Respiratory responses of coal miners for use with mechanical simulators.
Bernard-TE; Kamon-E; Stein-RL
Am Ind Hyg Assoc J 1978 May; 39(5):425-429
In order to specify the respiratory parameters for mechanical breathing simulators used in mine escape and rescue activities, the respiratory responses of 44 coal miners were tested under simulated conditions. Sixteen men were studied at subnormal levels of activity, including shovelling, arm cranking, walking, and carrying a 14kg cement block. Twenty-eight men were subjected to a stress test to evaluate fitness. Relationships of pulmonary ventilation to oxygen uptake, respiratory frequency, tidal volume and carbon- dioxide elimination were determined. The rate of oxygen consumption was selected as the independent variable with which to compare the other variables. These relationships were then used to set the respiratory parameters on the simulators. This procedure is valid for both closed circuit and open circuit devices as well as air purifying respirators.
Safety-measures; Safety-practices; Escape-systems; Respiratory-protective-equipment; Personal-protective-equipment; Coal-workers; Air-quality-measurement; Mining-industry; Coal-miners; Coal-mining; Respiratory-function-tests; Lung-function
American Industrial Hygiene Association Journal