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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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9,169 Items found

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SKU: DWSS

4 Component Secondary Drinking Water Metals in 2% HNO3

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  • Brand HPS
  • Matrix 2% HNO3
  • Concentration Multiple
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
  • Top rated
  • KIT
SKU: DW-SETN

Drinking Water Standards without Mercury for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix 2% HNO3
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
  • Top rated
  • KIT
SKU: DW-SET

Drinking Water Standards with Mercury for AA & ICP (125 mL)

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  • Brand Spex
  • Matrix Multiple
  • Concentration 100 µg/mL
  • Raw Material Five 9s & Purification as available
  • Certification Single: Direct ICP Analysis
SKU: DWPS-B

1 Component Primary Drinking Water Metals in 2% HNO3 + Tr HF Solution B

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  • Brand HPS
  • Matrix 5% HNO3
  • Concentration 20 µg/mL
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: DWPS-A

7 Component Primary Drinking Water Metals in 2% HNO3 + Tr HF Solution A

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  • Brand HPS
  • Matrix 2% HNO3 & Tr HF
  • Concentration Multiple
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
SKU: DWPS

8 Component Primary Drinking Water Metals in 2% HNO3 + Tr HF

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  • Brand HPS
  • Matrix 2% HNO3 + Tr HF
  • Concentration Multiple
  • Raw Material Five 9s as available; no purification
  • Certification Single: Gravimetric w/ICP Confirmation
  • KIT
SKU: DSS8-SET

Set of 8 Sulfur Oil Standards (100 mL)

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  • Brand Spex
  • Matrix Base Oil 20
  • Concentration 500 µg/g
SKU: DSS8-CY

Sulfur Oil Standard for Diesel Fuel Analysis, 300 µg/g (100 mL)

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  • Brand Spex
  • Matrix Base Oil 20
  • Concentration 300 µg/mL
SKU: DSS8-75Y

Sulfur Oil Standard for Diesel Fuel Analysis, 75 µg/g (100 mL)

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  • Brand Spex
  • Matrix Base Oil 20
  • Concentration 75 µg/g (75 ppm)
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