83:(MSHA) published an emergency temporary standard increasing the total incombustible requirement in intake airways to 80%, effective June 21, 2011. The 65% TIC requirement was based on an average particle size termed "mine-size dust," which was based on an average of representative samples collected from mines in the 1920s. To determine compliance with the federal regulation, mine inspectors systematically collect dust samples from sections of underground coal mines and send the samples to the MSHA
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U.S. 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. Prior to
September 2010, U.S. federal regulation
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mandated that the nation’s coal mines maintain a total incombustible content (TIC) of at least 65% in nonreturn entries and at least 80% in the return airways. In
September 2010, the U.S.
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66:. Rock dust has been used since the early 1900s, but there have been technological improvements since then.
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Harris, Marcia L.; Sapko, Michael J.; Varley, Floyd D.; Weiss, Eric S. (August 2012).
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Harteis, SP; Alexander, DW; Harris, ML; Sapko, M; Weiss, ES (1 November 2016).
133:"Coal Dust Explosibility Meter Evaluation and Recommendations for Application"
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This article is about limestone dust. For soil micronutrient supplement, see
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This article incorporates text from this source, which is in the
112:. U.S. National Institute for Occupational Safety and Health
110:"Review of Rock Dusting Practices in Underground Coal Mines"
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62:levels down, and also prevents the incidence of
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58:. The dust acts as a heat sink, keeps
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138:. Centers for Disease Control
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27:Crushed rock used in mines
89:Mount Hope, West Virginia
56:coal dust explosions
64:black lung disease
16:(Redirected from
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179:Coal mining
73:30 CFR
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168:Categories
95:References
52:coal mines
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32:rock flour
60:coal dust
48:limestone
40:Rock dust
18:Rock dust
142:30 March
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.