Current stage: 20.99 Effective date: 13 qer 2025
Next stage: CD Next stage date: 31 tet 2025
Originator: IEC
Owner: TC 47
Type: International Standard
ICS: 31.080.99
IN_DEVELOPMENT IEC 63608-2 ED1 20.99 WD approved for registration as CD 13 qer 2025