철도차량용 바닥재 연소가스 독성 비교

초록

Fire safety is indispensible in railway vehicle and all countries has regulated fire safety according to their standards. Among fire safety characteristics, toxicity of combustion gases is one of important items because it is directly related to human survival and health in fire situation. Generally railway vehicle is composed of various materials and thus its combustion, especially polymeric materials, produces huge toxic gases. Therefore, in this study, toxicity of combustion gases from polymeric flooring materials were investigated with colorimetric gas detector tubes and method of BS 6853 Annex B.2. The flooring materials used were commercial products based on SBR(Styrene Butadiene Rubber), NBR(Nitrile Butadien Rubber)-EPDM(Ethylene Propylene Diene Monomer) and Neoprene. To assess the effect of other constituents such as filler and fire retardants, smoke density (ASTM E662) of flooring materials were compared.