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E <br />Re:ommended Practices for tne Testing and Verlication of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities <br />n 6 <br />5.3.6 Pass/Fall Criteria. If no pressure change <br />r7i occurs during the test period, the piping system <br />passes the secondary containment integrity test. If - <br />there is any drop in pressure over the test period, • <br />the piping fails the secondary containment integrity <br />test. If there is any increase in pressure over the test <br />period, repeat the test. s <br />i <br />pei.org