Section R11-1-1860. Blasts in gassy mines shall be initiated electrically  


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  • Blasts in gassy mines shall be initiated electrically, and multiple- shot blasts shall be initiated only with millisecond-delay detonators. Permissible blasting units of capacity suitable for the number of holes in a round to be blasted shall be used unless the round is fired from the surface when all men are out of the mine.

Historical Note

Former Rule 18:60.