1.1 该测试方法描述了通过静态压缩位移测试定义的棒球和垒球的比较测量方法。 1.2 此测试方法基于低速率力-位移测量。 1.3 本程序适用于符合体育管理机构制定的标准的棒球和垒球。 注1: 由于棒球和垒球的压缩位移会影响性能特征，因此本测试提供了一种简单的方法，可以根据标准压缩位移测试中的力水平对这些球进行比较和分类。 1.4 以英寸-磅单位表示的数值视为标准值。括号中给出的值是数学转换为SI单位，仅供参考，不被视为标准单位。 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（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。 =====意义和用途====== 5.1 棒球或垒球的静态压缩位移是一种与动态特性相关的力学特性。 5.2 这种测试方法适用于研究和开发、质量控制以及根据压缩位移对球进行分类时获取数据。 5.3 为了保持性能的一致性，体育协会可以在官方棒球规范中使用压缩位移标准，在官方棒球和垒球规范中使用垒球标准。 5.4 同样的试验程序可以与其他压缩力一起使用，规定的力不一定与实际使用中的相同。

1.1 This test method describes a comparative measurement method for baseballs and softballs as defined by a static compression displacement test. 1.2 This test method is based on a slow rate force-displacement measurement. 1.3 This procedure is for baseballs and softballs meeting standards established by the sports' governing bodies. Note 1: Since the compression-displacement of baseballs and softballs can influence the performance characteristics, this test provides a simple method to compare and categorize such balls based on force levels in a standardized compression-displacement test. 1.4 The values stated in inch-pound units are to be regarded as 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. ====== Significance And Use ====== 5.1 The static compression-displacement of a baseball or softball is a mechanical property which can correlate to dynamic properties. 5.2 This test method is suitable for obtaining data in research and development, quality control, and classifying balls by the compression-displacement. 5.3 Sports associations can use compression-displacement standards in specifications for official baseballs and softballs standards in specifications for official baseballs and softballs for purposes of consistency of performance. 5.4 This same test procedure can be utilized with other compressive forces and the specified force is not necessarily the same as experienced in actual use.