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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.

Please be aware all offices will be closed on Monday, February 19, 2024.

SRMs are available for order at the NIST store, 
Please update your bookmarks with our new web address.
Find Current SRM/RM Certificates, Reports of Investigation, and Safety Data Sheets using the NIST Store’s Product Search Box.


The NIST Charpy Machine Verification Program is introducing certified
low-energy and high-energy Charpy specimens to be tested at 21 °C 
instead of -40 °C. Additional information can be found at
Charpy Machine Verification Program.

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. 

News and Updates

Kidney Disease Diagnosis and Monitoring

Kidney disease is a major global public health issue, with c hronic kidney disease (CKD) representing the 12 th highest cause of death worldwide. It has been

Standards for Tracking PFAS Contaminants

Aqueous film forming foams (AFFFs) containing PFAS have been used since the 1960s for fire control and training for aviation crash and jet fuel spills at

Projects and Programs


Press Coverage

Setting Standards for Stool

Microbiome studies have yielded hundreds of ideas for ways to detect and influence human health, but the field struggles with reproducibility...


General Inquiries about NIST SRMs