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Winter Alert
About this film
Mine Safety and Health Administration Winter Alert DVD512-S - 2000 ( English | Spanish ) This video describes the four lines of defense to guard against mine explosions. The four interrelated lines of defense are ventilation, examinations, ignition sources, and rock dusting. Proper attention to each of these areas can greatly reduce the chances of an explosion at your mine.
Directors & creators
Mine Safety and Health Administration
Subjects
msha.gov
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