IEC 60027-3:2002

Letter symbols to be used in electrical technology - Part 3: Logarithmic and related quantities, and their units

IEC 60027-1:1992/AMD1:1997

Amendment 1 - Letter symbols to be used in electrical technology - Part 1: General

IEC 60027-1:1992/COR1:1993

Corrigendum 1 - Letter symbols to be used in electrical technology - Part 1: General

IEC 60027-1:1992

Letters symbols to be used in electrical technology - Part 1: General