API STD 520, PART 1:2020
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Sizing, Selection, and Installation of Pressure-relieving Devices, Part I - Sizing and Selection
15-06-2023
01-10-2020
This standard applies to the sizing and selection of pressure-relief devices (PRDs) used in refineries, chemical facilities, and related industries for equipment that has a maximum allowable working pressure (MAWP) of 15 psig (103 kPag) or greater.
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