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LO Introduction: This test method has been developed by
<br />PLASTEEL INC. to meet the E.P.A. Alternate (Non -Volumetric) Tank Tightness
<br />test procedures. The IVT has been verified by a third party to be capable of
<br />detecting a 0.1 gal/hr leak rate with a probability of detection of I ODYb when all
<br />of the testing criteria are met. The false alarm rate for a tight tank is less than
<br />5%. It is impossible to maintain a steady vacuum if a leak is present. This test is
<br />not necessary to attain the PLASTEELr tank warranty. This test is offered as a
<br />stand alone leak ti,,htness test method.
<br />2.0 Application: The IVT is applicable to the PLASTEEL®
<br />ELUTRON® (jacketed) Double-wall tank and the PLASTEEL a Composit
<br />Double-wall tank. For compartmented tanks, consult the factory for the test
<br />time.
<br />3.0 Authority The Jurisdiction Having Authority (JHA) will determine
<br />whether the double-wall UST must be subject to a leak tightness test before
<br />placing the UST in service.
<br />.4.0 Pre -Delivery Procedure:
<br />4.1 Read and understand the PLASTEELO Tank Installation
<br />instructions and Appendix B before attempting the interstitial
<br />vacuum test. Contact the PLASTEEL 0 tank manufacturer if you
<br />have any questions.
<br />4.2 Consult the PLASTEEL I< tank manufacturer before the tank is
<br />shipped to ensure that the tank is delivered with the test gauge
<br />assembly. This assembly is an optional piece of equipment
<br />supplied by the tank manufacturer.
<br />4.3 Prior to shipment from the factory, you may request that the
<br />manufacturer deliver the tank with the vacuum established.
<br />4.4 Upon delivery, the delivery document will indicate the correct
<br />vacuum gauge reading. Call the factory if the gauge reading does
<br />meet the gauge reading specified on the delivery document.
<br />4.5 To maintain the vacuum during the unloading and installation
<br />phases, extreme care must be taken to ensure the IVT gauge
<br />assembly is not jarred, struck or moved in any manner. Call the
<br />factory for instructions if the vacuum has decreased.
<br />5.0 Test Procedures:
<br />QUICK _� p
<br />DISCONNECT BUTTERFLY
<br />(Optional) VALVE
<br />5.1 If the vacuum was established at
<br />delivery and has not decreased
<br />during the unloading and
<br />installation phases, you may
<br />by-pass 5.2 and 5.3
<br />5.2 Install the vacuum gauge test
<br />assembly (see Fig. 5.0) in the
<br />monitor access NPT coupling on
<br />the tank top centerline. Ensure
<br />that any additional monitor
<br />INTERSTITIAL access couplings are properly
<br />MONITOR sealed with threaded plugs.
<br />FITTING
<br />FIGURE 5.0: VACUUM GAUGE
<br />TEST ASSEMBLY (TYPICAL).
<br />CCURACY: ASME (ANSI) GRADE B,
<br />± 2%, 030"Hg, with 1 "Hg GRADUATIONS.
<br />5.3 Connect the vacuum pump to
<br />the test gauge assembly and
<br />draw down to 10" hg. Record
<br />initial gauge reading, date, and
<br />time of day in Part IV of the
<br />Certificate. The initial pump
<br />down on the ELUTRON a jacketed tank may require
<br />reiteration due to the slow nature of air movement in the
<br />interstitial space.
<br />5.4 To ensure a vacuum has been established, the gauge must
<br />read 10" hg. for three (3) hours without any decrease on
<br />the gauge before proceeding with 5.6. Contact the
<br />factory if the vacuum cannot be established per this
<br />paragraph.
<br />5.5 Complete sections 11 and III of the Certificate of
<br />Tightness Test.
<br />5.6 Refer to the Test Time Table (Figure 6.0) to determine
<br />the correct minimum time period for a valid test.
<br />Begin timing the test after completing 5.4. Record the
<br />nominal tank capacity, primary tank product and
<br />required test hours in Part IV of the Certificate.
<br />5.7 After the required test time has passed, observe the
<br />gauge readin, and record the readin-, date and time of
<br />day in Part IV of the Certificate.
<br />5.8 Test Conclusions: The tank has passed the leak tightness
<br />test when the final gauge reading has not decreased from
<br />the initial gauge reading of 10" Hg. If other observations
<br />are made, consult the tank manufacturer.
<br />Test Time Tables: The table in Figure 6.0 lists the
<br />minimum test period (in hours) to perform a valid IVT with a
<br />dry (air only) primary tank. The IVT test may be performed
<br />with gasoline, diesel or water in the primary tank. Consult the
<br />PLASTEEL a tank manufacturer for the specific test time for
<br />these situations.
<br />FIGURE 6.0
<br />INDUSTRIA JAPAN JEEWON METAL TANQUES ZORN
<br />HERKULES TVG ACERO STEEL WORKS INDUSTRIAL CO. LTD. JOOR MFG. K & T STEEL PRODUCTS GUMEX TANX INC. INDUSTRIES
<br />Tab, Hungary Quito, Ecuador Tokyo, Japan Seoul, Korea Escondido, CA Twin Falls, ID Suwanee, GA Torreon, Mexico Claremont, NH Elkhart, IN
<br />36.84.320.211 593-2-503-600 81.3.3501-6138 82-2-585.0821 (619) 745.0971 (208)733.2554 (404) 945.8383 52-17-50-6110 (603)543-1272 (219)266.1433
<br />Fax 36-84-320-624 Fax 593-2-503-633 Fax 81-3-35954626 Fax 82.2.585-0820 Fax (619) 746-9515 Fax (208) 733.7239 Fax (404) 932-5671 Fax 52-17-50-6063 Fax (603) 543.1270 Fax (219) 266.1012
<br />APP. B, 11-95
<br />TEST TIME TABLE: DRY PRIMARY TANK
<br />CAPACITY
<br />(GALS.)
<br />JACKETED
<br />(HOURS)
<br />COMPOSIT
<br />(HOURS)
<br />500
<br />4.0
<br />4.5
<br />1,000
<br />4.0
<br />5.5
<br />2,000
<br />4.0
<br />8.0
<br />3,000
<br />4.0
<br />9.0
<br />4,000
<br />4.0
<br />9.5
<br />5,000
<br />4.0
<br />10.5
<br />6,000
<br />4.0
<br />11.0
<br />8,000
<br />4.0
<br />13.0
<br />10,000
<br />4.0
<br />14.5
<br />12,000
<br />4.0
<br />15.5
<br />15,000
<br />4.0
<br />17.5
<br />20,000
<br />4.0
<br />20.5
<br />30,000
<br />4.0
<br />37.5
<br />40,000
<br />4.0
<br />45.5
<br />50.000
<br />4.0
<br />53.0
<br />FIGURE 6.0
<br />INDUSTRIA JAPAN JEEWON METAL TANQUES ZORN
<br />HERKULES TVG ACERO STEEL WORKS INDUSTRIAL CO. LTD. JOOR MFG. K & T STEEL PRODUCTS GUMEX TANX INC. INDUSTRIES
<br />Tab, Hungary Quito, Ecuador Tokyo, Japan Seoul, Korea Escondido, CA Twin Falls, ID Suwanee, GA Torreon, Mexico Claremont, NH Elkhart, IN
<br />36.84.320.211 593-2-503-600 81.3.3501-6138 82-2-585.0821 (619) 745.0971 (208)733.2554 (404) 945.8383 52-17-50-6110 (603)543-1272 (219)266.1433
<br />Fax 36-84-320-624 Fax 593-2-503-633 Fax 81-3-35954626 Fax 82.2.585-0820 Fax (619) 746-9515 Fax (208) 733.7239 Fax (404) 932-5671 Fax 52-17-50-6063 Fax (603) 543.1270 Fax (219) 266.1012
<br />APP. B, 11-95
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