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- Hazard prevention and control:
- Recirculating ventilation
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- Reports of Investigations
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1/1/1974 - Reports of InvestigationsThe Bureau of Mines has successfully used sulfur hexafluoride (SF6) as a tracer gas to measure mine air flows under conditions where conventional methods have failed. SF6 was employed experimentally to measure accurately recirculation of return into int...
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Content source: National Institute for Occupational Safety and Health, Mining Program