Current stage: 10.98 New project rejected Aug 21, 1998
Originator: IEC
Owner: TC 1
Type: International Standard
PUBLISHED IEC 60050-531:1974 ED1
PUBLISHED IEC 60050-531:1974/AMD1:2017 ED1
PUBLISHED IEC 60050-531:1974/AMD2:2020 ED1
ABANDON IEC 60050-531 ED2 10.98 New project rejected Aug 21, 1998