1.1 该测试方法用于使用行走速度连续摩擦测量设备（CFME）固定滑移测量设备测量各种交通表面和各种环境下的防滑性。固定滑移率通常为12至20 % 但可在CFME制造商之间变化。 1.2 行走速度CFME能够在高速CFME由于安全原因或操作空间有限而无法测量的情况下进行表面摩擦测量。行走速度CFME由电池驱动，并由操作员以正常行走速度向前推动。 1.3 行走速度CFME使摩擦测量能够在短距离内进行，测量线精确，例如每100 mm沿着测量线。 1.4 摩擦测量可以在干燥表面、潮湿表面、污染表面或具有自润湿功能的表面上进行。 1.5 单位- 以国际单位表示的数值应视为标准。本标准不包括其他计量单位。 1.6 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建立适当的安全、健康和环境实践，并确定监管限制的适用性。 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 行走速度CFME用于测量人行道/人行道、道路、修复路面、水平路面标线、直升机甲板和其他交通表面的防滑性。 5.2 行走速度CFME设计用于低速表面摩擦测量。 5.3 行走速度CFME不需要加速或减速区域。摩擦测量从静止或滚动开始。 5.4 步行速度CFME可以在距离人和障碍物非常近的地方工作。 5.5 本规范 1844年 测量轮胎是安装在行走速度CFME上的光滑轮胎。设计用于行走速度CFME的备用轮胎需要新的ASTM轮胎标准。 ASTM轮胎标准应输入本标准的参考文件部分。 5.6 行走速度CFME可专门用于特定区域，如直升机甲板，并具有特定表面区域的专用软件应用程序。看见 图1 . 图1 直升机甲板软件程序 5.7 如果需要，现场校准/现场测试设备应装在运输箱中，便于现场使用。看见 图2 . 图2 带拉手和车轮的运输箱

1.1 This test method is used to measure skid resistance on a wide range of trafficked surfaces and for a wide variety of circumstances using a walking speed continuous friction-measuring equipment (CFME) fixed-slip measuring equipment. The fixed-slip ratio is typically 12 to 20 % but may vary between CFME manufacturers. 1.2 Walking speed CFME enables surface friction surveys to be conducted where high-speed CFME is not able to measure because of safety reasons or due to limited operating space. Walking speed CFME is battery operated and pushed forward at a normal walking pace by the operator. 1.3 Walking speed CFME enables friction surveys to be undertaken over short lengths with precise survey lines such as friction (Mu) values for every 100 mm along a survey line. 1.4 Friction surveys can be conducted on dry surfaces, wet surfaces, contaminated surfaces, or with a self-wetting feature. 1.5 Units— The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard. 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 Walking speed CFME is used to measure skid resistance on pavements/sidewalks, roads, repaired pavements, horizontal pavement markings, helidecks, and other trafficked surfaces. 5.2 Walking speed CFME is designed for low-speed surface friction surveys. 5.3 Walking speed CFME does not require acceleration or deceleration areas. Friction surveys begin from a standing or rolling start. 5.4 Walking speed CFME can work in very close proximity to people and obstacles. 5.5 The Specification E1844 measure tire is a smooth tire that is mounted on walking speed CFME. A new ASTM tire standard is required for alternate tires designed for use on walking speed CFME. ASTM tire standards shall be entered in the referenced documents section of this standard. 5.6 Walking speed CFME can be specialized to operate in specific areas, such as helidecks, with a specialized software application for a specific surface area. See Fig. 1 . FIG. 1 Software Program for Helidecks 5.7 The field calibration/field test equipment, if required, should be contained within a transport case, readily available for field use. See Fig. 2 . FIG. 2 Transport Case with Pull Handle and Wheels