(a) Thermosetting fittings for plastic pipe must conform to ASTM D 2517, (incorporated by reference, see Sec. 192.7).
(b) Thermoplastic fittings for plastic pipe must conform to ASTM D2513-99 for plastic materials other than polyethylene or ASTM D2513-09a for polyethylene plastic materials. [Amdt. 192-114, 75 FR 48603, Aug. 11, 2010, as amended by Amdt. 192-119, 80 FR 181, Jan. 5, 2015]