1.1 本试验方法描述了一种标准程序，用于确定砖墙排水系统在暴雨期间收集穿透外部砖墙的水并将这些水引导回墙体外表面的能力。 1.2 本试验方法适用于包含外部砌石夹层的墙体系统，外部砌石夹层的内表面上有排水区。它不适用于排水墙的单个WY。 1.3 本试验方法不适用于砌石挡墙或其他设计在外部wythe后面没有排水区的砌石墙。 1.4 本测试方法涵盖了使用英寸-磅或国际单位制进行测试的应用。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。在文本中，英寸-磅单位显示在括号中。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。 1.5 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。 1.6 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 本试验方法适用于墙体，以确定砌体墙排水系统收集穿透外部排水沟的水并将水引导回外部排水沟外表面的能力。 拆除一部分内墙饰面是为了观察到渗漏到背墙中。即使去除了内部饰面，在许多情况下，观察拱肩梁、柱或其他障碍物后面的表面也是不现实的。在解释试验结果时，应考虑可能发生泄漏但在试验过程中不可见的潜在区域，并将其记录在报告中。 5.2 该试验方法适用于模型墙，以确定砌体墙排水系统的性能。 5.3 本试验方法适用于评估泛水维修的有效性。

1.1 This test method describes a standard procedure for determining the ability of masonry wall drainage systems to collect water that penetrates the exterior masonry wythe during rainstorms and to direct this water back to the exterior surface of the wall. 1.2 This test method is applicable to wall systems that contain an exterior masonry wythe with a drainage zone on the interior face of the exterior wythe. It is not applicable to single-wythe drainage walls. 1.3 This test method is not applicable to masonry barrier walls or other masonry walls that are designed without drainage zones behind the exterior wythe. 1.4 This test method covers the application of the testing using either inch-pound or SI units. The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. 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 nonconformance with the standard. 1.5 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. 1.6 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 is suitable for use on walls to determine the ability of masonry wall drainage systems to collect water penetrating the exterior wythe and to direct this water back to the exterior surface of the exterior wythe. Removal of a portion of the interior wall finishes is desirable to observe leakage into backup walls. Even with removal of interior finishes, in many cases it is not practical to observe surfaces behind spandrel beams, columns, or other obstructions. Potential areas where leakage may occur but that are not visible during the test shall be considered when interpreting the results of the test and shall be recorded in the report. 5.2 This test method is suitable for use on mock-up walls to determine the performance of masonry wall drainage systems. 5.3 This test method is suitable for evaluating the effectiveness of flashing repairs.