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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.

Our harmonized product development and custom capabilities are tailored to bring you innovative products to help meet your unique application needs.

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5,915 Items found

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SKU: UST-225

Fuel Oil No.8

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-220

Fuel Oil No.8

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-185

Waste Motor Oil

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-180

Waste Motor Oil

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: SQCI-037B

Oil and Grease in Soil – Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: SPEI-037

Oil and Grease in Soil

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  • Brand NSI
  • Matrix Soil
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QCO-072B

NPW - PCBs in Oil - Blind

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  • Brand NSI
  • Matrix Hemp Oil
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCO-072

NPW - PCBs in Oil

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  • Brand NSI
  • Matrix Hemp Oil
  • Raw Material >95% min; as available
  • Certification Grav &/ Volumetric w/analytical confirmation
SKU: QCI-029B

Oil & Grease Concentrate - Blind

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Gravimetric and/or Volumetric
SKU: QC-003SNIP

Oil and Grease Method 1664 - Recovery Standard (0.4%) Snip™

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
SKU: QC-003LSNIP

Oil and Grease Method 1664 - Recovery Standard (0.2%) Snip™

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  • Brand NSI
  • Raw Material >95% min; as available
  • Certification Single: Grav. w/Analytical Confirmation
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