1.1 本规程涵盖了通过钎焊铜和铜合金管及配件制造毛细管接头的程序。 1.2 本程序适用于加压系统，如管道、供暖、空调、制冷、机械、喷水灭火器和其他类似系统。ASME B31.5和B31.9参考了用于令人满意的接头制备的技术。它也用于非加压系统的组装，如排水、废物和通风口。 1.3 它不适用于电气或电子系统的组装。 1.4 卡套管和配件在一定的公差范围内制造，以提供与制造实践相关的尺寸的微小变化。中列出了适用的规范 附录X1 . 1.5 有多种焊料可供选择，可产生良好的密封接头。焊料的选择将取决于应用类型和当地规范。对于饮用水系统，只能使用无铅焊料，规范中对其中一些进行了说明 B32 . 1.6 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 1.7 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 有关危险说明，请参阅中的警告说明 6.4.1 , 6.6.1 和 6.6.3 . 1.8 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 5.1 本文所述技术用于产生泄漏- 铜和铜合金管及配件之间的紧密焊接接头，无论是在车间操作中还是在现场。操作员或机械师的技能和知识是获得令人满意的焊接接头所必需的。

1.1 This practice covers a procedure for making capillary joints by soldering of copper and copper alloy tube and fittings. 1.2 This procedure is applicable to pressurized systems such as plumbing, heating, air conditioning, refrigeration, mechanical, fire sprinkler, and other similar systems. ASME B31.5 and B31.9 reference the techniques used for satisfactory joint preparation. It is also used in the assembly of nonpressurized systems such as drainage, waste, and vent. 1.3 It is not applicable to the assembly of electrical or electronic systems. 1.4 Tube and fittings are manufactured within certain tolerances to provide for the small variations in dimensions associated with manufacturing practice. Applicable specifications are listed in Appendix X1 . 1.5 A variety of solders are available that will produce sound, leak-tight joints. Choice of solder will depend upon the type of application and on local codes. For potable water systems, only lead-free solders shall be used, some of which are described in Specification B32 . 1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For hazard statements, see the warning statements in 6.4.1 , 6.6.1 , and 6.6.3 . 1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 The techniques described herein are used to produce leak-tight soldered joints between copper and copper alloy tube and fittings, either in shop operations or in the field. Skill and knowledge on the part of the operator or mechanic are required to obtain a satisfactorily soldered joint.