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Our wastewater standards enhance your testing accuracy and efficiency. Regularly using our certified reference materials (CRMs) and proficiency test (PT) standards ensures high data quality and meets accreditation needs. We specialize in ISO-accredited CRMs and effluent standards for wastewater that are stable and seamlessly integrate into routine workflows. Our pre-measured, single-use materials prevent errors and simplify processes. For instance, try our GGA Concentrate Snips™: just snip and pour into a 300mL BOD bottle — no measurements or contamination. Our versatile, multiparameter CRMs streamline testing procedures, reducing the need for multiple CRMs in your lab. Watch our demonstration video to learn more!

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SKU: MIC-004

Enterococcus/Fecal Strep (2 pack)

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
SKU: MIC-003

Coliforms/E.coli (2 pack)

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  • Brand NSI
  • Raw Material <2 passages from primary culture
  • Certification Cultural based enumeration
SKU: PH-BUFF5-500

pH 5 Certified Buffer Standard, 5 SI Units in H2O (500 mL)

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  • Brand Spex
  • Concentration 5 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
SKU: ICP-MS-68A-C

7 Component ICP-MS Standard at 10 µg/mL Solution C

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  • Brand HPS
  • Certification Single: Gravimetric w/ICP Confirmation
  • Concentration 10 µg/mL
  • Matrix 2% HCl
  • Raw Material Five 9s as available; no purification
SKU: 197H

2-Methyl-2-Pentanol

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
  • Concentration 20,000 µg/mL in P&T Methanol
  • Raw Material >95% min
SKU: 1470L

1-Bromo-2-nitrobenzene

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
  • Concentration 1000 µg/mL
  • Matrix Acetone
  • Raw Material >95% min
SKU: 1379

tert-Amyl methyl ether

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
  • Concentration 2000 µg/mL
  • Matrix Methanol
  • Raw Material >95% min
SKU: 1105

n-Butylbenzene

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
  • Concentration 1000 µg/mL
  • Matrix Methanol
  • Raw Material >95% min
SKU: 194

2-Fluorobiphenyl

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
  • Concentration 10,000 µg/mL
  • Matrix Methylene Chloride
  • Raw Material >95% min
SKU: 93

Endosulfan I

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
  • Concentration 1000 µg/mL
  • Matrix Ethyl acetate
  • Raw Material >95% min; as available
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