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® Figure D2-1 <br /> Air Supply <br /> Perform the following in the order listed. Air supply Valve open valve Open Air Supply <br /> 1. Comply with the requirements of Section C. <br /> 2. Connect"Tank Test Manifold"to a tank fitting. O�? <br /> 3. Connect the pressure source to the <br /> "Tank Test Manifold." <br /> 4. Pressurize tank to 5 psig maximum JpSig; Jpsig 5psig <br /> (3 psig for 12'tanks). End Main End <br /> (see Figure D1-1) <br /> Figure D1-1 � <br /> Air Supply 6. Close valve on each compartment"Tank Test <br /> Manifold."Disconnect the air supply line. <br /> 7. Close valve to double-wall bulkheads. <br /> (see Figure D2-2). <br /> Figure D2-2 <br /> Valve Closed Valve Closed Valve Closed <br /> Valve Closed Valve Closed <br /> 5, <br /> 79 <br /> 5. Monitor the pressure readings for 30 minutes for <br /> any loss in pressure from the initial reading which S�lSlg }Sit <br /> may indicate a leak. End Main End <br /> 6. While under pressure, cover tank outer surface, <br /> including fittings and manway(s),with soap solution 8. Monitor the pressure for 30 minutes for any loss in <br /> and inspect. pressure from the initial reading on the"Tank Test <br /> 7. After completing air test, release pressure. Manifolds"which may indicate a leak. <br /> 8. Remove all gauges, valves, and hose assemblies. 9. Also monitor the"Annular Space Gauge and Valve" <br /> 9. Replace and tighten fitting plug(s). for any increases in pressure which may also <br /> indicate a leak. <br /> 10. Replace the plastic vent plugs in the open fittings. 10. With all compartments under pressure, cover tank <br /> outer surface, including fittings and manway(s),with <br /> soap solution and inspect. <br /> ® , ® 11. After completing air test, release pressure. <br /> 12. Remove all gauges, valves, and hose assemblies. <br /> ` 13. Replace and tighten fitting plug(s). <br /> Do not connect air supply directly to the bulkhead 14. Replace the plastic vent plug in the open fittings. <br /> monitor fitting or tank damage will result. <br /> • <br /> Perform the following in the order listed. <br /> 1. Comply with the requirements of Section C. Perform the following in the order listed. <br /> 2. Connect"Tank Test Manifolds"to each 1. Comply with the requirements of Section C. <br /> compartment. 2. Connect"Tank Test Manifolds"to each <br /> 3. Connect"Annular Space Guage and Valve"to compartment. <br /> double-wall bulkhead fittings with valve open. 3. Connect the pressure source to the <br /> 4. Connect the pressure source to the "Tank Test Manifold"on the main tank. <br /> "Tank Test Manifolds." 4. Pressurize the main tank to 5 psig maximum <br /> 5. Pressurize all compartments to 5 psig (3 prig for 12'tanks). <br /> (3 psig for 12'tanks). (see Figure D3-1) <br /> (see Figure D2-1) <br /> 7 <br />