Schlamminger, S.
(2021),
Redefining the kilogram and other SI units, IOP, London, , [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925757
(Accessed April 30, 2025)
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.
Redefining the kilogram and other SI units
Published
Author(s)
Abstract
Units are at the heart of science and technology. Most measurements require units to express their result. The International System of Units (SI) provides a widely used coherent framework of units. While the present SI is fit for purpose for all measurements, it has several shortcomings. Most notably, the kilogram is defined via an artifact that limits its realization to a specific place and certain times. To solve this problem and to take advantage of advances in quantum metrology made in the last 50 years, a revision of the SI is planned. This revision will modify the foundation of the SI from base units to fundamental constants of nature. While the revision presents a huge shift in philosophy, the size of the units will not change, and hence the revision will go mostly unnoticed.Citation
Redefining the kilogram and other SI units
Publisher Info
IOP, London,
Pub Type
Books
Download Paper
Keywords
Revision of the SI
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created February 9, 2021, Updated March 1, 2021