2012LST EN 60079-11-2012 Explosive atmospheres -- Part 11: Equipment protection by intrinsic safety "i" (IEC 60079-11:2011)
2008LST EN 60079-27-2008 Explosive atmospheres - Part 27: Fieldbus intrinsically safe concept (FISCO) (IEC 60079-27:2008)
0000 LST EN 60079-27-2006
LST EN 60079-27-2008 Explosive atmospheres - Part 27: Fieldbus intrinsically safe concept (FISCO) (IEC 60079-27:2008) was changed to LST EN 60079-11-2012 Explosive atmospheres -- Part 11: Equipment protection by intrinsic safety "i" (IEC 60079-11:2011).