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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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Elemental Impurities E (125 mL) Elemental Impurities E (125 mL)
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
Precious Metal Impurities B without Os, 100 mg/kg (125 mL) Precious Metal Impurities B without Os, 100 mg/kg (125 mL)
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
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Precious Metal Impurities B with Os, 100 mg/kg (125 mL) Precious Metal Impurities B with Os, 100 mg/kg (125 mL)
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
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Oral Elemental Impurities A (125 mL) Oral Elemental Impurities A (125 mL)
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
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Instrument Calibration Standard 4 (500 mL) Instrument Calibration Standard 4 (500 mL)
SKU: ICAL-4A-500

Instrument Calibration Standard 4 (500 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
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Instrument Calibration Standard 4 (125 mL) Instrument Calibration Standard 4 (125 mL)
SKU: ICAL-4A

Instrument Calibration Standard 4 (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
Instrument Calibration Standard 3 (125 mL) Instrument Calibration Standard 3 (125 mL)
SKU: ICAL-3

Instrument Calibration Standard 3 (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 2,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
Instrument Calibration Standard 2 (125 mL) Instrument Calibration Standard 2 (125 mL)
SKU: ICAL-2

Instrument Calibration Standard 2 (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 400 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
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Instrument Calibration Standard 1, 5,000 µg/mL (5,000 ppm) (125 mL) Instrument Calibration Standard 1, 5,000 µg/mL (5,000 ppm) (125 mL)
SKU: ICAL-1

Instrument Calibration Standard 1, 5,000 µg/mL (5,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 5,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
Sulfate from Sodium Sulfate at 1,000 µg/mL in H2O Sulfate from Sodium Sulfate at 1,000 µg/mL in H2O
SKU: IC-SS-M

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

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  • Brand HPS
  • Matrix H2O
  • Concentration 1,000 µg/mL
Sulfate from Sodium Sulfate at 100 µg/mL in H2O Sulfate from Sodium Sulfate at 100 µg/mL in H2O
SKU: IC-SS

Sulfate from Sodium Sulfate at 100 µg/mL in H2O

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  • Brand HPS
  • Matrix H2O
  • Concentration 100 µg/mL
Sulfate from Sodium Sulfate at 10,000 µg/mL in H2O Sulfate from Sodium Sulfate at 10,000 µg/mL in H2O
SKU: IC-SS-10M

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

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  • Brand HPS
  • Matrix H2O
  • Concentration 10,000 µg/mL
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