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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: 20

4-Chloro-3-methyl phenol

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 2

Acrolein

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 19

2,4,6-Trichlorophenol

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 18

2-Chloronaphthalene

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 17

2-Chloroethyl vinyl ether 2000ppm

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  • Brand NSI
  • Matrix Vinyl Ether
  • Concentration 2000ppm
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 16

bis(2-chloroethyl)ether

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 15

Chloroethane (Ethyl chloride)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 14

1,1,2,2-Tetrachloroethane

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 131

Arochlor 1268 2500ppm in Acetone

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  • Brand NSI
  • Matrix Acetone
  • Concentration 2500ppm
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 13

1,1,2-Trichloroethane

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: 1250

Azobenzene

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Gravimetric and/or Volumetric
SKU: 12

1,1-Dichloroethane

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
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