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.

Energy

Conventional energy

News and Updates

diagram of gas tank

Weighing Gas with Sound and Microwaves

Scientists at the National Institute of Standards and Technology (NIST) have developed a novel method to rapidly and accurately calibrate gas flow meters, such

Projects and Programs

NIST researchers measuring a flow profile

Smoke Stack Flow Measurement

Ongoing
Presently used methods to measure CO2 and other emissions from smoke stacks have errors of 20 % or more depending on the level of swirl in the flow. The

Fossil Fuel Standard Reference Materials

Ongoing
To support regulatory and industry requirements for reference materials and standards, NIST produces and maintains a large inventory of fossil fuel SRMs that

Publications