IEC 61514-2:2013

Industrial process control systems - Part 2: Methods of evaluating the performance of intelligent valve positioners with pneumatic outputs mounted on an actuator valve assembly

IEC 61518:2001

Mating dimensions between differential pressure (type) measuring instruments and flanged-on shut-off devices up to 413 BAR (41,3 MPa)

IEC 61514:2000

Industrial-process control systems - Methods of evaluating the performance of valve positioners with pneumatic outputs