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R IVED <br /> EC E� i <br /> Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilit <br /> ,, <br /> too *' Oookto <br /> -' ' -"m fill "ncl " " "he the spill bucket. The vacuum level is monitored i <br /> � NOTE: If the >;ill cap. is not included in the <br /> spill bucket test and/or the cap is not tight, it a 1 -minute Period. L <br /> could be the source of potential fuel contami- ` ` " � i I �w e 1 / Ll i� <br /> nation from water intrusion. 6.3.3 Teat Eq�{ipnt pt NJ*JJ Oquipment sh <br /> . _ . . ... . . . .. . .. ... . _. .. .. . . . .. .. . . . . includes <br /> ° vacuum test apparatus (The test apparatus rx <br /> NOTE: Before permanently plugging, ensure be available from the spill bucket manufactui <br /> that local regulations allow the drain valve to It includes an air pressure regulator, a vacuw <br /> be permanently plugged. w source, a vacuum gauge with a minimum 09 <br /> inch water column range and a control val <br /> 6.2. 5' Test Procedure . The control valve is used to adjust the vacu. <br /> Is Add water to the spill bucket to a level within level:); <br /> 1 .5 inches of the top of the spill bucket, Allow ° test cover ('The cover is UIPd with a test <br /> the water to settle for 5 minutes before the initial pPe <br /> ting.); <br /> water level measurement is takes. ° plumber 's plug (appropriate 'size, if used) ; <br /> 2. Place the measuring stick vertically at the lowest <br /> point in the spill bucket and extending above the ° stopwatch or other time-measurement dev <br /> water level to allow for an accurate meastue- capable of measuring a 1 -second increment; <br /> Ment to be taken. The location of the measuring ° gasketing material (The purpose of the g <br /> stick must remain the same for each water level keting material is to provide an air-tight <br /> measurement. Document the initial water level between the test cover and the spill bucket.)s <br /> measurement as measured from the bottom of <br /> the spill bucket. Alternative measurement meth- o • so° water column <br /> • i ods may be used provided that measurement to vacuum vacuum Gauge <br /> 1/16 (0.063) inch can be made. Source ' <br /> 3. Take all precautions to prevent the water level <br /> from being disturbed during the duration of the control <br /> test. valve <br /> 4. After 1 hour, document the ending water level <br /> measurement. <br /> 5. Upon completion of the test, remove and dis- " <br /> pose of the water according to Section 6.7, and <br /> dry the inside of the spill bucket before returning Plumber's Piut <br /> it to service. Tank Riser Pll <br /> 6.2.6 Paso/Fall Criteria . If the water level has <br /> dropped less than 1/8 (0. 125) inch, the spill bucket <br /> passes the integrity tests <br /> If the water level has dropped 1/8 (0. 125) inch or <br /> greater, the spill bucket fails the integrity test. <br /> 6. Spill Bucket Integrity Testing a— Vacuum Test :FIGURE 66.2. The cover must make a tight seal with t <br /> M#thod . spill bucket to prevent leakage when the vacuum Is <br /> 6.3.1 Purpose, This method is used to test the pulled during the test. <br /> ` integrity of single-walled spill buckets or the pri- , . . _ . . ... W . - .Sao ~, 411010090 . . _ ._ ED <br /> Mary containment of secondarily contained spill buckets, "WrIMONIAa Use only an ale operated vas- <br /> uum source or a vacuum pump pow* <br /> I 6.3.2 Description of Test. Using a specially Bred by an exploston•proof motor. Vacuum <br /> i equipped test cover, a partial vacuum is applied to pumps with electric motors that are not <br /> pel.org <br />