Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.


Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

SRM Licensed Distributors


In order to facilitate the world-wide distribution of its Standard Reference Materials (SRMs), the National Institute of Standards and Technology (NIST) has established a licensed distributor program. The non-exclusive limited distribution license enables a distributor to purchase SRMs from NIST and resell them into the distributor's market using NIST's registered marks Standard Reference Material® and SRM®. Licensed distributors must themselves hold a valid ISO Guide 34 accreditation as a producer of Certified Reference Materials. Accreditation shall be from a body that is a member of the International Laboratory Accreditation Cooperation (ILAC). The scope of the accreditation determines the scope of the NIST SRM inventory over which the distributor license applies.

NIST is pleased to announce that the NIST SRM Program now has these licensed distributors:

More details can be found in the Non-Exclusive Limited Distribution Agreement

For further information, contact:
Dr. Steven J. Choquette, Director
Office of Reference Materials
National Institute of Standards and Technology
100 Bureau Drive MS2300
Gaithersburg, MD 20899-2300
Voice: 301-975-3096
Fax: 301-926-4751

Created January 20, 2016, Updated April 2, 2020