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r PL ASTEeLa0 U .0 RGROUND TANK APPENDIX B INTERSTITIAL VACUUM TEST (IVT) 1.0 Introduction: This test method has been developed by down on the ELUTRONS jacketed tank may require PLASTEEL INC.to meet the E.P.A.Alternate(Non-Volumerric)Tank Tightness reiteration due to the slow nature of air movement in the test procedures. The IVT has been verified by a third party to be capable of interstitial space. detecting a 0.1 gaVhr leak rate with a probability of detection of 100%when all of the testing criteria are met.The false alarm rate for a tight tank is less than ]•4 To ensure a vacuum has been established,the gauge must 5%.It is impossible to maintain a steady vacuum if a leak is present.This test is read 10"hg. for three(3)hours without any decrease on not necessary to attain the PL4,STEELS tank warmnty.This test is offered as a the gauge before proceeding with 5.6. Contact the stand alone leak tightness[est method. factory if the vacuum cannot be established per this paragraph. 2.0 Ayolieation: The IVT is applicable to the PLASTEELS 5.5 Complete sections 11 and III of the Certificate of ELUTRONS Qacketed) Double-wall tank and the PLASTEELS Composit Tighmess Test. Double-wall tank. For compartmented tanks, consult the factory for the test 5.6 Refer to the Test Time Table (Figure 6.0) to determine time. the correct minimum time period for a valid test. 3.0 Authority: The Jurisdiction Having Authority (JHA) will determine Begin timing the test after completing 5.4. Record the whether the double-wall UST must be subject to a leak tightness rest before nominal tank capacity, primary tank product and placing the UST in service. required[est hours in Part IV of in-Certificate. .4.0 Are-Clellvery Procedure: 5.7 After the required test time has passed, observe the gauge reading and record the reading, dace and time of 4.1 Read and understand the PLASTEELS Tank Installation day in Part IV of the Certificate. instructions and Appendix B before attempting the interstitial vacuum test. Contact the PLASTEELS tank manufacturer it you 5.3 Test Conclusions:The tank has passed the leak tightness have any questions. test when the final gauge reading has not decreased from the initial gauge reading of 10"Hg. If other observations -t.? Consul[ the PLASTEELS tank manufacturer before the tank is are made,consult the rank manufacturer. shipped to ensure that the tank is delivered with the test gauge L assembly. This assembly is an optional piece of equipment Test Time Tables: The table in Figure 6.0 lists the supplied by the tank manufacturer. minimum test period (in hours) to perform a valid IVT with a 4.3 Prior to shipment from the factory. you may request that the dry (air only) primary tack. The IVT test may be performed manufacturer deliver the tank with the vacuum established. with gasoline, diesel or water in the primary tank.Consult the PLASTEELS tank manufacturer for the specific test time for 4.4 Upon delivery. the delivery document will indicate the correct these situations. vacuum gauge reading. Call the factory if the gauge rending does meet the gauge reading specified on the delivery document. 45 To maintain the vacuum during the unloading and installation TEST TIME TABLE:DRY PRIMARY TANK phases, extreme :at, must be taken to ensure the IVT gauge CAPACITY JACKETED COMPOSIT assembly is not jarred. struck or moved in any manner. Call, the (GALS.) (HOURS) (HOURS) factory for instructions if the vacuum has decreased. 500 4.0 4.5 5.0 Test Procedures[ 71000 4.0 5.5 QUICK 5.1 If the vacuum was established at 2.000 4.0 6.0 01SCONNECT BUTTERFLY delivery and has not decreased 3:700 4.0 9.0 {C^„t'onait VALVE durng the unloading and 4,:Co l.a es installation phases. you may I I y f b;%-?ass 5..and 5.3 5.700 eta 'a5 �} lnsal [hz cac0nm gauge test 9._ea 4.7 tta ]i5tt'Ci-; '>dd Fig. 5A. in rhd 3.SCC 1 13:7 .^.xm[a,ac,:zss `PT zoo?!ing 0r, e.c le s the tank ore cznrzrline. Ensure :hat am-` 1' ,wma! rnCni:ar t2.:C0 +.: 10.5 I?I-_?S7� : axes: ..71;n'.'i and cr-er:y t S;CCC 4.7 17.5 I -+ !_1C?IIT''; ;waled tvun thczadad ?logit I -.. ING 20.-'CC 4.3 vacuum ?Limp :a las the :_ .dacz• asiernM% and 3C_ct s7 3'S =G'.=._;., ,._:,:.:;yt 3A6GE cra-., ,!�,n :o IO" cg. Rzccr_' IC,-Co d. 45.5 _i-Ass=_r.I=__• --•='CA7.. ':c.^.! _]u_e :--ading. cats. at..-' _ =UZA:'. >SMS 'ANSIt 30A71E S. t:-_ dlv to Par: IV o ^e I J.7 53.7 i =2',,. :-]C'H.,.Wi!11•4; 3RA7UA7:Cr;S. Cz.....0atz. T;:_ ......al =7.? FIGURE 6.0