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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: IC-CA-M

Calcium from Calcium Chloride at 1,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
SKU: 100029-6

Lithium 6 Isotope at 1,000 µg/mL in 1% HNO3

  • CCL
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  • Brand HPS
  • Matrix 1% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 67 elements to ppb (product)
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: QCI-069C

Oil & Grease - Ready To Use Reference Material (4 x 1000 mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCI-029B

Oil & Grease Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: QCI-029

Oil & Grease QC Concentrate CRM

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: IC-7-2

7 Anion Standard 2 (125mL)

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  • Brand NSI
  • Matrix Water
  • Concentration 1000 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IC-7-1

7 Anion Standard 1 (125mL)

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  • Brand NSI
  • Matrix Water
  • Concentration 1000 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IC-6-1

6 Cation Standard (125 mL)

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  • Brand NSI
  • Matrix Water
  • Concentration 1000 mg/L
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: IC-5-1

6 Anion Standard (125 mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric w/IC Confirmation
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
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