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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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2,580 Items found

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SKU: QCO-062K

Full Organics Set

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-025K

EPA Organics Set

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-020

NPW - PCB in Water

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: PCB-MD7C-A1

7 Component Dutch 7 PCB Congeners Mix, 1 mL

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  • Brand HPS
  • Matrix Isooctane
  • Concentration 100 µg/mL
  • Certification Single: Gravimetric
SKU: C-496

8082 Arochlor Mix(1016/1260) 1000ppm each

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  • Brand NSI
  • Concentration 1000ppm
  • Raw Material >95% min
  • Certification Grav &/ Volumetric w/analytical confirmation
  • Top rated
SKU: 8082-IC

Initial Combination Calibration Standard, 1,000 µg/mL

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  • Brand Spex
  • Matrix Hexane
  • Concentration 1,000 µg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
SKU: 130

Arochlor 1262 5000ppm in Isooctane

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  • Brand NSI
  • Matrix isooctane
  • Concentration 5000ppm
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: 126

Arochlor 1221 5000ppm in Isooctane

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  • Brand NSI
  • Matrix isooctane
  • Concentration 5000ppm
  • Raw Material >95% min
  • Certification Gravimetric and/or Volumetric
SKU: IC-BR

Bromide from Sodium Bromide at 100 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 100 µg/mL
SKU: IC-BR-10

Bromide from Sodium Bromide at 10 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 10 µg/mL
SKU: IC-BR-10M

Bromide from Sodium Bromide at 10,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 10,000 µg/mL
SKU: IC-BR-M

Bromide from Sodium Bromide at 1,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
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