1.1 本试验方法涵盖了一个程序，用于确定外部绝缘和饰面系统（EIFS）的一部分对施加在建筑物上已放置一段未指定时间的现有外墙组件上的外部负载的阻力。它在测试的局部区域内具有破坏性，一旦测试程序完成，需要对EIFS覆层和护套进行适当的维修。该测试程序利用机械方法获取信息，这可能有助于评估负风荷载在EIFS组件上的自然应用。由于安装程序的差异、暴露或应用后的滥用，应预计测试的墙壁组件内的结果会有一些变化。 1.2 本试验方法适用于放置时间较短（新结构）以及放置时间较长的覆层组件，以评估暴露于天气和其他环境条件后对EIFS薄板、绝缘附件、基板完整性和附件的有害影响。 其目的不是评估结构框架的性能。根据样本位置和条件，任何特定建筑物的测试结果可能会发生很大变化，并由测试规范人进行解释。 1.3 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。 1.4 本标准可能涉及危险材料、操作或设备。本标准并非旨在解决与其使用相关的所有安全问题。本标准的用户有责任制定适当的安全、健康和环境实践，并在使用前确定监管限制的适用性。 注1: 由于暴露和施工组件的变化，使用本试验方法进行试验的现场样本可能会经历突然失效和施加荷载的释放。看见 附注7 了解更多信息。 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====== 4.1 本试验方法的目的是评估安装的充分性和与服务相关的劣化（水分等）对EIFS墙体组件的整体影响，而不是小的局部劣化区域。通过该测试确定的抗拉力测试被用作评估特定项目上EIFS组件的因素之一。 通过本试验方法获得的值并不代表特定EIFS复合墙安装的实际风荷载能力或其他结构特性，但可能有助于评估此类荷载能力。 4.2 由于本测试用于现有设施的现场评估，因此必须根据良好的工程实践、适用的建筑法规和有管辖权的规范解释本测试获得的负载结果。测试指定人可自行决定是否直接使用本测试方法得出的结果，或使用具有适当安全系数的测试结果，以获得每个项目的可接受工作负载。 4.3 本方法适用于现有建筑物上出现或安装的试样。暴露在潮湿和其他天气条件下后，EIFS墙体组件的外向风荷载阻力损失可能会影响覆层或其他墙体组件在适当位置的性能。 本试验方法不提供任何将试验结果推广到较大墙体面积的方法。此类工作应基于经验和工程判断。 4.4 施加试验荷载的方式可能会影响使用本试验方法获得的荷载能力。本文讨论了各种负载应用技术及其效果 附录X1 .

1.1 This test method covers a procedure to determine the resistance of a section of the exterior insulation and finish system (EIFS) to outward loads imposed on an existing exterior wall assembly that has been in place on the building for an unspecified period of time. It is destructive in nature within the localized areas tested and requires appropriate repair of the EIFS cladding and sheathing once the test procedure has been completed. This test procedure utilizes mechanical methods to obtain information, which may be helpful in evaluating the natural application of negative wind loads on the EIFS assembly. Some variability of results should be anticipated within the wall assembly tested due to differences in installation procedures, exposure, or abuse subsequent to application. 1.2 This test method is suitable for use on cladding assemblies that have been in place a short time (new construction), as well as for longer periods in order to evaluate detrimental effects on the EIFS lamina, insulation attachment, substrate integrity, and attachments after exposure to weather and other environmental conditions. It is not intended to evaluate the performance of structural framing. Test results on any particular building may be highly variable depending on specimen location and condition, and are subject to interpretation by the test specifier. 1.3 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. 1.4 This standard may involve hazardous materials, operations, or equipment. This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and to determine the applicability of regulatory limitations prior to use. Note 1: Due to variations in exposure and construction assemblies, field specimens selected for testing utilizing this test method may experience sudden failure and release of the imposed loads. See Note 7 for further information. 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 ====== 4.1 The purpose of this test method is to assess the installation adequacy and the overall effects of service-related deterioration (moisture, etc.) on the EIFS wall assembly as opposed to small localized areas of degradation. Resistance to pull testing as determined by this test is used as one of the factors in evaluating the EIFS assembly on a specific project. The values obtained by this test method are not purported to be representative of the actual wind load capacity or other structural properties of a specific EIFS clad wall installation, but may be helpful in assessing such load capacities. 4.2 Since this test is used for field evaluation of existing facilities, load results obtained from this test must be interpreted based on sound engineering practice, applicable building regulations, and codes having jurisdiction. It is the discretion of the test specifier to directly utilize the results derived by this test method, or else to utilize the test results with an appropriate factor of safety to obtain acceptable working loads for each project. 4.3 This method is intended for use on test specimens occurring or installed on existing buildings. The loss of outward wind load resistance of an EIFS wall assembly after exposure to moisture and other weather conditions may compromise the ability of the cladding or other wall components to perform adequately in place. This test method does not provide any means by which the test results may be generalized to the larger wall area. Such efforts should be based on experience and engineering judgement. 4.4 The manner in which the test load is applied may affect the load capacity obtained from using this test method. A discussion of various load application techniques and their effects is given in Appendix X1 .