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• -10- <br /> 6.3 Verify that the O-ring in the V/L adaptor is present and in good condition. An <br /> 0-ring with nicks, tears, or other deformations shall be replaced prior to the <br /> test. The O-ring shall be properly lubricated (see Section 5.7) to ensure a <br /> vapor tight connection. <br /> 6.4 Conduct a pre-test leak check of the V/L adaptor, the gas volume <br /> meter and the adaptor supply hose by connecting the V/L adaptor <br /> to a surrogate spout as shown in Figure 5 and described in Section <br /> 5.11B. Raise the test pressure to 5.00" ± 0.50" WC. There shall not <br /> be a pressure drop of more than 1.00" WC from the above starting <br /> pressure for 30 seconds from the start of the test. If the leak test <br /> passes, proceed with the V/L testing. If the leak test fails, proceed to <br /> isolate the source of the leak by pressurizing the test equipment again. <br /> Squirt liquid leak detector solution on interfaces and other potential <br /> leak sources and watch for the formation of bubbles. Once leak(s) are <br /> repaired, repeat the leak test procedure. <br /> Note: Leak checks shall be conducted in a shaded area or away from <br /> direct sunlight. Leak checks may be conducted during V/L <br /> testing to ensure leak integrity of test equipment. <br /> 6.5 This test procedure shall be conducted with the storage tank <br /> pressure/vacuum (P/V) valve(s) installed and the Phase I vapor coupler(s) <br /> poppet(s) in the closed position with the adaptor dust cap(s) installed. <br /> 6.6 With the portable tank and V/L test equipment assembled, dispense gasoline <br /> into the portable test tank until at least 10% of the tanks total capacity has <br /> been reached. This will condition the portable tank with gasoline vapors. <br /> This conditioning shall be conducted each time the test tank is emptied prior <br /> to conducting testing at each facility. <br /> 6.7 All pressure measuring device(s) shall be bench calibrated using a reference <br /> gauge, incline manometer or NIST traceable standard at least once every six <br /> (6) months. Calibration shall be performed at 20, 50, and 80 percent of full <br /> scale. Accuracy shall be within five (5) percent at each of these calibration <br /> points. <br /> Healy Model 900 Nozzle V/L Test Procedure, Exhibit 5—Executive Orders VR-201-D and VR-202-D <br />