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API 520-1-1993

M00023508

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API 520-1-1993 Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries: Part I - Sizing and Selection

standard by American Petroleum Institute, 03/01/1993

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Applies to the sizing and selection of pressure relief devices used in refineries and related industries for equipment that has a maximum allowable working pressure of 15 pounds per square inch gauge or greater. The pressure relief devices covered are intended to protect unfired pressure vessels and related equipment against overpressure from operating and fire contingencies. Includes basic definitions and information about the operational characteristics and applications of various pressure relief devices.