1.1 本火灾试验响应标准通过火灾传播装置（FPA）确定并量化了与支持火灾传播的材料倾向相关的材料易燃性特征。量化的材料易燃性特征包括点火时间( t ign公司 )，化学( Q ˙ 化学 )，和对流( Q ˙ c )热释放率、质量损失率( m ˙ )和有效燃烧热（EHC）。 1.2 本文包括以下能够单独进行的试验方法: 1.2.1 点火试验， 确定 t ign公司 对于水平试样； 1.2.2 燃烧试验， 确定 Q ˙ 化学 , Q ˙ c , m ˙ 水平试样燃烧产生的EHC；和 1.2.3 火灾蔓延试验， 确定 Q ˙ 化学 垂直试样的燃烧。 1.3 FPA的显著特点包括钨石英外部隔离加热器，可提供高达110 kW/m的辐射通量 2. 对于试样，无论表面退化或膨胀，其保持不变；规定在规定的正常空气流中燃烧或向上蔓延，空气浓度高达40 % 氧气、空气-氧气污染、纯氮或气体抑制剂与前述空气混合物的混合物；并且，在垂直试样上测量火灾向上传播期间产生的热释放速率和排气产物流的能力为0。 305米高。 1.4 FPA用于评估材料和产品的易燃性。它还旨在获得此类材料和产品在指定惰性或氧化环境中对规定热通量的瞬态响应，并获得燃烧产物（CO）生成速率的实验室测量值 2. ，CO和气态碳氢化合物（如果需要），用于消防安全工程。 1.5 在相对于试样表面的规定位置，通过引燃火焰点燃试样。 1.6 垂直试样的火蔓延试验不适用于加热时充分熔化以形成液池的材料。 1.7 所述数值采用国际单位制。括号中的值仅供参考。 1.8 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。 1.9 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。 有关具体的危险说明，请参阅第节 7. . 1.10 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 这些测试方法是电缆火灾传播和洁净室材料易燃性现有测试标准的组成部分，也是输送机皮带的批准标准的组成部分 ( 1- 3. ) . 3. 参考文献 ( 1- 3. ) 使用这些测试方法是因为火灾- 从测试方法中获得的测试响应结果与实际火灾传播测试期间的火灾行为相关，如中所述 X1.4 . 5.2 点火、燃烧或火焰传播试验方法或其组合已使用包含多种聚合物组合物和结构的材料和产品进行，如中所述 X1.7 . 5.3 火灾蔓延试验方法不同于中列出的ASTM标准中的试验方法 2.1 通过对垂直试样在正常空气中向上火焰传播和燃烧期间的化学热释放速率进行实验室测量，氧气- 富氧空气或含氧空气中。其他标准的测试方法，例如测试方法 E1321 ，在材料和试验方法上的横向/水平或向下火焰传播期间进行测量 E906 , E1354 和 E1623 它可以测量完全参与燃烧的材料的热释放速率，通常使用外部辐射通量而不是燃烧材料本身的火焰来表征火灾行为。 5.4 这些试验方法不是常规质量控制试验。它们用于评估材料的特定易燃特性。待分析材料由一端的试样组成- 使用产品或最终使用产品中使用的各种组件。实验室程序的结果为火灾传播和火灾增长模型、风险分析研究、建筑和产品设计以及材料研究和开发提供了输入。

1.1 This fire-test-response standard determines and quantifies material flammability characteristics, related to the propensity of materials to support fire propagation, by means of a fire propagation apparatus (FPA). Material flammability characteristics that are quantified include time to ignition ( t ign ), chemical ( Q ˙ chem ), and convective ( Q ˙ c ) heat release rates, mass loss rate ( m ˙ ) and effective heat of combustion (EHC). 1.2 The following test methods, capable of being performed separately and independently, are included herein: 1.2.1 Ignition Test, to determine t ign for a horizontal specimen; 1.2.2 Combustion Test, to determine Q ˙ chem , Q ˙ c , m ˙ , and EHC from burning of a horizontal specimen; and, 1.2.3 Fire Propagation Test, to determine Q ˙ chem from burning of a vertical specimen. 1.3 Distinguishing features of the FPA include tungsten-quartz external, isolated heaters to provide a radiant flux of up to 110 kW/m 2 to the test specimen, which remains constant whether the surface regresses or expands; provision for combustion or upward fire propagation in prescribed flows of normal air, air enriched with up to 40 % oxygen, air oxygen vitiated, pure nitrogen or mixtures of gaseous suppression agents with the preceding air mixtures; and, the capability of measuring heat release rates and exhaust product flows generated during upward fire propagation on a vertical test specimen 0.305 m high. 1.4 The FPA is used to evaluate the flammability of materials and products. It is also designed to obtain the transient response of such materials and products to prescribed heat fluxes in specified inert or oxidizing environments and to obtain laboratory measurements of generation rates of fire products (CO 2 , CO, and, if desired, gaseous hydrocarbons) for use in fire safety engineering. 1.5 Ignition of the specimen is by means of a pilot flame at a prescribed location with respect to the specimen surface. 1.6 The Fire Propagation test of vertical specimens is not suitable for materials that, on heating, melt sufficiently to form a liquid pool. 1.7 Values stated are in SI units. Values in parentheses are for information only. 1.8 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. 1.9 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. For specific hazard statements, see Section 7 . 1.10 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 These test methods are an integral part of existing test standards for cable fire propagation and clean room material flammability, as well as, in an approval standard for conveyor belting ( 1- 3 ) . 3 Refs ( 1- 3 ) use these test methods because fire-test-response results obtained from the test methods correlate with fire behavior during real-scale fire propagation tests, as discussed in X1.4 . 5.2 The Ignition, Combustion, or Fire Propagation test method, or a combination thereof, have been performed with materials and products containing a wide range of polymer compositions and structures, as described in X1.7 . 5.3 The Fire Propagation test method is different from the test methods in the ASTM standards listed in 2.1 by virtue of producing laboratory measurements of the chemical heat release rate during upward fire propagation and burning on a vertical test specimen in normal air, oxygen-enriched air, or in oxygen-vitiated air. Test methods from other standards, for example, Test Method E1321 , which yields measurements during lateral/horizontal or downward flame spread on materials and Test Methods E906 , E1354 , and E1623 , which yield measurements of the rate of heat release from materials fully involved in flaming combustion, generally use an external radiant flux, rather than the flames from the burning material itself, to characterize fire behavior. 5.4 These test methods are not intended to be routine quality control tests. They are intended for evaluation of specific flammability characteristics of materials. Materials to be analyzed consist of specimens from an end-use product or the various components used in the end-use product. Results from the laboratory procedures provide input to fire propagation and fire growth models, risk analysis studies, building and product designs, and materials research and development.