DIN EN 60079-17:2008 Explosive atmospheres - Part 17: Electrical installations inspection and maintenance (IEC 60079-17:2007); German version EN 60079-17:2007
2014DIN EN 60079-17:2014 Explosive atmospheres - Part 17: Electrical installations inspection and maintenance (IEC 60079-17:2013); German version EN 60079-17:2014
2008DIN EN 60079-17:2008 Explosive atmospheres - Part 17: Electrical installations inspection and maintenance (IEC 60079-17:2007); German version EN 60079-17:2007