ASME PTC 25-2018

Scope:
(a) This Code provides instructions in Part II for flow capacity testing and in Part III for in-service and bench testing. Testing of reclosing and nonreclosing pressure relief devices is conducted under various inlet and outlet conditions using steam, gases, and liquids for which valid physical properties are known.
(b) The validity of tests shall be determined in accordance to the requirements of subsection 1-3.