Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Standard Reference Materials are certified reference materials (CRMs) that can be used to help develop accurate methods of analysis, to calibrate measurement systems used to measure a property at the state-of-the-art limit.
Standard Reference Data cover a broad range of scientific disciplines including atomic and molecular physics, chemical and crystal structures, fluids, material properties, biotechnology, optical character recognition and more. Data products include web applications, personal computer products, site licenses, subscriptions and distributor agreements. The SRD data program includes the Journal of Physical and Chemical Reference Data.

News

Events

Bias in AI Workshop

Tue, Aug 18 2020, 9:00am - 5:00pm EDT
The workshop was originally scheduled to be held at NIST Gaithersburg, MD. While we strive to accommodate global

Build a Cell Workshop #7

Fri, Aug 21 2020
NIST is closely monitoring guidance from Federal, State, and local health authorities on the outbreak of COVID-19. To