API RP 520
Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries: Part I - Sizing and Selection
standard by American Petroleum Institute, 01/01/2000
Full Description
This recommended practice 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 psig [103 kPag] or greater. The pressure relief devices covered in this recommended practice are intended to protect unfired pressure vessels and related equipment against overpressure from operating and fire contingencies.