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The National Institute for Occupational Safety and Health (NIOSH)





Rock Dust Partnership
Keywords: Rock dusting
Photo of in-mine test of hydrophobic rock dust dispersibilityThis partnership addresses issues about using rock dust to prevent coal dust explosions.
Upcoming meetings:
To be announcedPast meetings:
9/30/2020 - Agenda & presentations - Action items - Questions & Answers
11/15/2018 - Agenda & presentations - Action Items
12/5/2017 - Presentations - Action itemsRecent updates
Large-scale testing of a foamed rock dust applied wet and allowed to dry was conducted at the Central Mining Institute in Poland in 2019. Due to COVID-19 related issues, a final report of results has been delayed, but will be completed in the coming months.
Due to COVID-19 related concerns, site access to laboratories has been severely limited and efforts to establish the dust dispersion chamber as a NIOSH standard method are on hold. Testing will resume once regular access is permitted.
Recent outputs
Publication: Comparative cytotoxicity of respirable surface-treated/untreated calcium carbonate rock dust particles in vitro
Final Summary Report: Large-scale Dust Explosions: Treated vs. Non-treated Rock Dust
Publication: Design and development of a rock dust dispersion chamber to quantify the dispersibility of rock dust
Publication: Particle size and surface effects on explosibility using a 20-L chamber
See Also
Coal Dust Explosibility
Coal Dust Explosibility Meter Evaluation and Recommendations for Application
Coal Dust Particle Size Survey of U.S. Mines
Coal Dust Particle Size Survey of US Mines
Determining Flame Travel Measurements from Experimental Coal Dust Explosions
How Does Limestone Rock Dust Prevent Coal Dust Explosions in Coal Mines?
Mitigating Coal Dust Explosions in Modern Underground Coal Mines
Recommendations for a New Rock Dusting Standard to Prevent Coal Dust Explosions in Intake Airways
Rock Dusting Considerations in Underground Coal Mines
Technology News 515 - Float Coal Dust Explosion Hazards
Page last reviewed: November 4, 2020
Page last updated: July 29, 2020
Content source: National Institute for Occupational Safety and Health, Mining Program
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