IEEE/ASTM SI 10:2002

Revision Standard - Superseded.
Guidance for the use of the modern metric system is given. Known as the International System of Units (abbreviated SI), the system is the basis for worldwide standardization of measurement units.Information is included on SI, a list of units recognized for use with SI, and a list of conversion factors, together with general guidance on proper style and usage.
http://standards.ieee.org/reading/ieee/updates/errata/SI10-2002.pdf

This document is the primary American National Standard for use of the International System of units (SI). It includes information on SI, a limited list of units recognized for use with SI, and a list of conversion factors, together with general guidance on style and usage. The scope from the previous PAR was as follows: "Prepare the primary standard on metric practice for use in the United States. The word "primary" implies that other metric standards in the U.S. should be consistent with this document."
The purpose of the standard is to give guidance on the use of SI. A revision is required to bring the standard into line with current international recommendations.