1.1 本规范涵盖了各种铜基粉末冶金(PM)结构材料，包括那些在需要高导电性的应用中使用的材料。它包括分类系统或材料指定代码。对于分类系统，该规范包括化学成分和最小拉伸屈服强度。 附注1: 段落 6.1 和 8.1 通过指定代码管理材料分类。附录中解释了分类系统。 附注2: 分类为C-0000的材料预期用于需要高导电性的应用中。 1.2 单位- 密度值除外，其中克/立方厘米 3 )单位为行业标准，以英寸-磅单位表示的值应被视为标准。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准。 1.3 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》中确立的国际公认的标准化原则制定的。

1.1 This specification covers a variety of copper base powder metallurgy (PM) structural materials, including those used in applications where high electrical conductivity is required. It includes a classification system, or material designation code. With the classification system, this specification includes chemical composition and minimum tensile yield strength. Note 1: Paragraphs 6.1 and 8.1 govern material classification by the designation code. The classification system is explained in the Appendix. Note 2: Materials classified as C-0000 are expected to be used in applications where high electrical conductivity is required. 1.2 Units— With the exception of density values, for which the gram per cubic centimetre (g/cm 3 ) unit is the industry standard, the values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 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.