1.1 本规范涵盖由铁磷粉末冶金材料生产的零件。这些零件用于磁性应用，其要求比通常由铁粉生产的零件更高的磁导率和电阻率以及更低的矫顽场强。 1.2 涵盖了两种粉末类型；I型含有标称0.45重量%的磷，II型含有标称0.8重量%的磷酸盐。 1.3 本规范涉及处于烧结或退火状态的粉末冶金零件。如果对烧结零件进行任何导致机械应变的二次操作，如机械加工或定尺寸，则应重新烧结或退火。 1.4 以国际单位制表示的数值应视为标准。 括号中给出的值是对常用单位（cgs-emu和英寸-磅）的数学转换，这些单位仅供参考，不被视为标准单位。 1.5 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。 1.6 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。

1.1 This specification covers parts produced from iron-phosphorus powder metallurgy materials. These parts are used in magnetic applications requiring higher permeability and electrical resistivity and lower coercive field strength than attainable routinely from parts produced from iron powder. 1.2 Two powder types are covered; Type I containing nominally 0.45 wt.% phosphorus, and Type II containing nominally 0.8 wt.% phosphorus. 1.3 This specification deals with powder metallurgy parts in the sintered or annealed condition. Should the sintered parts be subjected to any secondary operation that causes mechanical strain, such as machining or sizing, they should be resintered or annealed. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to customary (cgs-emu and inch-pound) units, which are provided for information only and are not considered standard. 1.5 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. 1.6 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.