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NIST Metallurgy Division-Rockwell Hardness

Sam Low (NIST Metallugy) at the primary Rockwell hardness reference machine for the U.S.

Cameron Miller with integrating sphere

Cameron Miller (NIST Optical Technology) at NIST 2.5 m integrating sphere for LED measurements.

Gina Kline - Process Measurements Division

Gina Kline (NIST Process Measurements) recording data over PVTt primary gas flow standard.

News & Announcements

Lab Bulletin LB-89-2015 released, Addition of ANSI C82.77-10:2014 to Scopes of Accreditation

Lab Bulletin LB-88-2015 released, Addition of IEC 62301:2011 to Scopes of Accreditation

Lab Bulletin LB-87-2015 released, Restructuring of the On-Site Assessment Process in the Cryptographic and Security Testing (CST) Laboratory Accreditation Program (LAP)

Lab Bulletin LB-86-2015 released, Addition of New Requirements to NIST Handbook 150-17, Annex B, Regarding the Use of Extended Cost Recovery (ECR) Points as a Means of Monitoring Technical Proficiency

Lab Bulletin LB-85-2015 released, Calibration Certificates for In-house Calibrations


The National Voluntary Laboratory Accreditation Program (NVLAP) provides third-party accreditation to testing and calibration laboratories in response to legislative actions or requests from government agencies or private-sector organizations.

NVLAP-accredited laboratories are assessed against the management and technical requirements published in the International Standard, ISO/IEC 17025:2005.


General inquiries:
301-975-4016 Telephone
301-926-2884 Facsimile

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Gaithersburg, MD 20899-2140


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