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This protocol does not specify line or tank size based on the test conditions. It does not function <br />as a conventional leak detector, but rather as a system to prevent the loss of product to the <br />environment in as fail safe manner -'as possible. The protocol specifies that the interstitial space <br />for a tank must be less than or equal to 8 cubic meters (2114 gal). The interstitial space for a line <br />must be less than or equal to 20 cubic meters (2642 gal). There are no other size or design <br />characteristic requirements. <br />The sensor operating principle uses a series of pressure switches to control the pump and trigger and alarm <br />with pump shutdown. The approximate air or vapor leak rate which would produce an alarm is <br />specified as greater than. 85±15 liters per hour for all systems. Leaks larger than this should <br />produce an alarm. <br />Temperature Effects <br />This system was tested over a range of temperature conditions of -25 deg C to 70 deg C. The <br />'system (X) did or ( ) did not pass all of these tests. <br />Effects of a Catastrophic Laak <br />A catastrophic leak tivill cause an immediate shut down of the pump. (K) yes () no <br />limitatzons on the Rz5ult3 <br />The ecti—n amS above are only valid when. <br />T! -,e vacuLnSC UTOS iTiL�s mcliiialn fcj lc'ie of 3Z -±I 5 lilars Vier hour during monitoi ng. <br />T Tle 1`netnCC ilaS nCt Substantially c,l2rg d. <br />14 Thi vendor's irst-uctcns for using tfie methcd are followed. <br />If this method is affected by other sources of interference. List these interferences below and <br />give the ranges of conditions under which the evaluation was done_ -(Check None if not <br />applicable.) <br />(X) None known <br />Manifolded tanks require that the interstice of the tanks be manifolded to a common vacuum pump. <br />> Safety disclaimer: This test procedure only addresses the issue of the method's <br />ability to detect leaks. It does not test the equipment for safety hams. <br />DR,A = T C 0 P'l <br />