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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: 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-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-QC16

Quantitative Legionella

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  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
SKU: MIC-QC15

Quantitative Standard Plate Count

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  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
  • 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
  • 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
SKU: RB-MMA-1

Mixed Mineral Acid 2% HNO3 + 0.5% HF Reagent Blank

  • CCL
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  • Brand HPS
  • Certification Single: Gravimetric
  • Matrix 2% HNO3 + 0.5% HF
SKU: RB-HNO3-5

5% Nitric Acid Reagent Blank

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  • Brand HPS
  • Certification Single: Gravimetric
SKU: RB-HNO3-2

2% Nitric Acid Reagent Blank

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  • Brand HPS
  • Certification Single: Gravimetric
SKU: RB-HCL-5

5% Hydrochloric Acid Reagent Blank

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  • Brand HPS
  • Certification Single: Gravimetric
SKU: RB-HCL-2

2% Hydrochloric Acid Reagent Blank

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  • Brand HPS
  • Certification Single: Gravimetric
SKU: RB-H2O

D.I. 18 Megaohm Water Reagent Blank

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  • Brand HPS
  • Certification Single: Gravimetric
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