(1)
Cast-iron water pipes shall conform to ANSI/AWWA C151 / A21.51, “Ductile-Iron Pipe, Centrifugally Cast.”
(2)
Cement mortar lining for cast-iron water pipes shall conform to ANSI/AWWA C104 / A21.4, “Cement-Mortar Lining for Ductile-Iron Pipe and Fittings.”
(3)
Cast-iron fittings for cast-iron or ductile-iron water pipes shall conform to ANSI/AWWA C110 / A21.10, “Ductile-Iron and Gray-Iron Fittings.”
(4)
Rubber gasket joints for cast-iron and ductile-iron pressure pipe for water shall conform to ANSI/AWWA C111 / A21.11, “Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings.”