Attention Calibration customers: Note that the annual price change will take place on or after February 1st 2023. Orders placed after that date will reflect the new prices. Quotes obtained within 30 days prior to the price change will be placed with the previous FY22 price.

NOTE: For Standard Reference Material Orders: Please select "Standard Reference Materials" above to browse available products, or search products by name, keywords or SRM number from the search bar.

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The calibration services of the National Institute of Standards and Technology (NIST) are designed to help the makers and users of precision instruments achieve the highest possible levels of measurement quality and productivity.

See Calibration FAQs
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Standard Reference Data

For over 50 years, NIST has developed and distributed Standard Reference Data in Chemistry, Engineering, Fluids and Condensed Phases, Material Sciences, Mathematical and Computer Sciences and Physics.

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Standard Reference Materials

NIST supports accurate and compatible measurements by certifying and providing over 1200 Standard Reference Materials® with well-characterized composition or properties, or both.

See SRM FAQs Archived Certificates