Skip to main content
U.S. flag

An official website of the United States government

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.

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.

Monday, September 19, 2022 is the last day that we will ship dry-ice, hazardous, and international orders.

Tuesday, September 20, 2022 is the last day that we will accept domestic non-hazardous orders for immediate shipment prior to inventory.

Wednesday, September 21, 2022 through Friday, September 30, 2022 – orders can be taken, but shipping will not occur.  

Monday, October 3, 2022 - all orders will begin to be shipped.

PLEASE NOTE UPCOMING CHANGE TO SRM ORDERING. 
SRMs will soon be available on the NIST Storefront at https://shop.nist.gov 
This message will be updated when SRM ordering moves to the Storefront.

Due to world events, all shipping to Russia, Belarus, and Ukraine have ceased.  As a result, the Office of Reference Materials will not be accepting or processing orders to these countries for the foreseeable future. 

Search for Materials - Find an SRM/RM

 
 

NOTE: If you have problems with the SRM search feature, click here for instructions on how to upgrade your browser settings.

Browse SRMs by Technical Category

News and Updates

Projects and Programs

Awards

Press Coverage

Contacts

  • NIST Office of Reference Materials
    (301) 975-2200
    100 Bureau Drive
    Stop 2300
    Gaithersburg, MD 20899
  • Technical Applications