FAQs
IEC 60050-841:1983 [Revised]
IEC 60050-841:2004 [Current]
IEC 60050-841:2004/AMD1:2021 [Current]
IEC 60239:1967 [Revised]
IEC 60239:1987 [Revised]
IEC 60239:1997 [Revised]
IEC 60239:2005 [Current]
IEC 60240-1:1992 [Current]
IEC 60396:1972 [Revised]
IEC 60396:1991 [Current]