1.1 该试验方法评估了横跨地板组件交叉点的拱肩面板组件的火灾试验响应特性。 1.2 该试验方法用于评估拱肩面板组件通过建筑物外部的火灾蔓延阻止火灾蔓延到房间内部或其正上方楼层的能力，并根据涉及特定材料、产品、，或组件。 1.3 本试验评估多层建筑中安装在垂直相邻窗户开口之间的外墙部分的性能。 1.4 该测试方法解决了火灾蔓延到火灾发生房间正上方单层的可能性。 1.5 该试验方法模拟了通过窗户向外部通风的隔间在闪络后条件下的火灾。 1.6 试验室内的火灾暴露条件是本试验方法规定的暴露前30分钟的条件，然后符合试验方法 E119 测试剩余时间的时间-温度曲线。试样外表面上的火灾暴露包括从试验室窗户和外部燃烧器排出的火焰羽流的暴露，尽管试验组件外表面的火灾暴露并不等同于试验方法的火灾暴露 E119 。 1.7 本试验方法规定了建筑物拱肩面板组件的加热条件、试验方法和评估标准。试样未使用任何超强轴向载荷进行试验。 1.8 试验结果确定了拱肩面板组件在火灾暴露期间的性能，不应被视为确定了拱腹面板组件在暴露后的适用性。 1.9 该试验方法没有提供与烟雾或气体泄漏率或两者相关的拱肩面板组件的定量信息。 1.9.1 本试验方法不评估地板组件和外墙组件之间的周边接缝保护的火灾试验响应特性。这包含在测试方法中 E2307 。 1.10 本试验方法不评估安装在包含可燃部件的外部非承重墙组件上或内部的材料的火灾试验响应特性或火灾传播倾向。NFPA 285对此进行了说明。 1.11 以英寸磅为单位的数值应视为标准。如有提供，括号中给出的SI值仅供参考。 1.12 本测试方法的文本引用了提供解释材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应被视为本标准的要求。 1.13 本试验方法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、产品和组件进行火灾危险或火灾风险评估所需的所有因素。 1.14 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.15 火灾测试具有内在的危险性。在进行这些试验时，应为人员和财产提供足够的保护。 1.16 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 此测试方法提供以下测量和评估: 5.1.1 拱肩面板组件抵抗足以点燃棉垫的火焰或热气通过的能力，或观察者可见的能力。 5.1.2 使用热通量和未暴露表面温度测量，通过拱肩面板组件及以上的热量传输。 5.2 此测试方法不提供以下内容: 5.2.1 本试验方法不评估包含可燃部件的外部非承重墙组件的火灾传播特性，也不评估测试组件上的火焰传播特性。 5.2.2 该试验方法不评估地板组件和外墙组件之间的周边接缝保护的火灾试验响应特性。这包含在测试方法中 E2307 。 5.2.3 评估拱肩面板组件通过产生烟雾、有毒气体或其他燃烧产物对火灾危害的程度， 5.2.4 测量烟雾或燃烧产物通过拱肩面板组件的控制或限制程度， 5.2.5 测量拱肩面板组件或外墙组件表面上的火焰蔓延， 5.2.6 试样在实际使用条件下的耐久性，包括循环温度的影响， 5.2.7 通过该试验方法确定的荷载（例如，风、地震等）对拱肩面板组件的影响， 5.2.8 试样的移动能力， 5.2.9 试样的其他特性，如耐磨性、耐化学性、空气渗透性、水密性等，以及 5.2.10 火焰从火源隔间侧向蔓延至相邻空间。 5.3 在该试验方法中，试样要经受一个或多个特定的试验条件。当替代不同的试验条件或改变最终使用条件时，这种试验方法并不总是能够预测测量特性的变化。 5.4 本试验方法并非用于选择拱肩面板组件的唯一试验方法。它并不是为了在特定应用中使用拱肩面板组件或其任何单独组件所需的所有属性的规范。

1.1 This test method evaluates the fire-test response characteristics of a spandrel-panel assembly spanning the intersection of a floor assembly. 1.2 This test method is used to assess the spandrel-panel assembly’s ability to impede spread of fire to the interior of the room or the story immediately above it via fire spread from the exterior of a building, and provide a quantitative measure of the fire hazard in terms of an I-Rating, T-Rating, and F-Rating from a specified set of fire conditions involving specific materials, products, or assemblies. 1.3 This test evaluates the performance of the portions of the exterior wall installed between vertically adjacent window openings in multi-story buildings. 1.4 This test method addresses the potential for fire spread to a single story immediately above the room of fire origin. 1.5 The test method simulates a fire in a post-flashover condition in a compartment that is venting to the exterior through a window opening. 1.6 The fire exposure conditions within the test room are those specified by this test method for the first 30 min of exposure and then conform to Test Methods E119 time-temperature curve for the remainder of the test. The fire exposure on the exterior surface of the test specimen comprises both the exposure from the fire plume exiting the window opening of the test room and the exterior burner, although the fire exposure on the exterior surface of the test assembly is not equivalent to that of Test Methods E119 . 1.7 This test method specifies the heating conditions, methods of test, and criteria for evaluation of a building’s spandrel-panel assembly. Specimens are not tested using any super-imposed axial load. 1.8 Test results establish the performance of the spandrel-panel assembly during the fire-exposure period and shall not be construed as having determined the suitability of a spandrel-panel assembly for use after that exposure. 1.9 This test method does not provide quantitative information about the spandrel-panel assembly relative to the rate of leakage of smoke or gases, or both. 1.9.1 This test method does not evaluate the fire-test-response characteristics of perimeter joint protection between the floor assembly and the exterior wall assembly. This is covered in Test Method E2307 . 1.10 This test method does not evaluate the fire-test-response characteristics or fire propagation propensity of material installed on, or within, exterior non-load-bearing wall assemblies containing combustible components. This is covered in NFPA 285. 1.11 The values stated in inch-pound units are to be regarded as the standard. Where provided, the SI values given in parentheses are for information only. 1.12 The text of this test method references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.13 This test method 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 the fire-hazard or fire-risk assessment of the materials, products, or assemblies under actual fire conditions. 1.14 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. 1.15 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests. 1.16 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 provides for the following measurements and evaluations: 5.1.1 Ability of the spandrel-panel assembly to resist the passage of flames or hot gases sufficient to ignite a cotton pad, or be visible to an observer. 5.1.2 Transmission of heat through, and above, the spandrel-panel assembly using heat flux and unexposed surface temperature measurements. 5.2 This test method does not provide the following: 5.2.1 This test method does not evaluate the fire propagation characteristics of exterior nonload-bearing wall assemblies containing combustible components, or flame spread over the test assembly. 5.2.2 This test method does not evaluate the fire-test-response characteristics of the perimeter joint protection between the floor assembly and the exterior wall assembly. This is covered in Test Method E2307 . 5.2.3 Evaluation of the degree to which the spandrel-panel assembly contributes to the fire hazard by generation of smoke, toxic gases, or other products of combustion, 5.2.4 Measurement of the degree of control or limitation of the passage of smoke or products of combustion through the spandrel-panel assembly, 5.2.5 Measurement of flame spread over the surface of the spandrel-panel assembly or exterior wall assembly, 5.2.6 Durability of the test specimen under actual service conditions, including the effects of cycled temperature, 5.2.7 Effects of loads (for example, wind, seismic, etc.) on the spandrel-panel assembly established by this test method, 5.2.8 Movement capabilities of the test specimen, 5.2.9 Other attributes of the test specimen, such as wear resistance, chemical resistance, air infiltration, water-tightness, and so forth, and 5.2.10 Lateral spread of flame from the compartment of fire origin to adjacent spaces. 5.3 In this test method, the test specimens are subjected to one or more specific test conditions. When different test conditions are substituted or the end-use conditions are changed, it is not always possible by, or from, this test method to predict changes to the characteristics measured. 5.4 This test method is not intended to be used as the only test method in the selection of a spandrel-panel assembly. It is not intended as a specification for all attributes required by a spandrel-panel assembly, or any of its individual components, in order for a spandrel-panel assembly to be used in a particular application.