DIN EN 13463-2:2005 Non-electrical equipment for use in potentially explosive atmospheres - Part 2: Protection by flow restricting enclosure 'fr'; German version EN 13463-2:2004
2005DIN EN 13463-2:2005 Non-electrical equipment for use in potentially explosive atmospheres - Part 2: Protection by flow restricting enclosure 'fr'; German version EN 13463-2:2004