標準號：IEC 60695-6-31-1999
中文標準名稱：著火危險試驗.第6-31部分:煙霧模糊.小范圍靜態試驗.材料
英文標準名稱：Fire hazard testing - Part 6-31: Smoke obscuration - Small-scale static test - Materials
標準類型：L04;K04
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：L04;K04
國際標準分類號：13.220.40;29.020
適用范圍：This technical specification is 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.This method 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 technical specification is to determine, under certain 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).