NF C23-579-35-2*NF EN 60079-35-2:2012 Explosive atmospheres - Part 35-2 : caplights for use in mines susceptible to firedamp - Performance and other safety-related matters
2012NF C23-579-35-2*NF EN 60079-35-2:2012 Explosive atmospheres - Part 35-2 : caplights for use in mines susceptible to firedamp - Performance and other safety-related matters