This Standard is for factory made 1/4 inch to 12 inch welded fabricated copper pressure fittings. It covers:
a) Pressure temperature ratings; b) Abbreviations for end connections; c) Size and method of designating openings of fittings; d) Marking; e) Material; f) Weld specifications; g) Laying lengths; h) Inspection tolerance; j) Alignment; k) Tests; 1) Gaging.