Skip to Main Content

Select country

Select your country

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!

Categories and filters

Filter / Sorting

Categories

Brand

Accreditations

Product Type

Regulatory Method

Instrument / Test

Analyte - Single / Multi

CAS #

Analyte / Component

Microorganism

1,998 Items found

Per Page:
Sort by:
  • Top rated
Assurance® Mixed Calibration Standard 1C for AA & ICP (125 mL) Assurance® Mixed Calibration Standard 1C for AA & ICP (125 mL)
SKU: MIXSTD1C-100

Assurance® Mixed Calibration Standard 1C for AA & ICP (125 mL)

  • CCL
Login to view pricing
  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid/tr. HF
  • Concentration 5 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
Assurance® Mixed Calibration Standard 1A for AA & ICP (500 mL) Assurance® Mixed Calibration Standard 1A for AA & ICP (500 mL)
SKU: MIXSTD1A-500

Assurance® Mixed Calibration Standard 1A for AA & ICP (500 mL)

  • CCL
Login to view pricing
  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid/tr. HF
  • Concentration 5 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
Assurance® Mixed Calibration Standard 1A for AA & ICP (125 mL) Assurance® Mixed Calibration Standard 1A for AA & ICP (125 mL)
SKU: MIXSTD1A-100

Assurance® Mixed Calibration Standard 1A for AA & ICP (125 mL)

  • CCL
Login to view pricing
  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid/tr. HF
  • Concentration 5 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
Assurance® Mixed Calibration Standard 1 for AA & ICP (500 mL) Assurance® Mixed Calibration Standard 1 for AA & ICP (500 mL)
SKU: MIXSTD1-500

Assurance® Mixed Calibration Standard 1 for AA & ICP (500 mL)

Login to view pricing
  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
Assurance® Mixed Calibration Standard 1 for AA & ICP (125 mL) Assurance® Mixed Calibration Standard 1 for AA & ICP (125 mL)
SKU: MIXSTD1-100

Assurance® Mixed Calibration Standard 1 for AA & ICP (125 mL)

Login to view pricing
  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
Assurance® Calibration Standards with Mercury for AA & ICP (125 mL) Assurance® Calibration Standards with Mercury for AA & ICP (125 mL)
SKU: MIXSTD-SETA

Assurance® Calibration Standards with Mercury for AA & ICP (125 mL)

  • CCL
Login to view pricing
  • Brand Spex
  • Matrix Multiple
  • Concentration 5 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
Assurance® Mixed Calibration Standards for AA & ICP (125 mL) Assurance® Mixed Calibration Standards for AA & ICP (125 mL)
SKU: MIXSTD-SET

Assurance® Mixed Calibration Standards for AA & ICP (125 mL)

  • CCL
Login to view pricing
  • Brand Spex
  • Matrix Multiple
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
MIC-QC5B - Quantitative Enterococcus/Fecal Strep - Blind MIC-QC5B - Quantitative Enterococcus/Fecal Strep - Blind
SKU: MIC-QC5B

MIC-QC5B - Quantitative Enterococcus/Fecal Strep - Blind

Login to view pricing
  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
Quantitative Enterococcus/Fecal Strep Quantitative Enterococcus/Fecal Strep
SKU: MIC-QC5

Quantitative Enterococcus/Fecal Strep

Login to view pricing
  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
MIC-QC2B - Quantitative Coliforms/E.coli/Fecal Coliform - Blind MIC-QC2B - Quantitative Coliforms/E.coli/Fecal Coliform - Blind
SKU: MIC-QC2B

MIC-QC2B - Quantitative Coliforms/E.coli/Fecal Coliform - Blind

Login to view pricing
  • Brand NSI
  • Certification Cultural based enumeration
  • Raw Material <2 passages from primary culture
AlertAlertBrowse fileDownload fileFileImagePdfWordTextExcelPowerpointArchiveCsvAudioVideoSpinnerCalendarReturn arrowMinusVisibleInvisibleVisibleInvisibleConfigure