Determination of Relative Flammability of Materials by Pyrolysis and Gas-Chromatographic Light Hydrocarbon Analysis

摘要

The author performed a series of tests to study the production of extremely flammable light hydrocarbon gases that are produced early in the degradation phase of many materials. Their tests consisted of three steps: to perform thermogravimetric analysis on a representative sample to determine its thermal history, to pyrolyze a sample portion of the material to collect the resulting degradation smoke, and then to perform gas chromatographic analysis on the gases collected in the trap. They found that if a material produces a high concentration of methane, propane, and acetylene, and has a high ratio of acetylene to both methane and propane, the material has a relatively high flammability. 3 figs. (ERA citation 13:040595)