IEC-27-1 › Complete Document History
Letter symbols to be used in electrical technology - Part 1: General (Corrected and reprinted 1995-03-31)

Complete Current Edition:
   6TH EDITION - Letters symbols to be used in electrical technology - Part 1 - Dec. 1, 1992
   6TH EDITION CORRIGENDUM 1 - CORRIGENDUM 1 FOR 6TH EDITION - April 1, 1993
   FOR 6TH EDITION AMENDMENT 1 - IEC-60027-1-1 - June 6, 1997
   FOR 6TH EDITION AMENDMENT 2 - IEC-60027-1-2 - Jan. 1, 2005

Obsolete Revision Information:
   5TH EDITION - Letters symbols to be used in electrical technology - Part 1 - Jan. 1, 1971