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IEC
IEC 60730-2-11:2025 EXV
En Vigor
2025-08-07
Automatic electrical controls - Part 2-11: Particular requirements for
energy regulators
IEC
IEC 61514:2000
En Vigor
2000-04-28
Industrial-process control systems - Methods of evaluating the
performance of valve positioners with pneumatic outputs
ISO
ISO/IEC 9834-4:1991
En Vigor
1991-12-19
Information technology — Open Systems Interconnection — Procedures for
the operation of OSI Registration Authorities — Part 4: Register of VTE Profiles
IEC
IEC 60152:2021
En Vigor
2021-07-09
Designation of phase differences by hour numbers in three-phase AC systems
