6.5.2.2 Testing the pressure relief device
Connect the test piece to the WD with the flow control valve fully closed. The pressure regulation system shall be disabled. Initiate the leak test. Record the pressure at which the pressure relief system operates (Pa). Continue operating until the pressure reading from the transducer is steady and record the pressure (Pb). Verify that Pa and Pb do not exceed the maximum pressure specified by the WD manufacturer [(see Clause 8 c)].