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Results 61 - 70 of 89
9/1/2001 - Book chaptersA summary of aerosol measurement technology currently used in the U.S. mining industry as it relates to regulation, research and personal exposure monitoring.
5/1/2001 - Conference papersThis paper covers the development of NIOSH's modified direct method to measure the gas content of coal samples.
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 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...
Prediction of Longwall Methane Emissions: An Evaluation of the Influence of Mining Practices on Gas Emissions and Methane Control Systems10/1/1999 - Reports of InvestigationsAn analysis of the consequences of increasing longwall panel dimensions, particularly face width, in gassy coalbeds. Continuous longwall face emission monitoring studies were conducted at two adjacent mines operating in the Pocahontas No. 3 Coalbed, whe...
8/1/1999 - Information CircularsIn this report, recommendations are made to (1) replace the present regulations for certification of closed-circuit breathing apparatus with quantitative tests specifying metabolic work rate rather than activity, (2) continuously monitor relevant physio...
In-depth Survey Report: Control Technology for Environmental Enclosures - The Effect of Wind Speed Upon Aerosol Penetration Into an Enclosure at Clean Air Filter, Defiance, IA2/1/1999 - NIOSH/USBM numbered publicationsThe effect of wind speed upon aerosol penetration into an idealized enclosure was studied.
1/1/1997 - Conference papersTraditional techniques to experimentally determine toxic fumes produced by detonating high explosives are not applicable to blasting agents. To detonate properly, blasting agents require confinement, a significant booster, and other parameters.