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Certified Reference Materials for Drinking Water Analysis

Drinking water is susceptible to numerous harmful contaminants, prompting the EPA to establish rigorous regulations for more than 90 pollutants, including microorganisms, inorganic chemicals, organic chemicals, disinfectants, and disinfection by-products.

We provide an extensive range of certified reference materials (CRMs) tailored for comprehensive drinking water analysis. Offerings include drinking water pH standards and testing standards for residual free chlorine, turbidity, trace metals, mercury, fluoride, and nitrite.

Our drinking water standards are essential for maintaining water quality, safeguarding public health, and supporting accurate, reliable laboratory analysis.

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SKU: CALMIX3-100

Assurance® Instrument Check Standard 3 for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 5% HCl
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: CALMIX10-500

Assurance® Instrument Check Standard 10 for AA & ICP (500 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: CALMIX10-100

Assurance® Instrument Check Standard 10 for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 500 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
SKU: BTEX-H

BTEX Standard, 2,000 µg/mL

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  • Brand Spex
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Concentration 2,000 μg/mL
  • Matrix Methanol-P&T
  • Raw Material >95% min; as available
  • Top rated
SKU: BTEX

BTEX Standard, 200 µg/mL

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  • Brand Spex
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Concentration 200 µg/mL
  • Matrix Methanol-P&T
  • Raw Material >95% min; as available
  • Top rated
SKU: BIG-BN-2

Base Neutral & Acid Combination Calibration Standard, 2,000 µg/mL (1 mL)

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  • Brand Spex
  • Matrix Methylene Chloride:Benzene
  • Concentration 2,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: BD-3515

Tricaprin Glyceride Impurity Standards (1 mL)

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  • Brand Spex
  • Matrix Pyridine
  • Concentration 8,000 µg/mL (8,000 ppm)
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
  • Top rated
SKU: BD-3514

(S)-1,2,4-Butanetriol Glyceride Impurity Standards (1 mL)

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  • Brand Spex
  • Matrix Pyridine
  • Concentration 1,000 μg/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. &/or Volume w/Analytical Confirm
SKU: AU-CN-1000

Gold from Gold Metal at 1,000 µg/mL in 0.5% NaCN + 0.1N NaOH

  • CCL
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  • Brand HPS
  • Matrix 0.5% NaCN & 0.1N NaOH
  • Concentration 1,000 µg/mL
  • Raw Material Three 9s as available, no purification
  • Certification Single: Gravimetric w/IC Confirmation
SKU: AU-CN-10

Gold Metal at 10 µg/mL in 0.05% NaCN + 0.1N NaOH (500 mL)

  • CCL
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  • Brand HPS
  • Matrix 0.01% NaCN & 0.1N NaOH
  • Concentration 10 µg/mL
  • Raw Material Three 9s as available, no purification
  • Certification Single: Gravimetric w/IC Confirmation
SKU: AU-CN-1

Gold from Gold Metal at 1 µg/mL in 0.05% NaCN + 0.1N NaOH (500 mL)

  • CCL
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  • Brand HPS
  • Matrix 0.01% NaCN & 0.1N NaOH
  • Concentration 1 µg/mL
  • Raw Material Three 9s as available, no purification
  • Certification Single: Gravimetric w/IC Confirmation
  • Top rated
SKU: AS-SO4S9-2Y

Sulfate-Sulfur Single-Element Ion Anion Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix Water
  • Concentration 1,000 µg/mL
  • Measured Impurities 6 Anion impurities to ppm
  • Raw Material Min three 9s &/purification as available
  • Certification Dual: Wet Chem, IC Direct Analysis & Impurities
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