1.1 本规范规定了锻铜和铜合金线的通用要求，并应适用于规范 B16/B16M , B99/B99M , B134/B134M , B159/B159M , B197/B197M , B206/B206M , B272型 , B301/B301M , B453/B453M , B967/B967M , B974/B974M 和 B981/B981M 在本文提及的范围内。 1.2 本规范中未包括的化学成分、物理和机械性能以及所有其他要求应在产品规范中规定。 1.3 单位- 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。在本文中，国际单位制显示在括号中。每个系统中规定的值不一定是精确的等价物；因此，每个系统应独立使用，且两个系统的值不得组合。 1.4 以下安全危险警告仅适用于本规范中所述的试验方法。 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制定适当的安全、健康和环境实践，并在使用前确定监管限制的适用性。 1.5 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====== 12.1 为了确定是否符合下表所列特性要求的规定限值，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 观察到的四舍五入单位 或计算值 尺寸 化学成分 硬度 电阻率/电导率 最近的单位 右侧有效 用于表达的数字 极限值 抗拉强度 屈服强度 最近ksi[5 MPa] 伸长率 低于5 % 0.5的最近倍数 % 5. % 和以上 最近的1 % 粒度 0.060毫米以下 0.005 mm的最近倍数 0.060 mm及以上 最接近0.01毫米

1.1 This specification establishes requirements common to wrought copper and copper alloy wire and shall apply to Specifications B16/B16M , B99/B99M , B134/B134M , B159/B159M , B197/B197M , B206/B206M , B272 , B301/B301M , B453/B453M , B967/B967M , B974/B974M , and B981/B981M to the extent referenced therein. 1.2 The chemical composition, physical and mechanical properties, and all other requirements not included in this specification shall be prescribed in the product specification. 1.3 Units— Values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, each system shall be used independently of the other and values from the two systems shall not be combined. 1.4 The following safety hazard caveat pertains only to the test methods described in this specification. 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 to determine the applicability of regulatory limitations prior to use. 1.5 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 ====== 12.1 For the purpose of determining compliance with the specified limits for requirements of the properties listed in the following table, an observed value or calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29 . Property Rounded Unit for Observed or Calculated Value Dimensions Chemical composition Hardness Electrical resistivity/conductivity nearest unit in the last right-hand significant digit used in expressing the limiting value Tensile strength Yield strength nearest ksi [5 MPa] Elongation Below 5 % nearest multiple of 0.5 % 5 % and over nearest 1 % Grain size Under 0.060 mm nearest multiple of 0.005 mm 0.060 mm and over nearest 0.01 mm