1.1 本规范涵盖各种铜基粉末冶金（PM）结构材料，包括用于要求高导电性的应用中的材料。它包括一个分类系统或材料名称代码。根据分类系统，本规范包括化学成分和最小拉伸屈服强度。 注1: 段落 6.1 和 8.1 根据指定代码管理材料分类。附录中解释了分类系统。 注2: 分类为C-0000的材料预计将用于要求高导电性的应用中。 1.2 单位- 密度值除外，其单位为克每立方厘米（g/cm 3. )单位为行业标准，数值单位为英寸- 磅单位应视为标准。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。 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.