Relief System Design and Design Basis is documenting how the loads and sizes of the pressure relief system, as well as inlet and outlet sizes, were determined. This includes a description of overpressure scenarios considered, the scenario that creates the largest load to be relieved, the assumptions used, and if the device meets a certain code.
Reference: Lees’ Loss Prevention in the Process Industries: Hazard Identification, Assessment and Control (3 Volumes), 4th Edition. By Sam Mannan.
Management/Process Safety Information and Knowledge/Instrumentation