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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: WL-507

Ready Stock 200 - SW-846 Surr (5mL)

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  • Brand NSI
  • Matrix Methylene chloride
  • Concentration 200 ug/mL
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-445

Pesticide Spike II

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-408-50X

TCL BNA LCS Spike w/o Benzidines (50mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-408-50

TCL BNA LCS Spike (50mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-408-25X

TCL BNA LCS Spike w/o Benzidines (25mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-408-25

TCL BNA LCS Spike (25mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-408-10X

TCL BNA LCS Spike w/o Benzidines (10mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-408-10

TCL BNA LCS Spike (10mL)

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-396X

625 LCS Spike w/o Benzidines (10mL)

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  • Brand NSI
  • Matrix Methanol/Methylene
  • Concentration 100ug/mL
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-396

625 LCS Spike (10mL)

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  • Brand NSI
  • Matrix Methanol/Methylene
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-371C

8270 BNA Surrogates - SW 846 Color Coded

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-371

8270 BNA Surrogates - SW 846

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