FAQ

Are my certified reference materials (CRMs) NIST* traceable?

28 Aug 2025

Yes! Reference standards manufactured within our scopes of our accreditation (i.e., CRMs) are traceable as follows:

  • All analytical balances are verified at seven mass levels daily using NIST traceable weights and are also calibrated yearly by an ISO/IEC 17025–accredited provider to guarantee accurate measurement.
  • Volume is assured by using Class A volumetric flasks and/or Class A pipettes.
  • Raw materials are characterized to confirm identity and purity using two or more of the following techniques: GC-FID, HPLC, GC-ECD, GC-MS, LC-MS, refractive index, and melting point.
  • Only the purest materials available are used; any material with purity less than 99% is weight corrected.

* National Institute of Standards and Technology

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作者

  • Restek Corporation

    Restek is a leading provider of chromatography columns, accessories, and certified reference materials. Trust Restek for reliable, high-quality analytical solutions.

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