Environmental Testing of Escape Breathing Apparatus 820876

A new generation of 60-minute self-contained breathing apparatus was being introduced into the underground coal mining industry for use as respiratory protection during fires and mine disasters. Little field experience existed from which to predict the survivability of this new life-support equipment. A series of environmental tests was proposed consisting of exposure to heat, cold, shock, and vibration. Treated and untreated apparatus were evaluated and compared by use on human subjects and a mechanical breathing simulator. Results are reported. After field data has been collected, information may be able to be correlated with environmental testing and used as a predictor of survivability.


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