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2 .2 .4 . Brine Main Materials (Confd) Pipe Unless otherwise indicated, all ductile iron pipe shall be factory lined and coated. P pe sh 1 al be externally coated with a bituminous coating of either coal tar or asphalt base to a minimum dry film thickness of 1 .0 mil. Coating shall be neither brittle when cold nor sticky when exposed to the sun. Pressure pipe shall be lined with 40 mils dry film thickness (DFT) of Protecto 401 or ' approved equal . If and where directed by the Engineer, a polyethylene encasement shall be provided over pipe, fittings, and valves. The material, installation, and workmanship shall conform to applicable sections of ANSI Standard A21 .5 . Installation methods A or B shall be employed using flat tube polyethylene. The Contractor shall make provisions to keep the polyethylene from direct ' exposure to sunlight prior to installation; and backfilling following installation shall be completed without delay to avoid exposure to sunlight. Markin The ductile iron and PVC brine main pipe shall be marked with 2 " wide detection tape which ' shall be adhered to the top of pipe. The tape shall have the words "Brine Main" in 3/4" high letters appearing one or more times every twenty-four (24 ") inches. The Brine main shall have continuous # 10 THHN multi-strand conductor copper trace wire in accordance with Indian River County Utilities latest standards. The wire coating shall be white ' in color for Brine main. Warning tapes conforming to ASTM-B 117 and manufactured by Paul Potter, Wheaton, Illinois or approved equal, shall be installed 12"- 18" inches in depth above the top of and parallel with pipe in continuous lengths and wrapped around fittings, risers or valves. ' Polyvinyl Chloride Pine All polyvinyl chloride pipe shall be extruded from PVC meeting the requirements of Cell Classification 12454-A or 12454-13 as defined in ASTM D 1784, PVC compounds. PVC pipe shall be manufactured in compliance with AWWA Standard C-90045 , PVC pressure pipe. Pressure class shall be Class 150, DR 18 for pipe sizes 4"42" diameter. Municipal Water Pipe ' conforming to AWWA C900 as manufactured by J.M. Manufacture or approved equal . Brine polyvinyl chloride pressure pipe for pipe sizes 14"-36" diameter shall conform to the latest AWWA Standards C-905 . PVC brine main shall be white in color. PVC pipe less than 4 " diameter shall be Class 200, SDR 21 as manufactured by JM Manufacturing Company or approved equal . Joints for PVC pressure pipe shall be ball and ' spigot push-on rubber gasket type only. No solvent weld or threaded joints will be permitted. 8