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PLASTEEL UNDERGROUND TANK APPENDIX B INTERSTITIAL VACUUM TEST (IVT) 1.0 Introduction: This test method has been developed by down on the ELUTRONO jacketed tank may require PLASTEEL INC.to meet the E.P.A.Alternate(Non-Volumetric)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 gal/hr 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 5.4 ensure a vacuum has been established,the gauge must re 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 PLASTEEL@ tank warranty.This test is offered as a the gauge before proceeding with 5.6. Contact the stand alone leak tightness test method. factory if the vacuum cannot be established per this paragraph. 2.0 Aoolication: The IVT is applicable to the PLASTEEL@ 5.5 Complete sections II and 111 of the Certificate of ELUTRONO (jacketed) Double-wall tank and the PLASTEEL® Composit Tightness Test. Double-wall tank.For compartmented tanks,consult the factory for the test time. 5.6 Refer to the Test Time Table (Figure 6.0) to determine 3.0 Authority: The Jurisdiction Having Authority (JHA) will determine the correct minimum time period for a valid test. whether the double-wall UST must be subject to a leak tightness test before Begin timing the test after completing 5.4. Record the placing the UST in service. nominal tank capacity, primary tank product and required test hours in Part IV of the Certificate. 4.0 Pre-Delivery Procedure: 5.7 After the required test time has passed, observe the 4.1 Read and understand the PLASTEEL@ Tank Installation gauge reading and record the reading,date and time of instructions and Appendix B before attempting the interstitial day in Part IV of the Certificate. vacuum test. Contact the PLASTEEL@ tank manufacturer if you 5.8 Test Conclusions:The tank has passed the leak tightness have any questions. test when the final gauge reading has not decreased from 4.2 Consult the PLASTEEL@ tank manufacturer before the tank is the initial gauge reading of 10"Hg.If other observations shipped to ensure that the tank is delivered with the test gauge are made,consult the tank manufacturer. assembly. This assembly is an optional piece of equipment supplied by the tank manufacturer. Test Time Tables: The table in Figure 6.0 lists the 4.3 Prior to shipment from the factory, you may request that the minimum test period(in hours) to perform a valid IVT with a manufacturer deliver the tank with the vacuum established. dry (air only) primary tank. The IVT test may be performed with gasoline,diesel or water in the primary tank. Consult the 4.4 Upon delivery, the delivery document will indicate the correct PLASTEEL@ tank manufacturer for the specific test time for vacuum gauge reading. Call the factory if the gauge reading does these situations. meet the gauge reading specified on the delivery document. 4.5 To maintain the vacuum during the unloading and installation TEST TIME TABLE:DRY PRIMARY TANK phases, extreme care must be taken to ensure the IVT gauge assembly is not jarred, struck or moved in any manner. Call the CAPACITY JACKETED COMPOSIT factory for instructions if the vacuum has decreased. (GALS.) (HOURS) (HOURS) 5.0 Test Procedures: 500 4.0 4.5 5.1 If the vacuum was established at 1,000 4.0 5.5 delivery and has not decreased 2,000 4.0 8.0 QUICK �� during the unloading and 3,000 4.0 9.0 DISCONNECT BUTTERFLY g g (Optional) VALVE installation phases, you may / by-pass 5.2 and 5.3 4,000 a.o 9.5 / /// 5.2 Install the vacuum gauge test 5,000 4.0 10.5 assembly (see Fig. 5.0) in the 6,000 4.0 11.0 monitor access NPT coupling on 8,000 4.0 13.0 the tank top centerline. Ensure 10,000 4.0 14.5 r f that any additional monitor access couplings are properly 12,000 4.0 15.5 INTERSTITIAL sealed with threaded plugs. MONITOR 15,000 4.0 17.5 = FITTING 5.3 Connect the vacuum pump to 20,000 4.0 20.5 1 the test gauge assembly and draw down to 10" hg. Record 30,000 4.0 37.5 FIGURE 5.0: VACUUM GAUGE initial gauge reading, date, and 40,000 4.0 45.5 TEST ASSEMBLY(TYPICAL). time of day in Part IV of the CURACY:ASME(ANSI)GRADE B, Certificate. The initial pump 50,000 4.0 53.0 2%,0.30"Hg,with 1"Hg GRADUATIONS. FIGURE 6.0 INSTALL RZESZOW INDUSTRIA ACERO HALL TANK CO. JOOR MFG. K&T STEEL METAL PRODUCTS TANX INC. SHINWON INDUSTRY TANOUES GUMEX TECNOECO ARGENTINA Rzeszow,Poland Quito,Ecuador N.Little Rock,AR Escondido,CA Twin Falls,ID Suwanee,GA Claremont,NH Seoul,Korea Torreon,Mexico Buenos Aires,Argentlna (501)9453211 (760)745.0971 (208)733-2554 (770)945.8383 (603)543.1272 INDUSTRIAS CORREAGUA JAPAN STEEL WORKS Fax(501)9454477 Fax(760)746-9515 Fax(208)733-7239 Fax(770)932.5671 Fax(603)543.1270 TECNOECO CHILE TVG MEfALURGICA RIMA Panama,Panama Tokyo,Japan Santiago,Chile Tab,Hungary Guaira,Brazil APP.B.03.98