IEC 60079-20-1:2010/COR1:2012 Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data; Corrigendum 1
2012IEC 60079-20-1:2010/COR1:2012 Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data; Corrigendum 1
2010IEC 60079-20-1:2010 Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data