A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Study to determine potential dust exposure in connection with intermittent rock drilling in coal mines
Method of sampling airborne dust; free-silica content of rock strata; dust concentrations produced by various operations; total exposure time; allowable dust concentrations applicable to rock drilling in coal mines, and dust control methods.
Study to determine potential dust exposure in connection with intermittent rock drilling in coal mines
Method of sampling airborne dust; free-silica content of rock strata; dust concentrations produced by various operations; total exposure time; allowable dust concentrations applicable to rock drilling in coal mines, and dust control methods.
Study to determine potential dust exposure in connection with intermittent rock drilling in coal mines
U. S. Bur Mines -- Report Investigations
Owings, C.W. (author) / Johnson, L. (author)
1953
7 pages
Report
English
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