Toxic Gas Evaluation Method Using Cone Calorimeter with Gas Analysis

Abstract

Fires on railway rolling stock potentially cause not only injury passengers and crew but also damage the rolling stock equipment. It is important to evaluate the performance of materials against fire. Heretofore, the time-dependent production of smoke and toxic gases relating to combustion behavior has not been considered. Moreover, quantitative understanding of combustion behavior is important. From these backgrounds, Railway Technical Research Institute designed and fabricated a new combustion test device that can simultaneously measure time-dependent changes of combustion phenomena through combustion tests. On the other hand, it is necessary to compare the conventional index of toxicity (CIT_G) between EN standards and new combustion test device. Therefore, obtained from respective tests was compared with use of same materials for railway rolling stock.