GOST IEC 60079-29-2-2013 Explosive atmospheres. Part 29-2. Gas detectors. Selection, installation, use and maintenance of detectors for flammable gases and oxygen
2013GOST IEC 60079-29-2-2013 Explosive atmospheres. Part 29-2. Gas detectors. Selection, installation, use and maintenance of detectors for flammable gases and oxygen