Explosion prevention and protection in underground mines - Protective systems - Part 2: Passive water trough barriers; German version EN 14591-2:2007— 50 стр.
Explosion prevention and protection in underground mines - Protective systems - Part 2: Passive water trough barriers; German version EN 14591-2:2007— 50 стр.
Explosive atmospheres - Explosion prevention and protection - Part 2: Basic concepts and methodology for mining; German version EN 1127-2:2002— 36 стр.
