A. The following is a list of standards that may be referenced in thissection: 1. American Association of State Highway and Transportation Officials (AASHTO): T99, Standard Method of Test for the Moisture Density Relations of Soils Using a 2.5-kg (5,5-lb) Rammer and a 305-mm (12-in.) Drop. 2. American Society of Mechanical Engineers (ASME): a. B16.21, Nonmetallic Flat Gaskets for Pipe Flanges. b. B16.42, Ductile Iron Pipe Flanges and Flanged Fittings Classes 150 and300 3. American Water Works Association (AWWA): a. C104/A21.4, Cement-Mortar Lining for Ductile Iron Pipe and Fittings. b. C105/A21.5, Polyethylene Encasement for Ductile Iron Pipe Systems. c. C110/A21.10, Ductile Iron Pipe and Gray-Iron Fittings. d. C111/A21.11, Rubber-Gasket Joints for Ductile-Iron Pipe and Fittings. e. C115/A21.15, Flanged Ductile-Iron Pipe or Gray-Iron Fittings f. C116/A21.16, Protection Fusion-Bonded Epoxy Coatings for the Interior and Exterior Surfaces of Ductile-Iron and Gray-Iron Fittingsfor Water Service Supply Service. g. C150/A21.50, Thickness Design of Ductile-Iron Pipe. h. C151/A21.53, Ductile-Iron Pipe, Centrifugally Cast, for Water i. C153/A21.53, Ductile-Iron Compact Fittings for Water Service. j. C600, Installation of Ductile-Iron Water Mains and Their Appurtenances. k. C606, Grooved and Shoulder Joints. 4. ASTM International (ASTM) a. A307, Standard Specifications for Carbon Steel Bolts and Studs, 60,000 psi Tensile Strength. b. A563, Standard Specification for Carbon and Alloy SteelNuts.
