1.1 本火灾试验响应标准提供了一个程序，用于测量暴露于受控水平的辐射加热（无论有无外部点火器）时释放低水平热量的材料的响应。 1.2 本试验方法与试验方法不同 第1354页 因为它规定了不同的特定试样尺寸、试样夹持器、试样方向、集气室和锥形加热器组件顶板之间的直接连接，以确保完全收集所有燃烧气体( 图1 )和通过耗氧量热法进行分析的较低体积流速。 它适用于仅含有少量可燃成分或成分的材料和产品，如峰值热释放小于200的试样 千瓦/米 2. 总热释放<15 兆焦耳/米 2. . 注1: PMMA通常用于检查锥形量热计的一般操作。PMMA不应与本标准一起使用，因为热释放率太高。 1.3 热释放速率通过测量由排气产物流中的氧浓度和流速确定的氧消耗来确定。通过同时测量试样质量损失率和热释放率来确定有效燃烧热。 烟雾发展（可选测量）通过燃烧产物流对光线的遮蔽来测量。 1.4 试样应暴露于锥形辐射加热器产生的初始测试热通量。使用外部点火时，应使用电火花。试样测试方向为水平方向，与最终用途应用是水平方向还是垂直方向无关。 1.5 可燃性通过测量从初始暴露到持续燃烧的时间来确定。 1.6 本测试方法已开发用于材料和产品评估、数学建模、设计目的以及开发和研究。 材料试样的示例包括最终使用产品的部分或最终使用产品中使用的各种部件。 1.7 以国际单位制表示的值应视为标准值。本标准不包括其他测量单位。 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、产品和组件的火灾危险或火灾风险评估所需的所有因素。 1.9 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。 1.10 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。有关具体危险说明，请参阅第节 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 该测试方法主要用于确定火灾中产生的热量，或导致火灾的热量，火灾所涉及的材料或产品释放的热量较低。本试验方法的推荐用途是在前20分钟内测得的总热释放率小于10 MJ的材料 最小测试周期，且峰值热释放率不超过200 千瓦/米 2. 持续时间超过10 s、 还包括有效燃烧热、质量损失率、持续燃烧时间和（可选）烟雾产生的测定。 这些特性是在代表预期最终用途的小尺寸试样上确定的。 5.2 该测试方法适用于各种类型的产品，不限于代表单一火灾场景。 5.3 本试验方法不适用于没有平面或接近平面外表面的最终用途产品。

1.1 This fire-test-response standard provides a procedure for measuring the response of materials that emit low levels of heat release when exposed to controlled levels of radiant heating with or without an external igniter. 1.2 This test method differs from Test Method E1354 in that it prescribes a different specific test specimen size, specimen holder, test specimen orientation, a direct connection between the plenum and the top plate of the cone heater assembly to ensure complete collection of all the combustion gases ( Fig. 1 ), and a lower volumetric flow rate for analyses via oxygen consumption calorimetry. It is intended for use on materials and products that contain only small amounts of combustible ingredients or components, such as test specimens that yield a peak heat release of <200 kW/m 2 and total heat release of <15 MJ/m 2 . Note 1: PMMA is typically used to check the general operation of a Cone Calorimeter. PMMA should not be used with this standard as the heat release rate is too high. 1.3 The rate of heat release is determined by measurement of the oxygen consumption as determined by the oxygen concentration and the flow rate in the exhaust product stream. The effective heat of combustion is determined from a concomitant measurement of test specimen mass loss rate, in combination with the heat release rate. Smoke development (an optional measurement) is measured by obscuration of light by the combustion product stream. 1.4 Test specimens shall be exposed to initial test heat fluxes generated by a conical radiant heater. External ignition, when used, shall be by electric spark. The test specimen testing orientation is horizontal, independent of whether the end-use application involves a horizontal or a vertical orientation. 1.5 Ignitability is determined as a measurement of time from initial exposure to time of sustained flaming. 1.6 This test method has been developed for use for material and product evaluations, mathematical modeling, design purposes, and development and research. Examples of material test specimens include portions of an end-use product or the various components used in the end-use product. 1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests. 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. For specific hazard statements, see 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 heat evolved in, or contributed to, a fire involving materials or products that emit low levels of heat release. The recommended use for this test method is for materials with a total heat release rate measured of less than 10 MJ over the first 20 min test period, and which do not give peak heat release rates of more than 200 kW/m 2 for periods extending more than 10 s. Also included is a determination of the effective heat of combustion, mass loss rate, the time to sustained flaming, and (optionally) smoke production. These properties are determined on small size test specimens that are representative of those in the intended end use. 5.2 This test method is applicable to various categories of products and is not limited to representing a single fire scenario. 5.3 This test method is not applicable to end-use products that do not have planar, or nearly planar, external surfaces.