IEC TS 60079-40:2015 Explosive atmospheres - Part 40: Requirements for process sealing between flammable or combustible process fluids and electrical systems
IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
IEC 60079-2:2014 Explosive atmospheres - Part 2: Equipment protection by pressurized enclosure "p"
IEC TS 60079-40:2015 history
2015IEC TS 60079-40:2015 Explosive atmospheres - Part 40: Requirements for process sealing between flammable or combustible process fluids and electrical systems