Current stage: 20.99 Effective date: 9 jan 2026
Next stage: CD Next stage date: 30 sht 2026
Originator: IEC
Owner: TC 65/SC 65C
Type: International Standard
ICS: 25.040.40 35.100.20 35.240.50
IN_DEVELOPMENT IEC 61158-2-100 ED1 20.99 WD approved for registration as CD 9 jan 2026