This Standard for cast copper alloy pipe flanges and flanged fittings covers: (a) pressure-temperature ratings; (b) sizes and methods of designating openings for reduced fittings; (c) marking; (d) materials; (e) dimensions; (f) bolting and gaskets; (g) tolerances; and (h) tests. This Standard covers pressure temperature ratings, materials, dimensions, tolerances, gaskets, and tests for Classes 150, 300, 600, 900, 1500, and 2500 Cast Copper Pipe Flanges and Flanged Fittings.