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3-06-2001 1 : 01 PM FROM SHERIFF CENTRAL SVCS 209 468 43 <br />rlccno <br />NTAINMENT <br />UT10N5 <br />Revised =23101 <br />Supercedes Q1/11102 <br />Field Test Method for Testing the Annular Space <br />Of an Installed CSI Fiberglass Double -Wail Tank <br />With Dry Annular Space <br />This test method is applicable for testing the dry. annular space of an installed <br />Containment Solutions (CSI) fiberglass underground storage tank- The tank may <br />contain any level of fuel or water and fuel or water may be added or removed at any <br />- �-� As irinq the annular space test. <br />'Oki <br />Test Procedure: <br />iacuum be pulled in the tank annular space and <br />int of time required to holt the vacuum and the <br />evel will vary based on the tank annular space <br />i an initial hold time with a maximum vacuum loss <br />:ds 2" Hg during the initial hold time, the vacuum is <br />maximum vacuum loss of 4r Hg. This longer test <br />w for changes in temperature or variables. <br />-ment: <br />rage of 0-30" Hg with increments of .5" Hg or smiler <br />ir-driven Venturi vacuum pump capable of pulling at <br />th a compressor to drive the venturi vacuum pump <br />1. Connect the vacuum gauge, valve, and vacuum pump to any annular space <br />fitting. The assembly should allow the vacuum level in the tank to be read <br />with the valve dosed. The valve should be between the vacuum pump and <br />the tank fitting. Be sure that the assembly is airtight. <br />2. Start the vacuum pump and open the valve. <br />3. When the vacuum level reaches 13" Hg to 15" Hcy, close the valve and stop <br />the vacuum pump. <br />j <br />i r <br />02123/01 <br />P. 2 <br />