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IEC 60534-4 3rd Edition, June 1, 2006
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Industrial-Process Control Valves - Part 4: Inspection and Routine Testing
Additional Comments: BILINGUAL
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This part of IEC 60534 specifies the requirements for the inspection and routine testing of control valves manufactured in conformity with the other parts of IEC 60534.

This standard is applicable to valves with pressure ratings not exceeding Class 2500. The requirements for actuators apply only to pneumatic actuators.

This standard does not apply to the types of control valves where radioactive service, fire safety testing, or other hazardous service conditions are encountered. If a standard for hazardous service conflicts with the requirements of this standard, the standard for hazardous service should take precedence.

NOTE This standard can be extended to higher pressure ratings by agreement between purchaser and manufacturer.