & Tr HCl
  • Concentration 1,000 µg Pd/mL
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9042

5% NH4NO3 Matrix Modifier for GFAAS in H2O

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  • Brand HPS
  • Matrix H2O
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9040

Matrix Modifier for GFAAS in H2O 0.1% NH4NO3

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  • Brand HPS
  • Matrix H2O
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9032

Matrix Modifier for GFAAS in 1% HNO3 5% Ni(NO3)2

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  • Brand HPS
  • Matrix 1% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9031

1% Ni(NO3)2 Matrix Modifier for GFAAS in 1% HNO3

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  • Brand HPS
  • Matrix 1% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9012

5% Mg(NO3)2 Matrix Modifier for GFAAS in 1% HNO3 (250 mL)

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  • Brand HPS
  • Matrix 1% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
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