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C. Coating: Unless otherwise specified, the exterior of the pipe shall <br /> have a bituminous coating to a minimum dry film thickness of 1.0 <br /> mil. <br /> D. Lining Inspection: <br /> 1. All ductile iron pipe and fitting linings shall be checked for <br /> thickness using a magnetic film thickness gauge. The <br /> thickness testing shall be done using the method outlined <br /> SSPC-PA-2 film thickness rating. <br /> 2. The interior lining of all pipe and fittings shall be tested for <br /> pinholes with a nondestructive 2,500-volt test. <br /> 3. Each pipe joint and fitting shall be marked with the date of <br /> application of the lining system and with its numerical <br /> sequence of application on that date. <br /> E. Certification of Lining Inspection: The pipe or fitting manufacturer <br /> must supply a certificate attesting to the fact that the applicator <br /> met the requirements of this specification, and that the material <br /> used was as specified, and that the material was applied as <br /> required by the specification. <br /> F. Repair: Anywhere that the coating is removed purposely or <br /> accidentally, the area shall be cleaned of any rust, grease, and dirt <br /> and re-coated to a minimum dry film as specified for the individual <br /> piece. <br /> G. Encasement: If and when directed by IRCDUS's Engineer, a <br /> polyethylene encasement shall be provided around pipe, fittings, <br /> and valves. The material, installation, and workmanship shall <br /> conform to applicable sections of AVWVA Standard Specifications <br /> C105/A21.5-99, or latest revision. Installation methods A or B <br /> shall be employed using flat tube polyethylene. The Contractor <br /> shall make provisions to keep the polyethylene from direct <br /> exposure to sunlight prior to installation. Backfilling following <br /> installation shall be completed without delay to avoid exposure to <br /> sunlight. <br /> 6.06 BELL AND SPIGOT CONNECTIONS <br /> Joints in bell and spigot pipe shall be push-on, mechanical, or restrained <br /> joints in accordance with AWWA Standard Specifications C111/A21.11- <br /> 00, or latest revision. Pipe restraints shall also be in accordance with <br /> IRCDUS Standards or as directed by IRCDUS's Engineer. <br /> 6.07 FLANGED CONNECTIONS <br /> A. All flanged pipe barrels shall comply with the physical and <br /> chemical requirements as set forth in the Handbook of Ductile Iron <br /> V4W Pipe Research Association. Flanges shall be in accordance with <br /> 6 - 3 <br /> 1 4. <br />