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NIST Metallurgy Division-Rockwell Hardness

Sam Low (NIST Metallurgy) 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

New Website Search Feature!

NVLAP has added a brand new feature to its website! Using the new searchable products list, you can easily browse our inventory of Test Methods and Calibration Parameters. Click on the tab “Search for Test Methods & Calibration Parameters" under our Popular Links.

Recent Lab Bulletin Releases

Lab Bulletin LB-93-2016, Use of Computerized Systems for the Recording of Bulk Asbestos Analysis Data, issued on March 4, 2016

Lab Bulletin LB-90-2015, Addition of IEC 60081:A5 2013 to Scopes of Accreditation, issued on November 20, 2015

Lab Bulletin LB-89-2015, Addition of ANSI C82.77-10:2014 to Scopes of Accreditation, issued on July 14, 2015

Lab Bulletin LB-88-2015, Addition of IEC 62301:2011 to Scopes of Accreditation, issued on July 14, 2015

Lab Bulletin LB-87-2015, Restructuring of the On-Site Assessment Process in the Cryptographic and Security Testing (CST) Laboratory Accreditation Program (LAP), issued on June 30, 2015

Lab Bulletin LB-86-2015, 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, issued on June 30, 2015

Lab Bulletin LB-85-2015, Calibration Certificates for In-house Calibrations, issued on February 24, 2015

Lab Bulletin LB-84-2015, Addition of the 2014 Edition Release 2 Certification Criteria for EHR Technology to the HIT LAP, issued on February 12, 2015


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:
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301-926-2884 Facsimile

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E-mail: nvlap@nist.gov

Web URL: www.nist.gov/nvlap/