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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: THM-HM4C-A1

4 Component Trihalomethanes Mix, 2,000 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 2,000 μg/mL
  • Certification Single: Gravimetric
SKU: THM-LM4C-A1

4 Component Trihalomethanes Mix, 200 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 200 µg/mL
  • Certification Single: Gravimetric
SKU: VOC-HM6C-A1

6 Component Purgeable Gases Mix, 2,000 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 2,000 μg/mL
  • Certification Single: Gravimetric
SKU: VOC-LM6C-A1

6 Component Purgeable Gases Mix, 200 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 200 µg/mL
  • Certification Single: Gravimetric
SKU: VOC-M54C-A1

54 Component Volatile Organic Combination Mix

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 2,000 μg/mL
  • Certification Single: Gravimetric
SKU: VOC-M60C-1000-A1

60 Component Volatile Organic Combination Mix at 1,000 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 1,000 µg/mL
  • Certification Single: Gravimetric
SKU: VOC-M60C-A1

60 Component Volatile Organic Combination Mix at 200 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 200 µg/mL
  • Certification Single: Gravimetric
SKU: VOC-M76C-A1

76 Component Base Neutral & Acid Combination Calibration Standard

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  • Brand HPS
  • Matrix Methylene Chloride
  • Concentration 1,000 µg/mL
  • Certification Single: Gravimetric
SKU: VOC-SURR-M3C-A1

3 Component Surrogate Standard Mix, 2,000 µg/mL

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  • Brand HPS
  • Matrix Methanol-P&T
  • Concentration 2,000 μg/mL
  • Certification Single: Gravimetric
SKU: 1480

Acephate in Acetone

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  • Brand NSI
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: WQC-ALK-500

Calcium Carbonate Alkalinity Standard at 1,000 µg/mL in H2O (500 mL)

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: WQC-COND-500

Conductivity Standard at 25 ?ºC at 100 µmhos in H2O (500 mL)

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  • Brand HPS
  • Matrix H2O
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ Wet Chem
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