BS EN 60027-1:2006 gives information about general quantities, units and their letter symbols and mathematical symbols that are to be used in electrical technology. It also gives rules for writing and printing these symbols and for the use of additional marks (subscripts, superscripts, etc.) with symbols for quantities.
BS EN 60027-1 contains:
Amendments have been made to Section 1: Recommendations for printing symbols and numbers.
EN 60027-1:2006
EN 60027-1:2006/A2:2007
HD 60027-1:2004
IEC 60027-1:1992/AMD2:2005