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Results 141 - 150 of 255
5/1/2001 - Conference papersThis paper covers the development of NIOSH's modified direct method to measure the gas content of coal samples.
5/1/2001 - Technology NewsNIOSH tech news report on an incident where CO generated from blasting at a strip mine migrated through the ground into a nearby home, poisoning the occupants.
2/1/2001 - Conference papersPast studies with blowing face ventilation systems have shown that using a machine-mounted scrubber and water sprays can reduced methane levels at the face.
1/1/2001 - Conference papersThis paper provides a brief overview of the ongoing study to evaluate the use of these chambers for pressure loading of full-scale seal designs using compressed air, water, or internal gas explosions.
1/1/2001 - Conference papersThe importance of controlling respirable dust and methane gas levels in underground coal mining cannot be underestimated. While respirable dust can significantly affect the occupational health of underground coal miner, methane gas accumulations pose s...
7/1/2000 - Peer reviewed journal articlesBecause of the need to provide short-term or real-time estimates of worker respirable dust exposure, porous foam may be a viable classification media for a low flow rate, disposable respirable dust sampler for use in the coal mining industry.
5/1/2000 - Peer reviewed journal articlesAn experimental program was conducted to evaluate the accuracy of some current methods for predicting the flammability of gas mixtures containing hydrogen and flammable or nonflammable volatile organic compounds (VOCs) in air.
5/1/2000 - Peer reviewed journal articlesThis paper reports the results of flammability studies for methane, propane, hydrogen, and deuterium gases in air conducted by the Pittsburgh Research Laboratory.
2/1/2000 - Conference papersStudy of toxic fumes produced by the detonation of various ammonium nitrate/fuel oil (ANFO) mixtures and several cap-sensitive explosives.
10/1/1999 - Reports of InvestigationsA performance comparison of 14 rescue breathing apparatus was undertaken as an assessment of past and present worldwide technology. Rescue breathing apparatus are self-contained, closed-circuit breathing apparatus used for entry into areas having atmosp...