1.1 该火灾测试响应测试方法评估材料、产品和组件对外部点火器控制的热通量水平的响应。 1.2 本试验方法确定的火灾试验响应特性包括材料、产品和组件在良好通风条件下的可燃性和燃烧时间。 1.3 热量、烟雾和质量损失率不在本试验方法的范围内，但由试验方法解决 1623年 . 1.3.1 本试验方法使用与试验方法中所述相同的燃烧器 1623年 描述了两种燃烧器类型（燃烧器A和燃烧器B）。 1.4 试样暴露于高达50 千瓦/米 2. 在垂直方向上。热线用于点燃试样中的可燃蒸汽。 1.5 本测试方法是为材料、产品或组件的评估、设计、研发或代码合规而开发的。试样应按代表实际最终产品或系统用途的厚度和配置进行测试。 1.6 测试方法的限制列于 5.7 . 1.7 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和火焰的响应，但其本身并未包含实际火灾条件下材料、产品和组件火灾危险或火灾风险评估所需的所有因素。 1.8 火灾测试本质上是危险的。在进行这些试验时，应对人员和财产采取适当的保护措施。 1.9 以国际单位制表示的值应视为标准值。 1.10 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建立适当的安全、健康和环境实践，并确定监管限制的适用性。 第节给出了有关危险的具体信息 7. . 1.11 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《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 本试验方法主要用于确定材料、产品和组件的烧穿时间和点火时间。 5.2 当这些细节是正常设计的一部分时，组件的代表性接头和其他特征应包含在样本中。 5.3 该测试方法适用于没有理想平面外表面的最终用途产品。应将热通量调整为表面与辐射板平均距离所需的热通量。 5.4 在该程序中，试样要经受一组或多组特定的实验室测试条件。如果替代了不同的测试条件或改变了最终使用条件，则不可能通过本测试或通过本测试预测所测量的火灾测试响应特性的变化。因此，结果仅适用于本程序中描述的火灾试验暴露条件。 5. 5. 当这些细节是正常设计的一部分时，试样中应包含代表性材料和厚度。 5.6 该方法也可用于研究和开发各种材料类型，以纳入更大规模的火灾试验组件（例如，试验方法 第119页 ). 5.7 测试限制: 5.7.1 如果:( 一 )试样充分熔化，溢出滴水盘，或( b )发生爆炸性剥落。 5.7.2 报告下垂、变形或分层试样的观察结果。

1.1 This fire-test-response test method assesses the response of materials, products, and assemblies to controlled levels of heat flux with an external igniter. 1.2 The fire-test-response characteristics determined by this test method include the ignitability and time to burn-through of materials, products, and assemblies under well ventilated conditions. 1.3 Heat, smoke, and mass loss rate are not within the scope of this test method, but are addressed by Test Method E1623 . 1.3.1 This test method uses the same burner as that described in Test Method E1623 . Two burner types are described (Burner A and Burner B). 1.4 Specimens are exposed to a constant heat flux up to 50 kW/m 2 in a vertical orientation. Hot wires are used to ignite the combustible vapors from the specimen. 1.5 This test method has been developed for evaluations, design, or research and development of materials, products, or assemblies, or for code compliance. The specimen shall be tested in thicknesses and configurations representative of actual end product or system uses. 1.6 Limitations of the test method are listed in 5.7 . 1.7 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 fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions. 1.8 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests. 1.9 The values stated in SI units are to be regarded as standard. 1.10 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. Specific information about hazards is given in Section 7 . 1.11 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 used primarily to determine the time to burn-through and the time to ignition of materials, products, and assemblies. 5.2 Representative joints and other characteristics of an assembly shall be included in a specimen when these details are part of normal design. 5.3 This test method is applicable to end-use products not having an ideally planar external surface. The heat flux shall be adjusted to be that which is desired at the average distance of the surface from the radiant panel. 5.4 In this procedure, the specimens are subjected to one or more specific sets of laboratory test conditions. If different test conditions are substituted or the end-use conditions are changed, it is not always possible by or from this test to predict changes in the fire-test-response characteristics measured. Therefore, the results are valid only for the fire test exposure conditions described in this procedure. 5.5 Representative materials and thicknesses shall be included in a specimen when these details are part of normal design. 5.6 This method can also be used for research and development of various material types to be included in larger-scale fire test assemblies (for example, Test Methods E119 ). 5.7 Test Limitations: 5.7.1 The test results have limited validity if: ( a ) the specimen melts sufficiently to overflow the drip tray, or ( b ) explosive spalling occurs. 5.7.2 Report observations of specimens that sag, deform, or delaminate.