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PERM 200 � 1 2 <br /> I'ecords or ( lie A`l'Ci r aadout Prepare a monitoring <br /> fluid .solution to Ladd to the interstitial space . Sw PIPING SECONDARY <br /> 4 . 3 .6 Steel Tanks . Liquid- filled thydrostatic ) CONTAINMENT INTEGRITY <br /> tests tin steel tanks require the same fluid as the TESTING <br /> monitoring fluid . Contact (lye manufacturer for <br /> ittstrtac( iotis . 5 . 1 General . Underground product piping is 10MJilable <br /> 493J Fiberglass Tanks . Determine tank size with single and double walls . Double- walled piping., pro <br /> and diameter and apply' the appropriate method . Fides containment for leaks f ern primary containment <br /> and must lie leak -free to prevent relea :.e of product info <br /> 4 . 3 .6 Test Equipment . Test equipment shall tite environnte. nt , <br /> I <br /> nclude : <br /> 5. 2 Purpose . This method is used to test the inteotity <br /> monitoring fluid ; of piping interstitial space(s ). <br /> stopwatch or other device <br /> 5. 3 Description of Test. ' I he interstitial space is <br /> capableof tneasttrittg as l - secannd increment , <br /> Sealed at the ends and is pressurized with all inert gas , <br /> • tape measure . 'rhe pressure, is monitored ftar I hour. If any pressure `drop <br /> 4 , .9 'Fest Procedure . occurs, the secondary containment tails the test. <br /> 1. Remove ataty sensor thatmaylac installed in the 5. 4 Test Conditions . The primary pipe, may contain <br /> tank interstitial space . fuel . aand dispensing activities may continue during the: <br /> test ti4^ it10ut atfectitag test restilts . <br /> . Deterninw and record the �routtclty°atter l�.VCL <br /> 5. 5 Preparation , Ifthe tnterstitiatl Space contains prod - <br /> 3 . Add test liquid to the tank interstitial :spaceum ensure then the: interstice is open to the aattttospltere <br /> bringing rite fluid level into the riser tstand aand perform ra precision test oil the primacy piping beft>n. <br /> pipe) to the appropriate level based on tate conductiti it test oda tho scc.�ondar4^ cc3ntainment i - in <br /> g p p gA <br /> manufacturer ' s written procedure , <br /> 4, Document the. starting level incl start time vt` Termination fittings must he sealed at all piping tcrttunaaw <br /> lite test . tions , and test. fittings ninst be accessible, to perform the, <br /> (est , <br /> . Start the ti me - nteasuretile tit device. <br /> Check with the piping manufacturer regarding testing <br /> 6 . Wart the appropriate nine according to the procedures and the proper pressure before testing. Test- <br /> anufaacturer ' s test procedure . <br /> 7 . Document the.: ending level and ending flare, of <br /> the test. <br /> g . Determine and record lite- groundwater level . <br /> i <br /> 9 .. Remove liquid added to the; tank interstitial <br /> space , and restore the liquid level in the tank <br /> interstitial to normal operating eonditlon . " <br /> 10. Reinstall the: sensor so than it is installed within <br /> manufacturer ' s specifications , <br /> I <br /> 4. 3 . 10 Pa / Fall Criteria Corupfare the datta to <br /> tile- ntannufaacturer 's pass/fall criteria an Appendix A <br /> r <br />[ to determine if the tank has passed the test , <br /> r <br /> FIGURE &I . Boots on piping transitions aracd through <br /> stli'r'tp sults rent st tie teat,- tight when piping secondary <br /> containment integrity testing is performed. <br /> pe orgI <br />