IEC 60534-4 Ed. 2.0 b:1999
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Industrial-process control valves – Part 4: Inspection and routine testing
Does not apply to the types of control valves where radioactive service, fire safety testing, or hazardous service conditions are encountered. Is applicable to valves with pressure ratings not exceeding PN 420 (Class 2500). Requirements for actuators apply only to pneumatic actuators.
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