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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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2,576 Items found

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  • Top rated
SKU: ICH-TXM7

Elemental Impurities E (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 2,500 mg/kg
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: ICH-TXM4

Precious Metal Impurities B without Os, 100 mg/kg (125 mL)

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  • Brand Spex
  • Matrix 15% HCl
  • Concentration 100 mg/kg
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: ICH-TXM3

Precious Metal Impurities B with Os, 100 mg/kg (125 mL)

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  • Brand Spex
  • Matrix 15% HCl
  • Concentration 100 mg/kg
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: ICH-TXM2

Oral Elemental Impurities A (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 25 mg/kg
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
SKU: IC-GLY-M

Glycolate at 1,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IC-FF-10M

Fluoride from Sodium Fluoride at 10,000 µg/mL in H2O

  • CCL
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  • Brand HPS
  • Matrix H2O
  • Concentration 10,000 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IC-FF-10

Fluoride from Sodium Fluoride at 10 µg/mL in H2O

  • CCL
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  • Brand HPS
  • Matrix H2O
  • Concentration 10 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IC-CLO3-M

Chlorate from Sodium Chlorate at 1,000 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
SKU: IC-CL-10

Chloride from Sodium Chloride at 10 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 10 µg/mL
  • Raw Material Three 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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