This Standard establishes requirements for wrought copper and wrought copper alloy braze joint seamless fittings designed for use with seamless copper tube conforming to ASTM Standard Specification, B 88 (Water and General Plumbing Systems), B 280 (Air Conditioning and Refrigeration Service), and B 819 (Medical Gas Systems). This Standard covers joints assembled with brazing materials conforming to ANSI/AWS A5.8. This Standard is allied to ASME standards B16.18 and B16.22. It provides requirements for fitting ends suitable for brazing. This Standard covers: (a) pressure-temperature ratings, (b) abbreviations for end connections, (c) size and method of designating openings of fittings, (d) marking, (e) material, (f) dimensions and tolerances, and (g) testing.