1.1 本耐火试验响应标准的目的是评估产品在评估30分钟时限制火焰表面传播的能力。本耐火试验响应标准使用试验方法的装置和程序 E84 总测试时间延长至30分钟。 1.2 影响火灾和生命安全的建筑应用通常需要具有特定火焰表面传播标准和火焰传播指数的产品。本火灾试验响应标准分类条件中包含的最终性能特征旨在用于监管目的，以确定在需要显著降低表面燃烧特性的特定条件下，用于建筑物的材料或产品的适用性。 1.3 超出试验方法范围的材料和产品 E84 不在本标准范围内。 1.4 熔化、滴落或分层导致火焰前锋连续性受损的材料或产品不在本标准范围内。 注1: 对熔化、滴落或分层到破坏火焰前沿连续性的程度的材料进行测试，会导致火焰传播指数较低，与通过测试保持在原位的材料获得的指数没有直接关系。与测试期间材料或产品保持在原位的火焰传播结果相比，熔化、滴落或分层或无法支撑自身重量的材料或产品有可能证明火焰传播结果减少。 1.5 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.6 本标准的文本引用了提供解释信息的注释和脚注。这些注释和脚注（不包括表格和图表）不应视为本标准的要求。 1.7 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 1.8 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。 1.9 防火测试本身就很危险。在进行这些测试时，应采取适当的人员和财产保护措施。 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 本标准有助于在实验室条件下建立30分钟试验期内材料或产品的相对表面燃烧特性。 5.2 分类条件中的性能特征拟用于建筑规范或其他监管要求或规范要求的特定应用中。 5.3 本试验方法不提供通过被测表面的传热测量。 5.4 本试验方法不通过本标准试验的结果或火焰传播指数本身，将材料或产品分类或定义为不燃材料或产品。

1.1 The purpose of this fire-test-response standard is to evaluate the ability of a product to limit the surface spread of flame when evaluated for 30 min. This fire-test-response standard uses the apparatus and procedure of Test Method E84 with the total test period extended to 30 min. 1.2 Building applications affecting fire and life safety often require products with specific criteria for surface spread of flame and flame spread index. The resulting performance characteristics included in the conditions of classification for this fire-test-response standard are intended to be used for regulatory purposes to determine the suitability of materials or products for use in buildings under specified conditions where significantly reduced surface burning characteristics are required. 1.3 Materials and products that are beyond the scope of Test Method E84 are beyond the scope of this standard. 1.4 Materials or products which melt, drip or delaminate to the extent that the continuity of the flame front is destroyed are beyond the scope of this standard. Note 1: Testing of materials that melt, drip, or delaminate to such a degree that the continuity of the flame-front is destroyed, results in low flame spread indices that do not relate directly to indices obtained by testing materials that remain in place. Materials or products that melt, drip, or delaminate, or that cannot support their own weight, have the potential for demonstrating reduced flame spread results as compared to the flame spread results where the materials or products remain in place during testing. 1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.6 The text of this standard references notes and footnotes that provide explanatory information. These notes and footnotes, excluding tables and figures, shall not be considered as requirements of the standard. 1.7 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 1.8 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. 1.9 Fire testing is inherently hazardous. Adequate safeguards for personnel and property shall be employed in conducting these tests. 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 This standard is useful to establish the relative surface burning characteristics of materials or products under laboratory conditions for a 30 min test period. 5.2 The performance characteristics in the conditions of classification are intended to be used in specific applications as required by building codes or other regulatory requirements or specifications. 5.3 This test method does not provide the measurement of heat transmission through the tested surface. 5.4 This test method does not provide the classification or definition of a material or product as noncombustible, by means of the results from this standard test or flame spread index by itself.