Skip to Main Content

Select country

Select your country

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!

Categories and filters

Filter / Sorting

Categories

Brand

Accreditations

Product Type

Regulatory Method

Instrument / Test

Analyte - Single / Multi

CAS #

Analyte / Component

Microorganism

2,501 Items found

Per Page:
Sort by:
SKU: WL-513FP

Midpoint Check w/Surrogates - SW-846 (5X1.5mL)

Login to view pricing
  • Brand NSI
  • Concentration 50 ug/mL
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-507

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

Login to view pricing
  • 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

Login to view pricing
  • 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)

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

TCL BNA LCS Spike (50mL)

Login to view pricing
  • 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)

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

TCL BNA LCS Spike (25mL)

Login to view pricing
  • 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)

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

TCL BNA LCS Spike (10mL)

Login to view pricing
  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-397X

625 LCS Spike (25mL)

Login to view pricing
  • Brand NSI
  • Matrix Methanol/Methylene
  • Concentration 100ug/mL
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: WL-397

625 LCS Spike (25mL)

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

625 LCS Spike w/o Benzidines (10mL)

Login to view pricing
  • Brand NSI
  • Matrix Methanol/Methylene
  • Concentration 100ug/mL
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
AlertAlertBrowse fileDownload fileFileImagePdfWordTextExcelPowerpointArchiveCsvAudioVideoSpinnerCalendarReturn arrowMinusVisibleInvisibleVisibleInvisibleConfigure