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�_ J <br />40 <br />40 <br />40 <br />a.. Tubing shall have it working pressure of 200 Psi at 73.40 F. <br />b. Tuhittg interior surfaces shall be glass smooth, and shall be free from <br />bumps and irregularities. Materials Must be completely homogeneous <br />and uniform in appearance. <br />C. Tubing dimensions and tolerances shall correspond with the values fasted <br />in ASTM D2737, with it standard outside dimension ratio (DR) of 9.. <br />d. Tufting shall be fully labeled with brand name and manufacturer, NSF <br />seal, size, type of plastic material, and ASTM designation with which <br />the tubing complies. <br />_ Joints <br />Joints for plastic tubing shall be of the compression type, utilizing a totally <br />confined grip seal and coupling nut, along with it split clamp locking device. <br />Stainless steel tube stiffener inserts shall be used at all plastic tubing joints. <br />C. Buried Identification Ta e <br />Detectable buried identification tape shall be installed for all pipe. <br />Tape shall be 2 inches minimum width, consisting of a minimum 5 tail overall <br />thickness with a solid aluminum foil core. Construction shall he 2 mil clear film, <br />reverse print laminated to aluminurn foil to 2 rail clear film, making tiie till <br />permanently printed. <br />Tape shall be furnished in manufacturers' standard roll length, niceting the <br />„American Public Works Association" (APWA) color code, arid shall be <br />imprinted continuously with the following word;:. unless otherwise approved: <br />"CAUTION BURIED WATER MAIN BELOW" <br />Detectable buried warning tape shall be equal to or better than "PRO -LINE" <br />underground utility marking tape as manufactured by Pro -Line Safety Products <br />Co., 1499 Atlantic Drive, Unit #1, West Chicago, 1L. <br />D. Detectable Buried Trace Wire <br />Trace wire shall be continuous #14 TFIHN, single conductor copper wire. PVC <br />color sheathing shall meet the color Mile of the "Americaui Public Works <br />Association" (APWA). <br />3. INSTALLATION <br />A. Inslallatinii of. Plastic Water Service Tubing <br />Tubing shall be installed in accordance with ASTM D2774 standards as modified <br />bV these specification: and the Contract Diawings. <br />Plastic tubing shall he installed with a minimunt cover of I$ inches. Tubing ,hall <br />be placed in trench bottoms that provide continuous support and are uniliurn and <br />free from rocks, stones and other debris. The initial bedding and backfill from <br />3 inches below the lulling w rt inches above the tubing shall he sand or other <br />:,, . <br />