This Standard covers cast Classes 125 and 250 copperalloy threaded pipe fittings with provisions for substitutingwrought copper alloys for plugs, bushings, caps,and couplings in small sizes. This Standard includes thefollowing:

(a) pressure-temperature ratings
(b) size and method of designating openings of reducingpipe fittings
(c) marking requirements
(d) minimum requirements for casting quality andmaterials
(e) dimensions and tolerances in SI (metric) andU.S. Customary units
(f) threading requirements
(g) pressure test requirements

Mandatory Appendix I provides table values inU.S. Customary units.