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Rocovir rieainded Practices for the Testing and Vefification of Spill, overfill, teak ffetectiart and Seroradaty Coritaintuerat Equiprsaein at UST Fad rties <br /> sibility of" accidentally imposing as high v icuum <br /> [ flat could dtuatat e the. tar►h , '1 he use of the valve. <br /> is recommended because it limits the vacuum <br /> that can l applied to the interstitial street , f ; Tapir a Vocu m, Capacity, Du atiunr <br /> a.: Ty � Int€ Fag t gamins t ors <br /> vacuums glatuge with as raau �e of 0inches to 30MOW <br /> _ <br /> Inc lies E1itt, gritilmated in inc° ren) e pts of 0 . 5 Irldres EMt_,rrWass <br /> HO or less5 ' --- e , rrscsf <br /> g <br /> 20,000toggle valve and vacuum hose. ; 1 <br /> 20000+ 2 <br /> stopwatch or Cather tithe- tneat surenrenr device <br /> catpabla of naetastirirr �g a _set�ond it retnent ; <br /> 4 . 2 . 9 Pass/ Fall Criteria . If thea is no loss in <br /> pltutaber ' s plug", vaacuurtn level , no liquids arc draata n into the inter- <br /> 4 . . 1 Test rncedttre, stitial spaae c during the test duraation sho a in "I`Ale. <br /> 4t I , and the lank secondary c;ontatinrnegnt area has <br /> 1 . Install the plumber ' s plug in the interstitial no additional fluid thaart .ti the suir-t of tlie° to taw their <br /> riser( s ) Belo " any tees , the tank secondatryleant airtrncnt passes the test . <br /> . Connect the v teuunt ga ticTe . valve and the <br /> If there Is ally varettntrn lost during the test or liquids <br /> vaatstruttt pe ne:rartane device tet the fitting on file rtrc draaevsa utter alae# iaate r titiad slaaae a , thein the ttan <br /> phsnabcr ' s plum. 11re valve should bit betuvicen cc°criclttr}F eont {iintttc{ nt fails the test , <br /> the vacuum source inlet and the pressure <br /> garuge , The gauge should be between (lies valve, . Tank Secondary Containment Integrity Testing <br /> and the: fitting, sea it will read the interstitial •`ate;- — Liquid-Filled Test Method . <br /> until when the valve is closed . The automatic <br /> vacunril shntofi' valve is located at the inlet ail` 43 * 1 General . 'phis test method tests tile= inteL- <br /> tiro vacuunn- producing device and should he rite of the liquid- tilled Interstitial space . '17nere are a <br /> set at ,a rninintum of 10 pereettt and no snore. nuntbert ol, vat iables that alfec t this test , such as itnter- <br /> thaau ? inches I-10 :above the: test vaacuum , stitial space volume, temperature, water table: and <br /> prc.rduet level in the prttrtaty tank . Refer to Afrivndix <br /> . . nsus`e all rcrnstee tions care airtight , A for specific tncanufacturers ' test procedure . <br /> 4. Start the vacuunn - 9eneratirig device , and open <br /> the valve , 4 -x . 2 Purpose. This general methodis used to <br /> test the integrity of the liquid - tilled secondary con - <br /> 5 . <br /> Pull the voicumn to Its inches lig for fiberglass taamment of at LEST. <br /> j tanks and 6 inches Hg filar steel tanks , Close they <br /> j Val re . 4 . 3 .E Description of `'test. [� Iq aid is added to <br /> the interstitial space of the tank and the, level is <br /> E6 . Allow the ;ae„rsttm ata t4tl iii e tear as ruitaiiuurai hrout! ht up into lite interstitial al ri ort `I'lte liquid level <br /> rat' i minatrs tit the specified vaeutim level , if is monitored for at specified pericKI of time . If the <br /> as stable vacuum cannon be maiinntined , test liquid level is maintained , then the containment <br /> equipment shall be inspected for leakage . pissed system has d the test . <br /> Repv.at steps 4 and + lentil a stables Vacuum iia p y <br /> achieved , if a stable vacuum cannot be mann- 43 .4 Test Conditions . tithe pritnar,= contain - <br /> rallied, the tank secondary containment integ- nnettt tiaay contain any level ( if product . Determine <br /> rity tent fails, whether the.: �!, !`011n waai err depth is above the bottom <br /> dureS in ret2ards to ;rou I IAvatei aandaperl rmin re <br /> 7 . When the. vaacuuar level st<abihrts, record tlae <br /> vaacutun level and thc� test staart tine. � e <br /> test. No bulk deliveries shall occur within 8 hours <br /> 8 . Observe the vacuum level fcrr the period elf` prior to conducting or during tire test , No efisp las <br /> time shown in 'i able 4- 11 in ” IWIV cttacur durineo the duration of filet test . <br /> w l e.esard the final time and w aic° uttttr 1e vt 1 . 4 .3 . 5 Preparation . Determine the volume of` <br /> 10 . Check the interstitial space for accumulation c>l` the tank and Identify the: test being performed . <br /> ed _ <br /> liquids , Tank volume ittferrunaation is avail able from iacilite <br /> I peLor0 <br /> C <br /> i <br />