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.
- Sponsor Committee
- SASB/SCC14 - SCC14 - Quantities, Units and Letter Symbols Committee
- Status
- Inactive-Reserved Standard
- Superseded by
- 280-2021
- Board Approval
- 1982-09-23
- History
-
- ANSI Approved:
- 1992-05-06
- Published:
- 1984-12-12
- Reaffirmed:
- 2003-03-20
- Inactivated Date:
- 2021-03-25
Working Group Details
- Society
- IEEE-SASB Coordinating Committees
- Sponsor Committee
- SASB/SCC14 - SCC14 - Quantities, Units and Letter Symbols Committee
- Working Group
-
P260.1 Revision - P260.1 Revision Working Group
Learn More - IEEE Program Manager
- Michael Kipness
Contact - Working Group Chair
- Randall Curey
P260.1
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.
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.
No Superseded Standards
No Inactive-Withdrawn Standards
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.
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.