标准摘要
[中文适用范围]： 本技术规范适用于电工产品所用材料的扁平固体非金属样品。该方法不适用于绝缘电线和电缆等非扁平产品的测试，因为此类产品无法获得令人满意的热通量分布。该方法可能不适用于那些在热通量的直接冲击下熔化并流走并且不产生烟雾的材料，这代表了来自真实火灾情况的当前知识。本技术规范的目的是确定在某些特定的实验条件下，在封闭室（即没有换气的情况下）使用或不使用引燃火焰的情况下，垂直暴露于辐射热源的材料产生的烟雾的光密度。 ）。 [外文原描述]： Applicable to flat, solid non-metallic specimens of materials used in electrotechnical products. This method is not applicable to the testing of non-flat products such as insulated wires and cables, as it is not possible to obtain a satisfactory distribution of heat flux with such products. May not be applicable for materials which melt and flow away from the direct impingement of heat flux and do not give a smoke emission, which is representative of current knowledge from real fire situations. The purpose of this method is to determine, under specific experimental conditions, the optical density of smoke produced by materials exposed vertically to a radiant heat source with or without the application of a pilot flame in a closed chamber (i.e. without air-change). Has the status of a basic safety publication in accordance with IEC Guide 104.
英文名称Fire hazard testing - Part 6-31: Smoke obscuration - Small-scale static test - Materials