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Mining Product: How to use the Coal Dust Explosibility Meter
Keywords: CDEM Coal dust Explosions Rock dusting
Original creation date: April 2013
Authors: NIOSH Mining
Video - April 2013
Part 1: IntroductionPart 2: BasicsPart 3: Calibration SamplePart 4: Calibrate the CDEMPart 5: Using the Meter
Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health
Federal regulations require that rock dust be applied in all underground areas of a coal mine to mitigate the propagation of a coal dust explosion. U.S. Federal law 30 CFR 75.403 mandates that the nation’s coal mines maintain a total incombustible content of at least 80% in the intake and return airways. Since 2007, 30 CFR 75.403 has been in the top 11 most frequently cited standards for underground coal mines. Non-compliance with this standard resulting in insufficient incombustible material (essentially rock dust) can have catastrophic consequences in the event of an ignition and a resulting propagating explosion.
The Coal Dust Explosibility Meter is a handheld device developed to assess the explosibility of coal and rock dust mixtures in real time. This series of videos demonstrates the calibration and use of the Coal Dust Explosibility Meter.
Video - April 2013
Part 1: IntroductionPart 2: BasicsPart 3: Calibration SamplePart 4: Calibrate the CDEMPart 5: Using the Meter
Pittsburgh, PA: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health
See Also
Coal Dust and Methane
Coal Dust Explosibility
Coal Dust Explosibility Meter Evaluation and Recommendations for Application
Field Evaluation of the Coal Dust Explosibility Meter
How Does Limestone Rock Dust Prevent Coal Dust Explosions in Coal Mines?
Mitigating Coal Dust Explosions in Modern Underground Coal Mines
Particle Size and Surface Area Effects on Explosibility Using a 20-L Chamber
Recommendations for a New Rock Dusting Standard to Prevent Coal Dust Explosions in Intake Airways
Rock Dusting
Rock Dusting Considerations in Underground Coal Mines
Technical Development of the Coal Dust Explosibility Meter
Technology for Real-Time Monitoring of Coal Dust Explosion Hazards
Technology News 515 - Float Coal Dust Explosion Hazards
Page last reviewed: October 20, 2017
Page last updated: October 22, 2016
Content source: National Institute for Occupational Safety and Health, Mining Program
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