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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: C-349H

Volatiles CRM 2000ppm each

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  • Brand NSI
  • Concentration 2000ppm
  • Raw Material >95% min
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: C-349

Volatiles Mix

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  • Brand NSI
  • Raw Material >95% min
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: C-193

VOA Matrix Spike

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  • Brand NSI
  • Raw Material >95% min
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: 678

Formaldehyde

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  • Brand NSI
  • Matrix Methanol
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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
SKU: QCI-147L

Stable Sulfide Standard 1mg/mL

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  • Brand NSI
  • Concentration 1mg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: CWW-TM-H

22 Component Trace Metals in 10% HNO3 + Tr HF, Mix H (10 mL)

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  • Brand HPS
  • Matrix 10% HNO3 + Tr HF, Mix G
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: CWW-TM-F

22 Component Trace Metals in 10% HNO3 + Tr HF, Mix F (10 mL)

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  • Brand HPS
  • Matrix 10% HNO3 + Tr HF, Mix F
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: CWW-TM-E

22 Component Trace Metals in 10% HNO3 + Tr HF, Mix E (10 mL)

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  • Brand HPS
  • Matrix 10% HNO3 + Tr HF, Mix E
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: CWW-TM-D

22 Component Trace Metals in 10% HNO3 + Tr HF Mix D (10 mL)

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  • Brand HPS
  • Matrix 10% HNO3 + Tr HF Mix D
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: CWW-TM-C

22 Component Trace Metals in 10% HNO3 + Tr HF, Mix C (10 mL)

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  • Brand HPS
  • Matrix 10% HNO3 + Tr HF, Mix C
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: CWW-TM-B

22 Component Trace Metals in 10% HNO3 + Tr HF, Mix B (10 mL)

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  • Brand HPS
  • Matrix 10% HNO3 + Tr HF, Mix B
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
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