PUBLISHED
IEC 60050-601:1985 ED1
PUBLISHED
IEC 60050-601:1985/AMD1:1998 ED1
PUBLISHED
IEC 60050-601:1985/AMD2:2020 ED1
IN_DEVELOPMENT
IEC 60050-601/AMD3 ED1
50.20
Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Aug 28, 2026
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