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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!

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  • KIT
SKU: INTER-SET

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

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  • Brand Spex
  • Matrix Multiple
  • Concentration 6,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INTER5-500

Assurance® Interference Check Standard 5 for AA & ICP (500 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 6,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INTER5-100

Assurance® Interference Check Standard 5 for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 6,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INTER18-500N

Assurance® Interference Check Standard 18 without Mercury for AA & ICP (500 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 20,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SKU: INTER18-500

Assurance® Interference Check Standard 18 with Mercury for AA & ICP (500 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 20,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INTER18-100N

Assurance® Interference Check Standard 18 without Mercury for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 20,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SKU: INTER18-100

Assurance® Interference Check Standard 18 with Mercury for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 5% HNO3
  • Concentration 20,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INT-B3

ICP Analytes B3 (125 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid/tr. HF
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INT-B2

ICP Alternate Interferents B (500 mL)

  • CCL
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  • Brand Spex
  • Matrix 5% HNO3/tr. Tartaric Acid/tr. HF
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INT-B1

ICP Analytes B1 (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
SKU: INT-A2

ICP Alternate Interferents A, 1,000 µg/mL (1,000 ppm) (500 mL)

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  • Brand Spex
  • Matrix 5% HNO3/tr. F-
  • Concentration 1,000 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: INT-A1

ICP Interferents A1 (500 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
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