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pei.org 49 Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities APPENDIX C-9 MECHANICAL AND ELECTRONIC LINE LEAK DETECTORS PERFORMANCE TEST )DFLOLW\1DPH2ZQHU $GGUHVV$GGUHVV &LW\6WDWH=LS&RGH&LW\6WDWH=LS&RGH )DFLOLW\,'3KRQH 7HVWLQJ&RPSDQ\3KRQH'DWH 7KLVGDWDVKHHWFDQEHXVHGWRWHVWPHFKDQLFDOOLQHOHDNGHWHFWRUV0//'DQGHOHFWURQLFOLQHOHDNGHWHFWRUV(//'ZLWKVXEPHUVLEOH WXUELQHSXPS673V\VWHPV6HH3(,536HFWLRQVDQGIRUWHVWSURFHGXUHV /LQH1XPEHU 3URGXFW6WRUHG /HDN'HWHFWRU0DQXIDFWXUHU /HDN'HWHFWRU0RGHO 7\SHRI/HDN'HWHFWRU 0//' (//' 0//' (//' 0//' (//' 0//' (//' 0//' (//' 0//' (//' MLLD (ALL PRESSURE MEASUREMENTS ARE MADE IN PSIG) 673)XOO2SHUDWLQJ3UHVVXUH &KHFN9DOYH+ROGLQJ3UHVVXUH /LQH5HVLOLHQF\POOLQHEOHHGEDFNYRO XPHDVPHDVXUHGIURPFKHFNYDOYHKROG LQJSUHVVXUHWR]HURSVLJ 6WHS7KURXJK7LPHLQ6HFRQGVWLPHWKH 0//'KHVLWDWHVDWPHWHULQJSUHVVXUH EHIRUHJRLQJWRIXOORSHUDWLQJSUHVVXUH DVPHDVXUHGIURPSVLJZLWKQROHDN LQGXFHGRQWKHOLQH 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