Active Standard

IEEE 260.1-2024

IEEE Draft Standard Letter Symbols for Units of Measurement (SI Units, Customary Inch-Pound Units, and Certain Other Units)

Letter symbols and corresponding units for SI and other common measurement units are covered in this standard.

Sponsor Committee
BOG/QUSCom - Quantities, Units, and Symbols Standards Committee
Status
Active Standard
PAR Approval
2016-09-22
Superseding
260.1-2004
Board Approval
2024-02-15

Working Group Details

Society
IEEE SA Board of Governors
Sponsor Committee
BOG/QUSCom - Quantities, Units, and Symbols Standards Committee
Working Group
P260.1 Revision - P260.1 Revision Working Group
IEEE Program Manager
Jennifer Santulli
Contact Jennifer Santulli
Working Group Chair
Randall Curey

Other Activities From This Working Group

Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.


No Active Projects

Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.


1541-2021

IEEE Standard for Prefixes for Binary Multiples

Names and letter symbols for prefixes that denote multiplication of a unit by the binary multiplier 2 10n, where n = 1, 2, 3, 4, 5, 6, 7, or 8 are defined. Although the prefixes may be used with all units in all fields where multiplication by a binary multiplier is found to be appropriate, their primary use is in the field of information technology.

Learn More About 1541-2021

These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.


No Superseded Standards

These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.


No Inactive-Withdrawn Standards

These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.


1541-2002

IEEE Standard for Prefixes for Binary Multiples

Reaffirmed 2008. Names and letter symbols for prefixes that denote multiplication of a unit by the binary multiplier 2 10 n ,where n =1,2,3,4,5,or 6 are defined. Although the prefixes may be used with all units in all fields where multiplication by a binary multiplier is found to be appropriate, their primary use is in the field of information technology.

Learn More About 1541-2002

260.1-2004

IEEE Standard Letter Symbols for Units of Measurement (SI Customary Inch-Pound Units, and Certain Other Units)

Revision of IEEE Std 260.1-1993, Letter symbols for units of measurement are covered in this standard.

Learn More About 260.1-2004

280-1982

IEEE Standard Letter Symbols for Quantities Used in Electrical Science and Electrical Engineering

Letter symbols used to represent physical quantities in the field of electrical science and electrical engineering are defined. The symbols are independent of the units employed or special values assigned. Also included are selected symbols for mathematics and for physical constants.

Learn More About 280-1982

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