本文件规定了产品特性、评估方法、测试结果的符合性标准，以及用于连接铜管的带有毛细管钎焊或毛细管钎焊端头的配件的命名系统，例如EN 1057、EN 13348、EN 13349、EN 12735-1、EN 12735-2等，用于连接铜管，接头端的标称直径为6 mm至108 mm。这些配件端部有三种形式:端部进料配件、整体焊料和整体钎焊环配件端部。这些配件的使用寿命长达50年。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies product characteristics, assessment methods, compliance criteria of the test results and a designation system for fittings with ends for capillary soldering or capillary brazing for connecting with copper tubes e.g. EN 1057, EN 13348, EN 13349, EN 12735-1, EN 12735-2 etc. For the purposes of joining copper tubes, the fitting ends have a nominal diameter from 6 mm to 108 mm. These fitting ends exist in three forms: end feed fittings, integral solder and integral brazing ring fitting ends. The fittings are designed for a service lifetime up to fifty years.All current amendments available at time of purchase are included with the purchase of this document.