Skip to Main Content

Select country

Select your country

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.

Categories and filters

Filter / Sorting

Categories

Brand

Classification

Accreditations

Product Type

Regulatory Method

Instrument / Test

Analyte - Single / Multi

CAS #

Strain

Analyte / Component

Microorganism

6,011 Items found

Per Page:
Sort by:
SKU: UST-300L

WA VPH Stock Standard

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-300

Primary VPH Stock Std (WA)

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-290H

EPH Surrogate Mix

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-290

EPH Surrogate Mix

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-280

EPH Fractionation Check Std

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-270

WA EPH Aromatic Hydrocarbon

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-260L

WA EPH Aromatic Hydrocarbon

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-250

MA EPH Aromatics Standard

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-240

Primary VPH Standard (Mass.)

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-230

PA DEP UST Mix

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-225

Fuel Oil No.8

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-220

Fuel Oil No.8

Login to view pricing
  • Brand NSI
  • Certification Gravimetric and/or Volumetric
AlertAlertBrowse fileDownload fileFileImagePdfWordTextExcelPowerpointArchiveCsvAudioVideoSpinnerCalendarReturn arrowMinusVisibleInvisibleVisibleInvisibleConfigure