1.1 该实践建立了一个程序，使用在同行评审研究中由人类受试者排名和区分的参考材料来验证走道摩擦测量。 1.2 本规程描述了参考材料的必要材料、规格和清洁过程。 1.3 这种做法适用于走道摩擦计，而不考虑其产生的读数的性质。 1.4 本规程定义的验证程序并非旨在为任何走道表面建立“安全”阈值。 1.5 以国际单位制表示的值应被视为标准值。括号中给出的值仅供参考，不被视为标准值。 1.6 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。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》中确立的国际公认的标准化原则制定的。 =====意义和用途====== 5.1 为了有意义，走道摩擦计 测试结果 必须与人类在滑倒可能性不同的特定行走表面条件下行走的表现联系起来。 验证 根据这一做法，不适用于整个类别或型号的摩擦计；它适用于由进行验证的人员操作的单个摩擦计单元。 5.1.1 当 用户 执行 验证 ，这表明摩擦计/操作员通过了三个 验证 标准如下 重复性条件 .当 协调员 执行 验证 ，这表明摩擦计/操作员通过了三个 验证 标准如下 再现性条件 .作为 再现性极限 对于特定的RM，其值可能大于 重复性极限 ，对于摩擦计来说，通过可能更具挑战性 验证 当尝试时 协调员 从统计数据来看，a 协调员 -经过验证的摩擦计能够更好地适应多个操作员。 5.2 本规程规定了一系列已知相对滑动电位从高到低（由实验室条件下的人体测试确定）的RM，应在此基础上验证走道摩擦计。每个RM的相对滑动潜力是通过人类受试者行走试验确定的。 5. 5.3 验证过程所依据的科学研究是在选定的年轻人群体（平均年龄25岁，范围21至40岁）中进行的，这些年轻人在水平面上以1.4 m/s±5%的平均步行速度直线行走时没有明显的步态偏差。据报道，这种行走速度是没有步态病理的成年人的正常行走速度。 6. 5.4 所有受试者都穿着吉布森风格的鞋子，鞋底由肖氏硬度为75A的光滑丁苯橡胶（SBR）制成。鞋款和鞋底材料并不能代表市场上所有的组合。 5.5 本规程中定义的RM（见 附件A1 )并非代表所有走道表面。会议结果 验证 实践仅反映了本实践中定义的RM类型和表面条件的性能。所使用的RM来自专门通过ASTM控制的采购提供的特定制造批次的产品，这些产品不一定代表同一产品的其他制造批次。研究出版物中提供了有关RM的信息。 5. 验证 本规程定义的人行道摩擦计并不意味着 验证 在滑块材料和走道表面的所有组合下。

1.1 This practice establishes a procedure for validating walkway tribometry using reference materials that have been ranked and differentiated by human subjects in a peer-reviewed study. 1.2 This practice describes the necessary materials, specifications, and cleaning processes for reference materials. 1.3 This practice applies to walkway tribometers without reference to the nature of the scale of the readings produced by them. 1.4 The validation procedure defined by this practice is not intended to establish a “safe” threshold value for any walkway surface. 1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only and are not considered 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 To be meaningful, walkway tribometer test results must be linked to the performance of humans walking over specific walking surface conditions that vary in slip potential. Validation under this practice does not apply to an entire class or model of tribometers; it applies to an individual tribometer unit as operated by the person conducting the validation. 5.1.1 When the user performs the validation , it demonstrates that the tribometer/operator passes the three validation criteria under repeatability conditions . When the coordinator performs the validation , it demonstrates that the tribometer/operator passes the three validation criteria under reproducibility conditions . As the reproducibility limit for a particular RM may be greater than the repeatability limit , it may be more challenging for a tribometer to pass validation when attempted by the coordinator . Statistically, a coordinator -validated tribometer better accommodates multiple operators. 5.2 This practice prescribes a series of RMs with known relative slip potential ranging from high to low (as determined by human testing in laboratory conditions) upon which walkway tribometers shall be validated. The relative slip potential of each RM was established from human subject walking trials. 5 5.3 The scientific study upon which the validation process is based was conducted with a select population of younger adults (mean age 25 years, range 21 to 40 years) who were free from significant gait deviations while walking in a straight path on a level surface with a mean walking velocity of 1.4 m/s ± 5 %. This walking velocity is reported as the normal walking velocity for adults without gait pathology. 6 5.4 All subjects walked in Gibson-style shoes whose soles were constructed of smooth styrene butadiene rubber (SBR) with 75A Shore hardness. The shoe style and sole material is not representative of all combinations available in the marketplace. 5.5 The RMs defined in this practice (see Annex A1 ) are not representative of all walkway surfaces. The outcome of the validation practice reflects performance on the type of RMs and surface conditions defined in this practice only. The RMs utilized are from specific manufacturing lots of product made available exclusively through ASTM-controlled sourcing, which are not necessarily representative of other manufacturing lots of the same product. Information on the RMs is available in the study publication. 5 Validation of a walkway tribometer as defined by this practice does not imply validation under all combinations of slider materials and walkway surfaces.