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Smoke, Carbon Monoxide, and Hydrogen Chloride Production from the Pyrolysis of Conveyor Belting and Brattice Cloth1/1/1992 - Information CircularsAn investigation of the combustion products of typical materials found in underground mines. The results are combined with previous analyses to estimate relative toxicities, product levels and detectability of smoldering mine combustibles.
1/1/1990 - Information CircularsThe U.S. Bureau of Mines evaluated product-of-combustion characteristics of combustible materials used in coal mining in experiments conducted in an intermediate-scale fire tunnel, and evaluated each material's effectiveness for mine fire detection.
1/1/1987 - Information CircularsOutbursts are sudden and violent releases of gas and coal that result from a complex function of geology, stress regime, and gas pressure and content. The Bureau of Mines has reviewed methods for prediction and mitigation of such outbursts in use worldw...
1/1/1986 - Information CircularsThe Bureau of Mines used sulfur hexafluoride (sf6) tracer gas to evaluate the effectiveness of gob ventilation and/or sealing practices at three coal mines, each having different problems associated with their mined-out areas.