degree classification of mines

Banksman   means  person  at top of  incline and  shaft  appoint to look the man things and tools for lowering and  uppering and ringing the bell

Coal means anthracite bituminous lignite peat and other carbon products which sells as
Coal and make ready to sell as coal

First degree gassy mines  means coal seam or part of coal seam that is in ug mines
And the general body of air in underground mines  the  percentage of inflammable gas
Is less than0.1% and  not more than 1m3 of inflammable gas per tonne coal produced


Second degree gassy mines  means coal seam or part of coal seam that is in ug mines
And the general body of air in underground mines  the  percentage of inflammable gas
Is more than 0.1% or more than 1m3 and not more than 10m3 of inflammable gas per tonne coal produced

Third degree gassy mines  means coal seam or part of coal seam that is in ug mines

And the general body of air in underground mines  the  percentage of inflammable gas
Is more than 0.1% and more than 10m3 of inflammable gas per tonne coal produced