1.1 本规范规定了用于制造由铜合金UNS编号C41100和C50500生产的柔性金属软管的退火铜合金带的要求。 1.1.1 标称成分如下: 铜合金 UNS编号。 铜 锌 锡 C41100 91 8.5 0.5 C50500 98.7 . 1.3 1.2 单位- 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 晶粒尺寸以国际单位制表示。 1.3 以下安全危险警告仅适用于测试方法部分第节 14 ，在本规范中描述: 1.3.1 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户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。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 15.1 为了确定是否符合下表所列特性要求的规定限值，以及尺寸公差，应按照实践中的舍入方法对观察值或计算值进行舍入 E29年 : 所有物 %观察到的或 计算值 化学成分 最近的单元位于最后一个右侧位置 指定极限的位数 粒度 最接近0的倍数。 005毫米

1.1 This specification establishes the requirements for annealed copper-alloy strip for the manufacture of flexible metal hose produced from Copper Alloy UNS Nos. C41100 and C50500. 1.1.1 The nominal compositions are as follows: Copper Alloy UNS No. Copper Zinc Tin C41100 91.0 8.5 0.5 C50500 98.7 . 1.3 1.2 Units— 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. Grain size is given in SI units. 1.3 The following safety hazard caveat pertains only to the test methods portion, Section 14 , described in this specification: 1.3.1 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. 1.4 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 ====== 15.1 For purposes of determining compliance with the specified limits for requirements of the properties listed in the following table, and for dimensional tolerances, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29 : Property % Rounded Unit for Observed or Calculated Value Chemical composition nearest unit in the last right hand place of figures of the specified limit Grain size nearest multiple of 0.005 mm