LST EN 60534-2-1-2011 Industrial-process control valves -- Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions (IEC 60534-2-1:2011)
2011LST EN 60534-2-1-2011 Industrial-process control valves -- Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions (IEC 60534-2-1:2011)