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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: MM-9004

20% NH4H2PO4 Matrix Modifier for GFAAS in 0.05% HNO3

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  • Brand HPS
  • Matrix 0.05% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9003

Matrix Modifier for GFAAS in 0.05% HNO3 10% NH4H2PO4

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  • Brand HPS
  • Matrix 0.5% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MM-9002-1

1% NH4H2PO4 Matrix Modifier for GFAAS in 0.05% HNO3

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  • Brand HPS
  • Matrix 0.05% HNO3
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: MIC-QC5B

MIC-QC5B - Quantitative Enterococcus/Fecal Strep - Blind

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  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
SKU: MIC-QC5

Quantitative Enterococcus/Fecal Strep

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  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
SKU: MIC-QC2B

MIC-QC2B - Quantitative Coliforms/E.coli/Fecal Coliform - Blind

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  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
SKU: MIC-QC2

Quantitative Coliforms/E.coli/Fecal Coliform

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  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
SKU: MIC-QC17B

MIC-QC17B - Quantitative Fecal Coliform in Sludge - Blind

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  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
SKU: MIC-QC17

Quantitative Fecal Coliform in Sludge

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  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
SKU: MIC-QC16B

MIC-QC16B - Quantitative Legionella - Blind

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  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
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