1.1 本试验方法涵盖了现场渗透单元路面系统的现场表面渗透率的测定，该系统表面为实心联锁混凝土铺路单元、混凝土网格铺路单元或粘土铺路砖。 注1: 对于现浇透水混凝土，试验方法 C1701/C1701M 应使用。试验方法 C1701/C1701M 在功能上与本标准相同，但不包括本标准详述的用于将试验环定位和固定到不连续表面的附加规定。两种测试方法得出了可比较的结果 1.2 以国际单位制或英寸-磅单位表示的数值应单独视为标准值。每个系统中规定的值可能不是精确的等效值；因此，每个系统应相互独立使用。将两个系统的值合并可能会导致不符合标准。 1.3 本试验方法的文本参考了提供解释材料的注释。这些注释不应视为试验方法的要求。 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 该试验方法可用于验收新渗透单元路面系统的表面渗透。 5.2 多年在同一位置进行的测试可用于检测渗透表面渗透率的降低，从而确定是否需要进行任何补救性维护，以将渗透率提高到预定水平。 5.3 通过该方法获得的渗透率仅适用于进行试验的路面局部区域。为了确定整个透水路面的表面渗透率，必须对多个位置进行测试，并将结果取平均值。 5.4 最小可接受渗透率通常由设计工程师或市政当局确定，并且可以是设计降水事件的函数。 5.5 如果排水缝中填充了指定用于该系统的骨料，则该试验方法也可用于证明特定透水单元路面系统的渗透率。

1.1 This test method covers the determination of the field surface infiltration rate of in place permeable unit pavement systems surfaced with solid interlocking concrete paving units, concrete grid paving units, or clay paving brick. Note 1: For in-place pervious concrete, Test Method C1701/C1701M should be used. Test Method C1701/C1701M is functionally identical to this standard, but does not include the added provisions for positioning and securing the test ring to a discontinuous surface, which are detailed in this standard. Both tests methods give comparable results 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.3 The text of this test method references notes that provide explanatory material. These notes shall not be considered as requirements of the test method. 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 This test method can be used for acceptance of surface infiltration of new permeable unit pavement systems. 5.2 Tests performed at the same location across a span of years may be used to detect a reduction of infiltration rate of the permeable surface, thereby identifying the need for any remedial maintenance intended to increase the infiltration rates to predefined levels. 5.3 The infiltration rate obtained by this method is valid only for the localized area of the pavement where the test is conducted. To determine the surface infiltration rate of the entire permeable pavement, multiple locations must be tested and the results averaged. 5.4 The minimum acceptable infiltration rate is typically established by the design engineer of record or the municipality and can be a function of the design precipitation event. 5.5 This test method can also be used to demonstrate the infiltration rate of a particular permeable unit pavement system if the drainage joints are filled with the aggregate that is specified for use in that system.