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Detroit Dam. and Reservoir Minto Fish Collection Facility Rebuild <br /> (1) Clay pipelines: Test in accordance uith ASTM C 828. <br /> Allowable pressure drop shall be as given in ASTM C 828. Make <br /> calculations in accordance with the Appendix to ASTM C 828. <br /> (2) Concrete pipelines: Test in accordance with ASTM C 924. <br /> Allowable pressure drop shall be as given in ASTM C 924. Make <br /> calculations in accordance with the Appendix to ASTM C 924. <br /> (3) Ductile-iron pipelines: Test in accordance with the <br /> applicable requirements of ASTM C 924. AlLowable pressure drop <br /> shall be as given in ASTM C 924. Make calculations in accordance <br /> with the Appendix to ASTM C 924. <br /> (4) ABS composite plastic pipelines: Test in accordance with the <br /> applicable requirements of UBPPA UMI-B-6. Allowable pressure drop <br /> shall be as given in UBPPA UNI-B-6. Make calculations in <br /> accordance with the Appendix to UBPPA UNI-8-6. <br /> (5) PVC plastic pipelines: Test in accordance with UBPPA DNI-B-6. <br /> Allowable pressure drop shall be as given in UBPPA UNI-B-6. Make <br /> calculations in accordance with the Appendix to UBPPA UNI-B-6. <br /> 3.2.2.2 Deflection Testing <br /> Perform a deflection test on entire length of installed plastic pipeline on <br /> completion of work adjacent to and over the pipeline, including leakage <br /> tests, backfilling, placement of fill, grading, paving, concreting, and any <br /> other superimposed loads determined in accordance with ASTM D 2412. <br /> Deflection of pipe in the installed pipeline under external loads shall not <br /> exceed 4.5 percent of the average inside diameter of pipe. Determine <br /> whether the allowable deflection has been exceeded by use of a pull-through <br /> device or a deflection measuring device. <br /> a. Pull-through device: This device shall be a spherical, spheroidal, <br /> or elliptical ball, a cylinder, or circular sections fused to a common <br /> shaft. Circular sections shall be so spaced on the shaft that distance <br /> from external faces of front and back sections will equal or exceed <br /> diameter of the circular section. Pull-through device may also be of a <br /> design promulgated by the Uni-Bell Plastic Pipe Association, provided <br /> the device meets the applicable requirements specified in this <br /> paragraph, including those for diameter of the device, and that the <br /> mandrel has a minimum of 9 arms. Ball, cylinder, or circular sections <br /> shall conform to the following: <br /> (1) A diameter, or minor diameter as applicable, of 95 percent of <br /> the average inside diameter of the pipe; tolerance of plus 0.5 <br /> percent will be permitted. <br /> (2) Homogeneous material throughout, shall have a density greater <br /> than 1.0 as related to water at 39.2 degrees F, and shall have a <br /> surface Brinell hardness of not lees than 150. <br /> (3) Center bored and through-bolted with a 1/4-inch minimum <br /> diameter steel shaft having a yield strength of not less than <br /> 70,000 psi, with eyes or loops at each end for attaching pulling <br /> cables. <br /> (4) Each eye or loop shall be suitably backed with a flange or <br /> heavy washer such that a pull exerted on opposite end of shaft <br /> 33 30 00. 00 25-13 <br />