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.

Taking Measure

Just a Standard Blog

Conformity assessment

A researcher wearing a lab coat uses tongs to place a silvery sphere into a large scientific device as another researcher looks on.

One of the World’s Roundest Objects Is Helping to Build a Better Mass Measurement

July 17, 2024

Different countries' approaches can lead to different definitions of the kilogram. But NIST is working with our international partners to see how we can close

A Step in the Right Direction: Building a Better Army Boot

February 4, 2020

Perhaps for as many as 40,000 years, people have been protecting their feet with some type of covering, initially using animal hides and fur. Today, footwear

Our Science in Your Inbox

Subscribe to our weekly emails.

Taking Measure

Conformity assessment

One of the World’s Roundest Objects Is Helping to Build a Better Mass Measurement

A Step in the Right Direction: Building a Better Army Boot

Our Science in Your Inbox

Search

Stay connected

Categories