ASME B16.26-2018 PDF
This Standard establishes specifications for cast copper alloy fittings and nuts used with flared seamless copper tube conforming to ASTM B 88 (water and general plumbing systems). Included are requirements for the following:
(a) pressure rating;
(b) size;
(c) marking;
(d) material;
(e) dimensions;
(f) threading and
(g) hydrostatic testing.