2013LST EN 60255-26-2013 Measuring relays and protection equipment -- Part 26: Electromagnetic compatibility requirements (IEC 60255-26:2013)
2002LST EN 12117-2002 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships
LST EN 12117-2002 Plastics piping systems - Fittings, valves and ancillaries - Determination of gaseous flow rate/pressure drop relationships was changed to LST EN 60255-26-2013 Measuring relays and protection equipment -- Part 26: Electromagnetic compatibility requirements (IEC 60255-26:2013).