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IEVref:112-01-17ID:
Language:enStatus: Standard
Term: unit symbol
Synonym1: symbol of a unit
[Preferred]
Synonym2:
Synonym3:
Symbol:
Definition: character or combination of characters denoting a unit of measurement

NOTE 1 – Most unit symbols are one or more letters of the Latin or Greek alphabets and are always printed in roman (upright) type and in the same font as the main text. Products of powers of such symbols are used to form the symbols for compound units according to the laws of algebra. In values of quantities, there is a space between the numerical value and the unit symbol, including the degree Celsius (C) and the percent (%); exceptions are the units degree (), minute ('), and second (") for plane angles.

NOTE 2 – Internationally adopted unit symbols are given in the BIPM brochure The International System of Units, and in the various parts of ISO/IEC 80000, ISO 31 and IEC 60027. Examples:

Unit name Symbol
second s
microampere µA
ohm Ω
metre per second squared m/s2 or m·s−2
mole mol
pascal Pa



Publication date:2010-01
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Internal notes:2015-05-13: Table image replaced by html table. JGO
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