本标准规定了锻铜和锻铜合金钎焊接头无缝管件的要求，这些管件设计用于符合ASTM标准规范、B88（水和一般管道系统）、B280（空调和制冷服务）和B819（医用气体系统）的无缝铜管。本标准涵盖使用符合AWS A5的钎焊材料组装的接头。8M/A5。8.本标准与ASME B16一致。18和ASME B16。22.它规定了适合钎焊的装配端的要求。 本标准涵盖（a）压力温度额定值（b）端部连接的缩写（c）管件开口的尺寸和指定方法（d）标记（e）材料（f）尺寸和公差（g）测试

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 AWS A5.8M/A5.8.This Standard is allied to ASME B16.18 and ASME 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(g) testing