1.1 本试验方法用于使用轻型便携式仪器测定天然草坪和土壤运动表面系统的冲击衰减特性。该测试方法可用于比较自然场地系统的冲击衰减特性，以及评估管理实践对冲击衰减特性的影响。该测试方法也可用于通过记录评估自然播放表面的紧凑性 g -连续冲击的最大值或穿透力，或两者兼有。 1.2 该测试方法提供了一种评估现场实际比赛场地和研究场地上冲击衰减特性的程序。 数值数据将无法与使用不同导弹质量或几何形状、不同跌落高度或不同标准方法（例如测试方法）获得的数据进行比较 F1936 . 1.3 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.4 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。 1.5 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 这个 g -通过这些程序获得的最大值表示用于美式足球、足球、棒球、长曲棍球、橄榄球等运动的运动表面的冲击衰减特性。可使用可选的时间历史数据进一步描述这些特性。

1.1 This test method is used to determine the impact-attenuation characteristics of natural turfgrass and soil playing surface systems with a lightweight portable apparatus. This test method can be used to compare the impact attenuation characteristics of natural playing surface systems, as well as assessing the effects of management practices on the impact attenuation characteristics. This test method also can be used to assess the compactibility of natural playing surfaces by recording g -max values or penetration of successive impacts, or both. 1.2 This test method provides a procedure for assessing impact attenuation characteristics in the field, on both actual playing surfaces and research plots. Numerical data will not be comparable to data obtained using a different missile mass or geometry, different drop height, or different standard method, for example, Test Method F1936 . 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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. ====== Significance And Use ====== 5.1 The g -max values obtained by these procedures are indicative of the impact attenuation characteristics of playing surfaces used for sports such as American football, soccer, baseball, lacrosse, rugby, etc. Optional time history data can be used to further describe these properties.