1.1 本试验方法涵盖通过在运动表面上进行机械冲击试验产生的冲击力的定量测量和归一化。本试验方法中模拟的冲击力旨在代表运动员在运动或运动表面着陆过程中下肢产生的冲击力。 1.2 本试验方法可适用于进行体育活动的任何表面。 1.3 所述测试方法适用于实验室和现场设置。 1.4 以国际单位制表示的数值应视为标准值。括号中给出的值仅供参考。 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）。本标准的用户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 减力特性只是用于运动活动的表面的重要特性之一。它可能是表面性能、安全性、舒适性或适用性的指标。 5.2 运动表面制造商可使用该试验方法评估设计变更对表面产生的冲击力的影响。 5.3 设施所有者可使用本标准评估现有运动/运动场地的性能。在选择替换表面或添加到设施中的其他运动表面的过程中，结果可能有用。 5.4 设施所有者也可以使用此测试方法来验证新安装的表面是否达到或接近项目规范中包含的水平。

1.1 This test method covers the quantitative measurement and normalization of impact forces generated through a mechanical impact test on an athletic surface. The impact forces simulated in this test method are intended to represent those produced by lower extremities of an athlete during landing events on sport or athletic surfaces. 1.2 This test method may be applied to any surface where athletic activity may be conducted. 1.3 The test methods described are applicable in both laboratory and field settings. 1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 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 force reduction property is just one of the important properties of a surface used for athletic activity. It may be an indicator of the performance, safety, comfort, or suitability of the surface. 5.2 Manufacturers of athletic surfaces may use this test method to evaluate the effects of design changes on the impact forces generated on the surface. 5.3 Facility owners may use this standard to evaluate the performance of existing sport/athletic surfaces. Results may be useful during the selection process for a replacement surface, or for an additional athletic surface being added to the facility. 5.4 Facility owners may also use this test method to verify that newly installed surfaces perform at or near the levels included in project specifications.