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.

News and Updates

Displaying 1 - 9 of 9

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