1.1 本试验方法涵盖了使用动态摩擦测试仪（DF测试仪）测量作为速度函数的表面摩擦特性的程序。 1.2 DF测试仪由一个装有三个弹簧加载橡胶滑块的水平旋转圆盘组成，由于滑块和表面之间产生的摩擦，当圆盘转速降低时，这些滑块与表面接触。供水单元将水输送到被测试表面。然后，在减速期间测量的滑块力产生的扭矩用于计算作为速度函数的摩擦。 1.3 DF测试仪可用于实验室研究和现场 原位 表面。 1.4 以SI（公制）单位表示的值应被视为标准值。英寸-磅当量是合理化的，而不是精确的数学转换。1.5 Nippo Sangyo动态摩擦测试仪拥有专利。邀请感兴趣的各方向ASTM国际总部提交有关确定该专利项目替代品的信息。您的意见将在负责的技术委员会会议上得到认真考虑， 1 你可以参加。 1.6 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。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法规限制的适用性。 1.7 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》中确立的国际公认的标准化原则制定的。======意义和用途====== 5.1 该测试方法在现场或实验室中提供了作为滑动速度函数的表面摩擦的测量。 5.2 该测试方法可用于确定各种抛光技术对材料或材料组合的相对影响。 5.3 根据该方法测量的值不一定与利用确定摩擦特性或防滑性的其他方法获得的值一致或直接相关。

1.1 This test method covers the procedure for measuring surface frictional properties as a function of speed using the dynamic friction tester (DF tester). 1.2 The DF tester consists of a horizontal spinning disk fitted with three spring-loaded rubber sliders which contact the surface as the disk rotational speed decreases due to the friction generated between the sliders and the surface. A water supply unit delivers water to the surface being tested. The torque generated by the slider forces measured during the spin-down is then used to calculate the friction as a function of speed. 1.3 The DF tester can be used for laboratory investigations and in the field on in situ surfaces. 1.4 The values stated in SI (metric) units are to be regarded as standard. The inch-pound equivalents are rationalized, rather than exact mathematical conversions. 1.5 The Nippo Sangyo dynamic friction tester is covered by a patent. Interested parties are invited to submit information regarding the identification of an alternative(s) to this patented item to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, 1 which you may attend. 1.6 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. 1.7 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 This test method provides a measure of surface friction as a function of sliding speed, either in the field or in a laboratory. 5.2 This test method can be used to determine the relative effects of various polishing techniques on materials or material combinations. 5.3 The values measured in accordance with this method do not necessarily agree or directly correlate with those obtained utilizing other methods of determining friction properties or skid resistance.