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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
’Twas the night before Christmas; NIST staff had gone home. Our director was left to reflect all alone. She thought about NIST and the breadth of its work, from
A lot has changed at the National Institute of Standards and Technology (NIST) in the past 120 years. For one thing, we were known as the National Bureau of