Irani, M. C.
Methane analyzer system to record continuously the methane content of coal mine ventilation air / by M.C. Irani, P.W. Jeran and D.H. Lawhead. - Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1975. - 14 p. : ill. - Report of investigations ; 8009 . - United States. Bureau of Mines. Report of investigations ; 8009. . - Report of investigations (United States. Bureau of Mines) ; 8009 .
91055090
Methane--Analysis.
Coal mines and mining--Safety measures.
Mine ventilation.
Methane analyzer system to record continuously the methane content of coal mine ventilation air / by M.C. Irani, P.W. Jeran and D.H. Lawhead. - Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1975. - 14 p. : ill. - Report of investigations ; 8009 . - United States. Bureau of Mines. Report of investigations ; 8009. . - Report of investigations (United States. Bureau of Mines) ; 8009 .
91055090
Methane--Analysis.
Coal mines and mining--Safety measures.
Mine ventilation.