对火反应试验.火焰传播.第2部分:在垂竖直建筑结构上火焰侧向传播

[中文适用范围]： ISO 5658 的这一部分规定了一种测试方法，用于测量火焰沿垂直位置的产品样本表面的横向蔓延。 它提供的数据适用于比较基本平坦的材料、复合材料或组件的性能，这些材料、复合材料或组件主要用作建筑物和运输车辆（例如船舶和火车）的墙壁暴露表面。 一些异形产品（如管道）也可以在规定的安装和固定条件下进行测试。 ISO 5658 的这一部分适用于在受控实验室条件下，在引燃火焰存在的情况下，测量和描述材料、产品或组件对辐射热的响应特性。 它不适合单独用来描述或评价材料、产品或组件在实际火灾条件下的火灾危险或火灾风险。 [外文原描述]： ISO 5658-2:2006 specifies a method of test for measuring the lateral spread of flame along the surface of a specimen of a product orientated in the vertical position. ISO 5658-2:2006 provides data suitable for comparing the performance of essentially flat materials, composites or assemblies that are used primarily as the exposed surfaces of walls in buildings and transport vehicles, such as ships and trains. Some profiled products (such as pipes) can also be tested under specified mounting and fixing conditions. ISO 5658-2:2006 is applicable to the measurement and description of the properties of materials, products or assemblies in response to radiative heat in the presence of a pilot flame under controlled laboratory conditions. ISO 5658-2:2006 is not suitable to be used alone to describe or appraise the fire hazard or fire risk of materials, products or assemblies under actual fire conditions.