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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!

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Diethylamine; 1000 µg/mL in methanol P&T; 1 mL Diethylamine; 1000 µg/mL in methanol P&T; 1 mL
SKU: S-1522

Diethylamine; 1000 µg/mL in methanol P&T; 1 mL

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  • Brand Spex
  • Matrix methanol P&T
  • Concentration 1000 µg/mL
  • Certification Single
COMPLEX CYANIDE IN KOH 1000 PPM (500 mL) COMPLEX CYANIDE IN KOH 1000 PPM (500 mL)
SKU: RSCN9C-2X

COMPLEX CYANIDE IN KOH 1000 PPM (500 mL)

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  • Brand Spex
  • Matrix KOH
  • Concentration 1000 PPM
  • KIT
SET OF 2 SOLUTIONS FOR CYANIDE SET OF 2 SOLUTIONS FOR CYANIDE
SKU: RSCN9-SET

SET OF 2 SOLUTIONS FOR CYANIDE

  • CCL
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  • Brand Spex
  • Matrix Multiple
CYANIDE (SIMPLE) IN 2% KOH 1000 MG/L (125 mL) CYANIDE (SIMPLE) IN 2% KOH 1000 MG/L (125 mL)
SKU: RSCN9-2Y

CYANIDE (SIMPLE) IN 2% KOH 1000 MG/L (125 mL)

  • CCL
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  • Brand Spex
  • Matrix 2% KOH
  • Concentration 1000 mg/L
SIMPLE CYANIDE IN KOH 1000 PPM (500 mL) SIMPLE CYANIDE IN KOH 1000 PPM (500 mL)
SKU: RSCN9-2X

SIMPLE CYANIDE IN KOH 1000 PPM (500 mL)

  • CCL
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  • Brand Spex
  • Matrix KOH
  • Concentration 1000 PPM
Mixed Mineral Acid 2% HNO3 + 0.5% HF Reagent Blank Mixed Mineral Acid 2% HNO3 + 0.5% HF Reagent Blank
SKU: RB-MMA-1

Mixed Mineral Acid 2% HNO3 + 0.5% HF Reagent Blank

  • CCL
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  • Brand HPS
  • Certification Single: Gravimetric
  • Matrix 2% HNO3 + 0.5% HF
5% Nitric Acid Reagent Blank 5% Nitric Acid Reagent Blank
SKU: RB-HNO3-5

5% Nitric Acid Reagent Blank

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  • Brand HPS
  • Certification Single: Gravimetric
2% Nitric Acid Reagent Blank 2% Nitric Acid Reagent Blank
SKU: RB-HNO3-2

2% Nitric Acid Reagent Blank

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  • Brand HPS
  • Certification Single: Gravimetric
5% Hydrochloric Acid Reagent Blank 5% Hydrochloric Acid Reagent Blank
SKU: RB-HCL-5

5% Hydrochloric Acid Reagent Blank

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  • Brand HPS
  • Certification Single: Gravimetric
2% Hydrochloric Acid Reagent Blank 2% Hydrochloric Acid Reagent Blank
SKU: RB-HCL-2

2% Hydrochloric Acid Reagent Blank

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  • Brand HPS
  • Certification Single: Gravimetric
D.I. 18 Megaohm Water Reagent Blank D.I. 18 Megaohm Water Reagent Blank
SKU: RB-H2O

D.I. 18 Megaohm Water Reagent Blank

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  • Brand HPS
  • Certification Single: Gravimetric
7 Component ICP QC Standard in 2% HNO3 7 Component ICP QC Standard in 2% HNO3
SKU: QCS-7-M

7 Component ICP QC Standard in 2% HNO3

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  • Brand HPS
  • Matrix 2% HNO3
  • Concentration Multiple
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
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