1.1 本试验方法包括确定车辆对行驶表面粗糙度的响应。 1.2 该试验方法使用一种仪器，该仪器测量簧载质量系统对行驶表面粗糙度的相对运动，其中质量由汽车型悬架和轮胎支撑。 1.3 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。 具体的预防说明见第节 6. . 1.4 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》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 该试验方法提供了一种评估行驶表面粗糙度的方法。测量值表示用本文所述设备和程序获得的车辆对行驶表面粗糙度的响应，不一定与通过其他方法获得的值一致或直接相关。 3

1.1 This test method covers the determination of vehicular response to traveled surface roughness. 1.2 This test method utilizes an apparatus that measures the relative motion of a sprung mass system in response to traveled surface roughness where the mass is supported by automotive-type suspension and tires. 1.3 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. Specific precautionary statements are given in Section 6 . 1.4 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 ====== 4.1 This test method provides a means of evaluating traveled surface roughness. The measured values represent vehicular response to traveled surface roughness obtained with the equipment and procedures stated herein and do not necessarily agree or correlate directly with those obtained by other methods. 3