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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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4,645 Items found

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TNRCC 1006 Retention Time Std TNRCC 1006 Retention Time Std
SKU: UST-503

TNRCC 1006 Retention Time Std

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
TX TPH Calibration Mix TX TPH Calibration Mix
SKU: UST-501

TX TPH Calibration Mix

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

EPH Surrogate Mix

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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
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
Waste Motor Oil Waste Motor Oil
SKU: UST-185

Waste Motor Oil

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
Diesel Fuel Diesel Fuel
SKU: UST-145

Diesel Fuel

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
Unleaded Gas Composite Unleaded Gas Composite
SKU: UST-135

Unleaded Gas Composite

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
Unleaded Gas Composite Unleaded Gas Composite
SKU: UST-130

Unleaded Gas Composite

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
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