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The International System of Units (SI)

For related documents see the Physics Laboratory Selected Publications and SI Units pages.

graphic of cover page


United States of America Editor:

Barry N. Taylor
National Institute of Standards and Technology
Gaithersburg, MD 20899

Approved translation of the sixth edition (1991)
of the International Bureau of Weights and Measures publication
Le Système International d' Unités (SI)

(Supersedes NBS Special Publication 330 1986 Edition)

Department of Commerce Emblem

Issued August 1991

U.S. Department of Commerce
Robert A. Mosbacher, Secretary

National Institute of Standards and Technology
John W. Lyons, Director

Adapted to HTML by Gloria Wiersma
October 1996