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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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54 Component Volatile Organic Combination Mix 54 Component Volatile Organic Combination Mix
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
6 Component Purgeable Gases Mix, 200 µg/mL 6 Component Purgeable Gases Mix, 200 µg/mL
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
6 Component Purgeable Gases Mix, 2,000 µg/mL 6 Component Purgeable Gases Mix, 2,000 µg/mL
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
Texas TPH in Soil Texas TPH in Soil
SKU: TX-1005SPT

Texas TPH in Soil

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  • Brand NSI
  • Matrix Soil
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Top rated
  • KIT
WP-15N,WP-3,MN-6 WP-15N,WP-3,MN-6
SKU: TM-SETN

WP-15N,WP-3,MN-6

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  • Brand Spex
  • Matrix Multiple
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SET OF 3; WP-15, WP-3, MN-6 SET OF 3; WP-15, WP-3, MN-6
SKU: TM-SET

SET OF 3; WP-15, WP-3, MN-6

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  • Brand Spex
  • Matrix Multiple
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
4 Component Trihalomethanes Mix, 200 µg/mL 4 Component Trihalomethanes Mix, 200 µg/mL
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
4 Component Trihalomethanes Mix, 2,000 µg/mL 4 Component Trihalomethanes Mix, 2,000 µg/mL
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
CONDUCTIVITY (TDS AS KCL) 650 PPM  (500 mL) CONDUCTIVITY (TDS AS KCL) 650 PPM  (500 mL)
SKU: TDS-2-500

CONDUCTIVITY (TDS AS KCL) 650 PPM (500 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 650 PPM
CONDUCTIVITY (TDS AS KCL) 65 PPM (500 mL) CONDUCTIVITY (TDS AS KCL) 65 PPM (500 mL)
SKU: TDS-1-500

CONDUCTIVITY (TDS AS KCL) 65 PPM (500 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 65 PPM
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