1.1 本火灾测试响应标准规定了一种方法，用于评估在“荒地-城市界面”场景中可能遇到的模拟外部火灾暴露中暴露于直接火焰冲击的垂直定向样本的火灾性能。本试验方法提供了适用于比较建筑应用中用作外墙外露表面的材料性能的数据。 注1: 本试验方法严格遵循加利福尼亚州执法官办公室（SFM）方法12-7A-1的试验程序。 2. 1.2 本试验方法测量了墙体系统在暴露条件下抵抗火灾从外部渗透到墙体空腔或试验组件未暴露侧的能力。 1.3 本试验方法提供的数据适用于比较外部建筑应用中垂直定向材料、产品或组件的性能。试样的厚度和配置应代表实际最终产品或系统用途。 1.4 第节列出了试验方法的局限性 5.5 . 1.5 裁判裁决中使用的单位制是国际单位制；看见 IEEE/ASTM SI-10 了解更多详细信息。括号中给出的单位仅供参考。 1.6 本标准用于测量和描述材料、产品或组件在受控条件下对热量和火焰的响应，但其本身并不包括在实际火灾条件下对材料、产品或组件进行火灾危险或火灾风险评估所需的所有因素。 1.7 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和健康实践，并确定监管限制的适用性。 1.8 火灾测试本身就很危险。在进行这些测试时，应采取适当的人员和财产保护措施。 ====意义和用途====== 5.1 本文所述的试验方法测量了外墙覆盖材料或系统在规定暴露条件下抵抗从外墙到墙体组件未暴露侧的火灾渗透的能力。 5.2 当这些细节代表端部结构时，应将组件的代表性接头和其他特征包括在试样中- 使用产品。 5.3 本试验方法适用于没有理想平面外表面的最终用途产品。 5.4 通过全彩摄影记录直观记录试样的整体性能。完整火灾试验的录像是摄影记录的可接受替代方案。测试壁未暴露侧的红外摄影可用于揭示温度升高或持续热点的发展。 5.5 在该程序中，样本经受一组特定的实验室火灾试验暴露条件。如果替换了不同的测试条件或预期的最终使用条件发生了变化，则不知道是否可以通过使用该测试来预测所测性能特性的变化。 因此，结果仅在本程序中描述的火灾试验暴露条件下严格有效。

1.1 This fire-test-response standard prescribes a method to assess the fire performance of a vertically oriented specimen exposed to direct flame impingement in a simulated external fire exposure potentially encountered in a ‘Wildland Urban Interface’ scenario. This test method provides data suitable for comparing the performance of materials, which are used as the exposed surfaces of exterior walls in construction applications. Note 1: This test method closely follows the test procedure of California Office of State Marshal (SFM) Method 12-7A-1. 2 1.2 This test method measures the ability of the wall system to resist fire penetration from the exterior into the wall cavity or unexposed side of the test assembly under the conditions of exposure. 1.3 This test method provides data suitable for comparing the performance of vertically oriented materials, products or assemblies in exterior construction applications. The test specimen shall be tested in thicknesses and configurations representative of actual end product or system uses. 1.4 Limitations of the test method are listed in Section 5.5 . 1.5 The system of units to be used in referee decisions is the SI system of units; see IEEE/ASTM SI-10 for further details. The units given in parentheses are for information only. 1.6 This standard is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions. 1.7 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 and health practices and determine the applicability of regulatory limitations prior to use. 1.8 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests. ====== Significance And Use ====== 5.1 The test method described herein measures the ability of the exterior wall covering material or system to resist fire penetration from the exterior to the unexposed side of the wall assembly under the specified conditions of exposure. 5.2 Representative joints and other characteristics of an assembly shall be included in a test specimen when these details are representative of the construction of the end-use product(s). 5.3 This test method is applicable to end-use product(s) not having an ideally planar external surface. 5.4 The overall performance of the test specimen is visually documented by full-color photographic records. Video taping of the complete fire test is an acceptable alternative to the photographic record. The use of infrared photography of the unexposed side of the test wall can be used to reveal development of increasing temperatures or persisting hot spots. 5.5 In this procedure, the specimens are subjected to a specific set of laboratory fire test exposure conditions. If different test conditions are substituted or the anticipated end-use conditions are changed, it is not known whether it is possible by use of this test to predict changes in the performance characteristics measured. Therefore, the results are strictly valid only for the fire test exposure conditions described in this procedure.