ANSI/ASME PTC 25-2008
Pressure Relief Devices
American Society of Mechanical Engineers / 13-Jan-2009 / 86 pages
The object of the test is to determine the performance of pressure relief devices. These tests determine one or more of the following:
(a) dimensional, operational, and mechanical characteristics
(b) relieving pressure
(c) relieving flow capacity at test pressure
(d) individual flow resistance
Procedures for conducting the tests, calculating the results, and making corrections are defined.
(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.