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Drinking Water Standards

Drinking water is susceptible to numerous harmful contaminants, prompting the EPA to establish rigorous regulations for over 90 pollutants, encompassing 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. Our offerings include specific drinking water pH standards, as well as 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 and reliable laboratory analysis.
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SKU: CWW-TOC-C

Total Organic Carbon at 20 µg/mL in H2O (5 mL)

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  • Brand HPS
  • Matrix H2O
  • Concentration 20 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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SKU: CWW-TOC-B

Total Organic Carbon at 10 µg/mL in H2O (5 mL)

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  • Brand HPS
  • Matrix H2O
  • Concentration 10 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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SKU: CWW-CN-F

Cyanide Solution at 0.7 µg/mL Total Cyanide in 0.5% KOH (10 mL)

  • CCL
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  • Brand HPS
  • Matrix 0.5% KOH
  • Concentration 0.35 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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SKU: CWW-CN-D

Cyanide Solution at 0.04 µg/mL Total Cyanide in 0.5% KOH (10 mL)

  • CCL
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  • Brand HPS
  • Matrix 0.5% KOH
  • Concentration 0.02 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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SKU: CWW-CN-C

Cyanide Solution at 1.0 µg/mL Total Cyanide in 0.5% KOH (10 mL)

  • CCL
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  • Brand HPS
  • Matrix 0.5% KOH
  • Concentration 0.5 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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SKU: CWW-CN-B

Cyanide Solution at 0.2 µg/mL Total Cyanide in 0.5% KOH (10 mL)

  • CCL
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  • Brand HPS
  • Matrix 0.5% KOH
  • Concentration 0.1 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/IC Confirmation
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SKU: CS-NH49-2Y

Ammonium (NH4+) Single-Element Ion Cation Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix H2O
  • Concentration 1,000 µg/mL
  • Measured Impurities 68 elements to ppm (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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SKU: CS-NA2-2Y

Sodium (Na+) Single-Element Ion Cation Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix 0.2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 68 elements to ppm (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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SKU: CS-MG2-2Y

Magnesium (Mg2+) Single-Element Ion Cation Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix 0.2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 68 elements to ppm (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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SKU: CS-LI2-2Y

Lithium (Li+) Single-Element Ion Cation Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix 0.2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 68 elements to ppm (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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SKU: CS-K2-2Y

Potassium (K+) Single-Element Ion Cation Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix 0.2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 68 elements to ppm (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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SKU: CS-CA2-2Y

Calcium (Ca2+) Single-Element Ion Cation Standard, 1,000 µg/mL (1,000 ppm) (125 mL)

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  • Brand Spex
  • Matrix 0.2% HNO3
  • Concentration 1,000 µg/mL
  • Measured Impurities 68 elements to ppm (product)
  • Raw Material Five 9s & Purification as available
  • Certification Dual: Wet Chem, ICP Direct & ICPMS Impurities
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