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Explore the broadest selection of analytical reference materials and proficiency testing (PT) from the leading brands in certified and analytical reference materials: Spex, NSI, HPS, and Chiron.

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SKU: CMPT-078B

Water Activity in Edible PT Express (2 pack)

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  • Brand NSI
  • Matrix Edible
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: CMPT-078

Water Activity in Edible (2 pack)

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  • Brand NSI
  • Matrix Edible
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: SPE-116

TPH in Soil

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  • Brand NSI
  • Matrix Soil
  • Certification Single: Gravimetric and/or Volumetric
SKU: SPE-115

Diesel in Soil

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  • Brand NSI
  • Matrix Soil
  • Certification Single: Gravimetric and/or Volumetric
SKU: SPE-114

Gasoline in Soil

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  • Brand NSI
  • Matrix Soil
  • Certification Single: Gravimetric and/or Volumetric
SKU: SPE-113

PVOC in Soil

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  • Brand NSI
  • Matrix Soil
  • Certification Single: Gravimetric and/or Volumetric
SKU: 183134

0.0473 N Iodine, 1 Gallon in Amber Glass Bottle

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  • Brand Spex
  • Certification Single: Wet Chemistry
  • Concentration 0.0473 N
  • Matrix H2O
SKU: 182002

0.0394 N Sodium Thiosulfate, 1 Gallon in Cubitainer

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  • Brand Spex
  • Certification Single: Wet Chemistry
  • Concentration 0.0394 N
  • Matrix H2O/0.5% Amyl Alcohol
  • Top rated
SKU: CANN-INHL1

USP 232 REVISION 40 INHALATION 1

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  • Brand Spex
  • Matrix 5% HNO3
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
SKU: SPEI-011

Nitroaromatics

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  • Brand NSI
  • Certification Single: Gravimetric and/or Volumetric
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: 10-70-2

Osmium at 10 µg/mL in 2% HCl

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  • Brand HPS
  • Matrix 2% HCl
  • Concentration 10 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
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