Results 21 - 30 of 344

• Relationship Between Elemental Carbon, Total Carbon, and Diesel Particulate Matter in Several Underground Metal/nonmetal Mines
  2/1/2007 - Peer reviewed journal articles
  To evaluate how elemental carbon (EC), a surrogate of diesel particulate matter (DPM), predicts DPM, measurements of total carbon (TC) and EC were taken away from potential interferences in four underground metal/nonmetal mines during production.
• Laboratory and Field Performance of a Continuously Measuring Personal Respirable Dust Monitor
  9/1/2006 - Reports of Investigations
  This report includes the theory of operation, description, and the performance of the Personal Dust Monitor (PDM) compared to gravimetric-based reference dust sampling methods and laboratory verification of the instruments accuracy.
• Coal Dust Particle Size Survey of U.S. Mines
  8/1/2006 - Conference papers
  NIOSH and MSHA conducted a joint survey to determine the range of coal particle sizes found in dust samples collected from intake airways of U.S. coal mines.
• Effectiveness of Selected Diesel Particulate Matter Control Technologies for Underground Mining Applications: Isolated Zone Study, 2004
  8/1/2006 - Reports of Investigations
  This study evaluated the effectiveness of the state-of-the-art technologies for controlling DPM and gaseous emissions from underground diesel-powered mining equipment using the isolated zone approach.
• Effectiveness of Selected Diesel Particulate Matter Control Technologies for Underground Mining Applications: Isolated Zone Study, 2003
  5/1/2006 - Reports of Investigations
  An underground metal mine study assessed the effects of diesel emissions control technologies (such as DPF systems, diesel oxidation catalytic converter, and biodiesel blends) on concentrations of diesel particulate matter and gases in mine air.
• Technology News 515 - Float Coal Dust Explosion Hazards
  4/1/2006 - Technology News
  This publication is intended to promote awareness of float coal dust explosion hazards in the mining industry and offers a float coal dust mitigation technique.
• Evaluation of the SKC® DPM Cassette for Monitoring Diesel Particulate Matter in Coal Mines
  12/1/2004 - Peer reviewed journal articles
  A commercial version of the BOM impactor, called the DPM Cassette, was recently introduced by SKC®. Tests were conducted to evaluate the performance of the DPM Cassette for measuring diesel-source elemental carbon in the presence of coal dust.
• Continuous Wave Laser Ignition Thresholds of Coal Dust Clouds
  8/1/2003 - Peer reviewed journal articles
  Laser-based instruments are used in areas where coal dust ignition presents a safety hazard. This NIOSH study determines when an optical beam may be considered a potential ignition source in underground coal mines or coal storage facilities.
• Laser Ignition of Flammable Gas
  3/1/1999 - Conference papers
  Emerging laser technologies are quickly gaining acceptance in the industrial workplace. This NIOSH research provides a scientific basis for developing safety guidelines for optical equipment in the presence of flammable methane gas and coal dust.
• Coal Dust Explosibility
  1/1/1996 - Peer reviewed journal articles
  This paper reports US Bureau of Mines (USBM) research on the explosibility of coal dusts. The purpose of this work is to improve safety in mining and other industries that process or use coal.