An official website of the United States government
Here’s how you know
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.
https://www-test.ct.nist.gov/srm
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.
Users of a NIST SRM or RM should ensure that the certificate/report in their possession is current. Find Current SRM/RM Certificates, Reports of Investigation, and Safety Data Sheets using the NIST Store’s Product Search Box.
Due to world events, all shipping to Russia, Belarus, and Ukraine has ceased. As a result, the Office of Reference Materials will not be accepting or processing orders to these countries for the foreseeable future.
This reference material is intended to be used as quality assurance/quality control material for laboratory metabolomic measurements. Products of metabolism act
Electrolytes are essential biomarkers for skeletal and cellular health. Abnormal levels of electrolytes may either be the cause or the consequence of various
The amplification of the gene for HER2 occurs in approximately 20 to 25% of breast cancers. The accurate measurement of this biomarker is important for the proper treatment with anti-HER2 therapeutics. Clinical laboratories are beginning to utilize accurate and sensitive diagnostic tests based on
Melissa Phillips and NIST collaborators explain why NIST reference materials are so important to industry, monitoring environmental and human health, and much