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C! <br />u <br />1 PART 2 MATERIALS <br />NONE <br />1 <br />PART 3 EXECUTION <br />1 <br />3.01 PIPING SYSTEMS <br />1 A. Applicable pipes, fittings and valves shall be subject to an air pressure test. <br />1 B. Pressure piping shall be subject to a pressure test per ANSI B31.8. <br />1 C. When pressure testing, because of the high energy content of compressed <br />air, extreme caution should be used when working around the pipe being <br />tested. Adequate barricade and safety precautions must be used to protect <br />1 the people and property. <br />1 D. The piping network may be tested in sections or as an entire assembly at the <br />Contractor's option. When testing as sections, following testing, all dis- <br />connected pipes or joints shall be reconnected using proven joining <br />1 techniques, (e.g., flanged, screwed, etc.) and witnessed by the engineer. <br />1 E. Test Pressure <br />1. The LFG header test pressure shall be equal to the maximum rated <br />pressure of the weakest component in the pipe system or 10 PSIG, <br />1whichever is lower. <br />2. If other than 10 PSI is used for test pressure, the Contractor shall <br />submit substantiating documentation showing that the proposed <br />1 test pressure is proper. <br />C <br />C <br />r <br />F. The Contractor shall provide all temporary plugs, flanges or other sealing <br />devices needed for the air testing. <br />G. The system shall hold pressure for at least 4 hours with no loss in pressure <br />after temperature corrections are made. If the pressure decrease, all joints <br />shall be soap bubble tested to determine the source of the leak. Repairs <br />shall be made and the system retested. Pressure gauge shall be grade 1A <br />with 0.2 psi resolution. <br />North County LFG Collection System 2 <br />San Joaquin County Public Works <br />CONTROL OF MATERIAL <br />Section 01412 <br />