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IRecorurrrended Practices fer the Testing and Verification of Spill,Overfill,took DeEertian and Secondary Containment k-quiprmnt at US f taeiliues mart' containment of secondarily comained spin buc.kels. WAffIiLIN ,: Use only an atr-uperelEed vacu- um source or a vacuum pump powered by 6.3.2 Descrlptlon of Test. Using a specially an expfosfon-proof motor. Vacuum pumps equipped test caves, a paiiial vaurium is applied to with olectric inotors that are net expto- thc spill bucket. The vacuum level is irtonitored for siorn-proof may Ignita flammatile vapor& a 1-minute period. If a poi#able air compressor is used, It sl'rauld be located at I$ast 20 feet away 6.3.3 Test Equipment. Test egtiiprnent strap from the venturl-eduator or outside any include: Claes I, Dlvlalari 1 area. ■ Vamuni lest apprtrattus (The Lost atpp iratw. may he availnhle from cite spill hucket manutbewrer, 6.3.4 Preparatlion. It mcludes an air pressure regulator, a vacuum souive, it vacuum gauge with a minimum 0-50 1.Rcmeve and pi-operly dispo,st of any liquid ,Intl inch water colunm range and a otutlrot valve,The, debris ocavm, mdirrient and trash) in the spill cointral valve is used to adjust the vacuum level.); huckot.Clean the spil I bucket and examine it for Tost cover (fhe cover is OQvipp"I with a test danioge, defects or'hupfopeely iirstallecl compo- fttting, ; aents. If there are loose components{a.g.,loose Isand clamps err bolls),tighten thusc 1lemR hci{ire Plumber's plug {appropr'late slze, If used), Performing tire: ifileglity test. if them am irenis Stopwalt<It Or citWr LiS7u:-rrTcasurt:rrlcril deviec that roust be repaired or repliaced (e.g., detedo- capable of measuring a I-second increment; raged gaskets/seals or drain valves), notify the uwrrurluptaatur to obtain apprr,val bur'om pru- • a*cttng material (The prpaqc of the gas- seeding with the needed repairs. ketilig material is to pre yl&- aril air-Sight sell 2.r between the test cover arid the spill btickel.), ?xarTilrlL rare III cap and adapter fitting Frig loose, missing or damaged p.^ata and make riac- essary repairs. Make sure that the seal on the fill a-sa"water Column cap it, present and in good condition. The. cap Va[awm VOCUUm aouge must lit utuuruly and bu leak-light on the riser. 6aua r. A leaking cap will result in a failed test. As an afte motive In o 0glrt rill cnii, uw a pltinibnr`s plug in Ebe Fill riser. Control ,The s ac n vavu, us ill bkct drain if mmcnl, must be ValVo p p look-tight to pass the test. If tho drain valve is not lack-light, it may be. re:T1`16VCd and pc.rrtirt- nently plugged- NOTE: Buforc pormanunLly glu xi.ug, cnsuru that local ivgtrlations allow the drain valve to Ter*9918F IPO lit` 101-111ao0llrl lllQ CCI, T�rrk 191se►Plpe 1 � � �� 4.Cl ran any comarninatinn I'lYim the top surface of ttic spill huukel w1kxe ilrc u(ive:r make*a srhl : . and line it with gusketing nialerial- 5.Place tl,c test nova on 01t,spill buckai, WTI- fimning that it mattes ai tight seal with the gass- koting material. FIGUI L 6-2. The cover mud make a tight seat wrtfl the B.Connect the Iirie frarn €lie, vricuum gout= to the spHl bucket to prevent leakage when the v&orjum A {'adapter an the naves: puixed dlrYlrig the test. 7.1 f the skill huckct is found to bavr:crack9, Inose parts or separation of the bucket arum ncc fill pei.or�