Current stage: 20.99 Effective date: Sep 22, 2025
Next stage: CD Next stage date: Jan 30, 2026
Originator: IEC
Owner: TC 31
Type: Technical Specification
ICS: 29.260.20
PUBLISHED IEC TS 60079-32-1:2013 ED1
PUBLISHED IEC TS 60079-32-1:2013/AMD1:2017 ED1
IN_DEVELOPMENT IEC TS 60079-32-1 ED2 20.99 WD approved for registration as CD Sep 22, 2025