Revised
IEC 60249-1:1968 ED1
Replaced
IEC 60249-1:1982 ED2
IEC 60249-1:1982/AMD4:1993 ED2
IEC 60249-1:1982/AMD3:1991 ED2
IEC 60249-1:1982/AMD1:1984 ED2
IEC 60249-1:1982/AMD2:1989 ED2
IEC 61189-2:1997 ED1
IEC 61189-2:1997/COR1:1997