1.1 本规范涵盖了用作仪器和薄壁滚珠轴承保持架（保持架）的多孔层压环氧树脂材料所需的基本特性以及确定这些特性的方法。 1.2 表单- 板材和轧制管是本规范所涵盖的层压材料的推荐形式。 1.3 预期用途- 按照本规范生产的材料旨在用作滚珠轴承护圈（保持架）。温度范围限制为284 °F（140 °C）及以下。 1.4 单位- 以英寸-磅单位表示的值应视为标准值。括号中给出的值是对SI单位的数学转换，仅供参考，不被视为标准值。 1.5 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。 1.6 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《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。

1.1 This specification covers basic characteristics required for porous laminated Epoxy materials intended for use as instrument and thin-section ball-bearing retainers (cages) and the methods of determining these characteristics. 1.2 Forms— Sheets and Rolled Tubes are recommended forms of laminated material covered by this specification. 1.3 Intended Use— Materials produced to this specification are intended for use as ball bearing retainers (cages). Temperature range is limited to 284 °F (140 °C) and below. 1.4 Units— 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. 1.5 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.