请注意:此版本的所有临时修订版将在您购买时提供。本试验方法描述了适用于使用标准化房间对室内饰面材料组件进行分类的试验程序和要求 火灾暴露。本试验方法用于评估暴露在早期空气中的墙体材料组件、天花板材料组件或两者的可燃性 特定室内冷杉暴露条件下的火灾增长。防火材料对其他可燃材料或部件的有效防护 本次评估主要关注的是大会内部。根据《表面可燃性试验标准》的规定，通过评估提供了与内饰材料表面可燃性特征有关的数据 建筑材料的燃烧特性，UL 723，如1.5所述。通过使用本试验方法获得的结果旨在用作选择和控制过程中使用的全部数据的一个元素 用于建筑施工的材料。特定用途建筑材料和组件的相关分类信息- 土地用途是根据 有规定的测试程序。分类类别如下:a）表面燃烧特性分类-通过测量火焰确定建筑材料和组件的比较燃烧特性 在暴露表面上蔓延，以及在火灾暴露期间产生的烟雾密度。本试验方法在试验方法标准中进行了描述 建筑材料的表面燃烧特性，UL 723。

Please note: All interim revisions for this edition available at time of your purchase will be included.This test method describes the testing procedures and requirements applicable to the classification of interior finish material assemblies by use of a standardized room fire exposure.This test method is intended for use in the evaluation of the flammability contribution of wall materia l assemblies, ceiling material assemblies, or both, exposed to early fire growth under specified room fir e exposure conditions. The effectivene ss of fire barrier materials as protection for other combustible materials or components within the assembly is of primary interest for this evaluation.Data with respect to surface flammability characteristics of interior finish materials is provided b y evaluations in accordance with the Standard for Test for Surface Burning Characteristics of Buildin g Materials, UL 723, as described in 1.5.The results obtained by use of this test method are intended to be used as one element of the total body of data used in the processes of selecting and controlling materials for use in building construction.Related classification information for building materials and assemblies intended for specific end-uses is promulgated under categorical designations in accordance with specified testing procedures. Thes e classification categories are as follows:a) Surface Burning Characteristics Classification -Establishes the comparative burnin g characteristics of building materia ls and assemblies by measurement of flame spread over exposed surfaces and the de nsity of the smoke developed during the fire exposure period. This test method is described in the Standard for Test for Surface Burning Characteristics of Building Materials, UL 723.