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Section 15060 <br /> PIPING SYSTEMS <br /> operation of any kind. No test shall commence until the pipeline is completely cleaned to the <br /> satisfaction of the Construction Manager. <br /> Testing shall be in accordance with this section and Section 01660, INSTALLATION, <br /> TESTING, AND COMMISSIONING. Pressures, media and test durations shall be as <br /> specified in the PIPESPEC. Equipment which may be damaged by the specified test <br /> conditions shall be isolated. Testing shall be performed using calibrated test gages and <br /> calibrated volumetric measuring equipment to determine leakage rates. Each test gage shall <br /> be selected so that the specified test pressure falls within the middle one-third of the gage's <br /> range.The Contractor shall notify the Construction Manager 48 hours prior to each test and <br /> shall include pipe test procedures and status in the testing log specified in Section 01660, <br /> uN'vTfi,LLATIr) TESTING, .A ND COI:�Il�ISSIOINTL�1G. All bulkheads thrust blocks, <br /> anchors, pumps, etc. shall be in place prior to issuance of the notice to the Construction <br /> Manager. Tests shall be witnessed by the Construction Manager. The Contractor shall <br /> furnish the Construction Manager with a written record of all tests. <br /> At the Contractor's option, pipe systems may be tested in segments between convenient <br /> isolation points such as valves, structures and equipment. However, in addition to such <br /> testing, a final pressure test of the complete pipe system shall be conducted. <br /> Unless otherwise specified, testing, as specified herein, shall include existing piping systems <br /> which connect with new pipe systems. Existing pipe shall be tested to the nearest existing <br /> valve. Any piping which fails the test shall be repaired by the Contractor at the Contractor's <br /> cost. Repair of existing piping will be considered and paid for as extra work. <br /> Additional procedures for testing potable water piping are specified in Paragraph 3.07, <br /> Cleaning, Testing, and Flushing of Potable Water Lines of this section. <br /> B. Air Systems <br /> The testing medium for air systems shall be air under pressure as specified. <br /> The allowable pressure drop shall be no greater than 5 percent of the specified test pressure <br /> for the duration of the period. Prior to starting a test interval using air, the air shall be at <br /> ambient temperature and specified test pressure. <br /> C. Liquid Systems <br /> The testing medium for liquid systems shall be clean water. Leakage shall be zero at the <br /> specified test pressure throughout the specified duration for the following systems: exposed <br /> piping,buried pressure or insulated piping, through all valves when in the closed position, <br /> and buried or exposed piping carrying liquid chemicals. Unless otherwise specified, leakage <br /> from other buried liquid piping systems shall be less than 0.05 gallon per hour per inch <br /> diameter per 1,000 feet of buried piping. <br /> Walnut Grove Sewer Project(Conformed) 15060-8 SA0160401 <br /> March 2008 nAsa0160401\specs\wg conform\div 15\15060.doc <br />