Comparison of two standard test methods for determining explosion limits of gases at atmospheric conditions

摘要

A comparison is made between two internationally accepted methods to determine the explosion limits of gases at atmospheric pressure and room temperature (20 l sphere -- DIN 5l649). Significant differences (about l vol./100) in the upper explosion limits (UEL) values are found for four hydrocarbons tested. A new criterion is proposed which leads to close agreement between the UEL values obtained by the two methods.