Draft Document - Explosive atmospheres - Part 17: Electrical installations inspection and maintenance (IEC 31J/287/CD:2019); Text in German and English
Explosive atmospheres - Part 25: Intrinsically safe electrical systems (IEC 60079-25:2020 + COR1:2020 + COR2:2022); German version EN IEC 60079-25:2022 + AC:2022