1.1 ,This specification establishes requirements for polyethylene of raised temperature (PE-RT) systems for non-potable water applications. System components include PE-RT SDR 9 tubing, manifolds, fittings, valves and other appurtenances, and mechanical and fusion joining. PE-RT tubing is pressure rated for water at 73 ,°,F (23 ,°,C) and 180 ,°,F (82 ,°,C), and optionally 140 ,°,F (60 ,°,C). Included are requirements for materials, workmanship, dimensions and tolerances, product tests, and markings. Fittings include mechanical insert fittings and fusion fittings.