Guidelines for the Control and Monitoring of Methane Gas on Continuous Mining Operations by National Institute Fo Safety and Health, D. Human Services, Centers for Disease Cont And Prevention

Guidelines for the Control and Monitoring of Methane Gas on Continuous Mining Operations

National Institute Fo Safety and Health, D. Human Services, Centers for Disease Cont And Prevention

84 pages • missing pub info (editions)

nonfiction art health technology informative medium-paced
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Until the early 1980s, mine face ventilation systems were designed for ventilating cutting depths up to 20 feet. Since that time, use of remotely operated mining machines have allowed cutting depths to increase to 40 ft, increasing concerns about ...

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