Current stage: 20.99 Effective date: Apr 3, 2026
Next stage: CD Next stage date: Mar 31, 2026
Originator: IEC
Owner: TC 59/SC 59L
Type: International Standard
ICS: 13.120 97.170
IN_DEVELOPMENT IEC 60704-2-22 ED1 20.99 WD approved for registration as CD Apr 3, 2026