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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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5,656 Items found

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WI DRO Mixture WI DRO Mixture
SKU: UST-370

WI DRO Mixture

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
WI PVOC/GRO Standard WI PVOC/GRO Standard
SKU: UST-360

WI PVOC/GRO Standard

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
MA VPH Standard MA VPH Standard
SKU: UST-310

MA VPH Standard

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
Primary VPH Stock Std (WA) Primary VPH Stock Std (WA)
SKU: UST-300

Primary VPH Stock Std (WA)

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
WA VPH Stock Standard WA VPH Stock Standard
SKU: UST-300L

WA VPH Stock Standard

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
EPH Surrogate Mix EPH Surrogate Mix
SKU: UST-290

EPH Surrogate Mix

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
EPH Surrogate Mix EPH Surrogate Mix
SKU: UST-290H

EPH Surrogate Mix

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
EPH Fractionation Check Std EPH Fractionation Check Std
SKU: UST-280

EPH Fractionation Check Std

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
WA EPH Aromatic Hydrocarbon WA EPH Aromatic Hydrocarbon
SKU: UST-270

WA EPH Aromatic Hydrocarbon

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
WA EPH Aromatic Hydrocarbon WA EPH Aromatic Hydrocarbon
SKU: UST-260L

WA EPH Aromatic Hydrocarbon

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
MA EPH Aromatics Standard MA EPH Aromatics Standard
SKU: UST-250

MA EPH Aromatics Standard

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
Primary VPH Standard (Mass.) Primary VPH Standard (Mass.)
SKU: UST-240

Primary VPH Standard (Mass.)

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
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