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5.4 Vapor Coupler Integrity Assembly. Assemble OPW 633-A, 633-13, and <br /> 634-A adapters, or equivalent, as shown in Figure 3-2. If the test is to be <br /> conducted at the storage tank Phase I vapor coupler, this assembly shall <br /> be used prior to conducting the static leak test in order to verify the <br /> pressure integrity of the vapor poppet. The internal volume of this <br /> assembly shall not exceed 0.1 cubic feet. <br /> Figure 3-2 <br /> Vapor Coupler Integrity Assembly <br /> I <br /> I• <br /> QUICK CONNECT FITTING <br /> FOR REGULATED NITROGEN PRESSURE GAUGE <br /> p SUPPLY �\ \ <br /> PLUGrio 0 <br /> nxE <br /> I <br /> l <br /> p J <br /> COUPLER CAP / <br /> (TO BE TESTED) <br /> 0 <br /> BLEEDER VALVE AND <br /> QUICK CONNECT FITTING <br /> 5.5 Vapor Coupler Test Assembly. Use a compatible OPW 634-B cap, or <br /> equivalent, equipped with a center probe to open the poppet, a pressure <br /> measuring device to monitor the pressure decay, and a connection for the <br /> introduction of nitrogen into the system. See Figure 3-3 for example. <br /> 5.6 Stopwatch. Use a stopwatch accurate to within 0.2 seconds. <br /> 5.7 Flowmeter. Use a Dwyer flowmeter, Model RMC-104, or equivalent, to <br /> determine the required pressure setting of the delivery pressure gauge on <br /> the nitrogen supply pressure regulator. This pressure shall be set such <br /> that the nitrogen flowrate is between 1.0 and 5.0 CFM. <br /> 5.8 Combustible Gas Detector. A Bacharach Instrument Company, Model <br /> 0023-7356, or equivalent, may be used to verify the pressure integrity of <br /> system components during this test. <br /> G-70-164 Exhibit 3-3 <br />