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ISO 17034 certified reference materials for physical testing such as pH, turbidity, color, and visual examinations (e.g., filth). Certified for a broad array of physical testing applications including UV/VIS, pH, turbidimetry, nephelometry, conductivity, and microscopic examination.

Density

Density is a fundamental property in chemistry and physics that defines the mass per unit volume of a substance, typically measured as 1 cubic centimeter for solids or 1 mL for liquids.

Conductivity

Spex® CertiPrep offers conductivity standards for calibration and quality control of testing and monitoring equipment.

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  • Brand NSI
  • Matrix Edible
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
  • Brand NSI
  • Matrix Hemp
  • Concentration 50,000 cells/mL
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
  • Brand Spex
  • Matrix H2O
  • Concentration 650 PPM
  • Brand Spex
  • Matrix H2O
  • Concentration 65 PPM
  • Brand Spex
  • Certification Single: Wet Chemistry
  • Concentration 12 SI Units
  • Matrix H2O
  • Brand Spex
  • Certification Single: Wet Chemistry
  • Concentration 11 SI Units
  • Matrix H2O
  • Brand Spex
  • Concentration 2 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
  • Brand Spex
  • Concentration 3 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
  • Brand Spex
  • Concentration 4 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
  • Brand Spex
  • Concentration 5 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
  • Brand Spex
  • Concentration 6 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
  • Brand Spex
  • Concentration 7 SI Units
  • Matrix H2O
  • Raw Material Five 9s & Purification
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