1.1 本规范涵盖了技术上重要的、市售的、磁性硬烧结铁氧体永磁体。 1.2 铁氧体永磁体具有残余感应 B r 从0.2T（2000G）到约0.5T（5000G）和本征矫顽场强 H cJ公司 从160 kA/m（2000Oe）至约400kA/m）。它们的特定磁滞特性（退磁曲线）可以使用测试方法进行表征 A977/A977米 . 1.3 以国际单位表示的值应视为标准值。括号中给出的数值是对惯用单位（cgs-emu和英磅）的数学转换，仅供参考，不被视为标准单位。 1.4 本标准并不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建立适当的安全、健康和环境实践，并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 technically important, commercially available, magnetically hard sintered ferrite permanent magnets. 1.2 Ferrite permanent magnets have residual induction B r from 0.2 T (2000 G) up to about 0.5 T (5000 G) and intrinsic coercive field strength H cJ from 160 kA/m (2000 Oe) up to about 400 kA/m (5000 Oe). Their specific magnetic hysteresis behavior (demagnetization curve) can be characterized using Test Method A977/A977M . 1.3 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. 1.4 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. 1.5 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.