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High-Quality Analytical Reference Materials Spex | NSI | HPS | Chiron

Precision & Accuracy for Every Analysis

Ensure the highest confidence in your laboratory results with high-quality reference materials from industry-leading brands: Spex, NSI, HPS, and Chiron. Our extensive selection supports environmental, food safety, pharmaceutical, toxicology, cannabis, and industrial testing.

Our Reference Materials Include:

  • Inorganic Standards – Trace metals, ICP, ICP-MS, AAS, and wet chemistry solutions
  • Organic Standards – Pesticides, PCBs, PAHs, VOCs, SVOCs, and more
  • Microbiology Standards – Quantitative and qualitative reference materials for pathogen detection, sterility testing, and microbial analysis
  • Proficiency Testing (PT) Samples – Validate accuracy with external quality controls
  • Custom Standards – Tailored solutions to meet your lab’s specific needs – Fill out your custom request today!

Why Choose Us?

  • ISO 17034 & ISO 17025 Accreditation – Certified for reliability and traceability
  • Compliance with EPA, AOAC, ASTM, ISO, and other global regulations
  • High-Purity Materials – Ensuring precision in every analysis
  • Expert Support – Technical assistance to optimize your testing process

Get Started Today

Explore our full range of analytical and microbiology reference materials.

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9,246 Items found

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SKU: UST-290

EPH Surrogate Mix

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-280

EPH Fractionation Check Std

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-270

WA EPH Aromatic Hydrocarbon

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-260L

WA EPH Aromatic Hydrocarbon

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-250

MA EPH Aromatics Standard

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-240

Primary VPH Standard (Mass.)

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
SKU: UST-230

PA DEP UST Mix

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

Diesel Fuel

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  • Brand NSI
  • Certification Gravimetric and/or Volumetric
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