PUBLISHED
IEC 60050-881:1983 ED1
PUBLISHED
IEC 60050-881:1983/AMD1:2014 ED1
PUBLISHED
IEC 60050-881:1983/AMD2:2019 ED1
PUBLISHED
IEC 60050-881:1983/AMD3:2020 ED1
IN_DEVELOPMENT
IEC 60050-881 ED2
20.99
WD approved for registration as CD
Jun 20, 2025