Bulletin, Utgave 347U.S. Government Printing Office, 1931 |
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Resultat 1-5 av 8
Side 1
... hydrogen sulphide are found in a coal mine . During a coal - mine fire or explosion carbon monoxide content is likely to be high ( 4 per cent or more ) , and if the coal contains much sulphur the fire fumes may contain some sulphur ...
... hydrogen sulphide are found in a coal mine . During a coal - mine fire or explosion carbon monoxide content is likely to be high ( 4 per cent or more ) , and if the coal contains much sulphur the fire fumes may contain some sulphur ...
Side 2
... hydrogen sulphide , sulphur diox- ide , carbon monoxide , carbon dioxide , methane , and hydrogen , as well as oxides of arsenic , antimony , etc .; moreover , there is frequently a definite deficiency of oxygen . In addition to the ...
... hydrogen sulphide , sulphur diox- ide , carbon monoxide , carbon dioxide , methane , and hydrogen , as well as oxides of arsenic , antimony , etc .; moreover , there is frequently a definite deficiency of oxygen . In addition to the ...
Side 5
... hydrogen sulphide at the top . The light of a carbide lamp and a candle were extinguished at the top , and apparently some of the gases in the winze were flowing out and into the tunnel and through con- nections to the third level . Air ...
... hydrogen sulphide at the top . The light of a carbide lamp and a candle were extinguished at the top , and apparently some of the gases in the winze were flowing out and into the tunnel and through con- nections to the third level . Air ...
Side 8
... hydrogen sulphide gas in comparatively shallow shafts for foundations for bridges over rivers . In some instances workers have been killed and in many others they have been made decidedly ill because sufficient precautions were not ...
... hydrogen sulphide gas in comparatively shallow shafts for foundations for bridges over rivers . In some instances workers have been killed and in many others they have been made decidedly ill because sufficient precautions were not ...
Side 9
... hydrogen sulphide and possibly , under certain conditions , sulphur trioxide . In some iron ore mines with adjacent black - shale strata spontaneous fires give off fumes containing hydrogen sulphide and sulphur dioxide as well as carbon ...
... hydrogen sulphide and possibly , under certain conditions , sulphur trioxide . In some iron ore mines with adjacent black - shale strata spontaneous fires give off fumes containing hydrogen sulphide and sulphur dioxide as well as carbon ...
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Vanlige uttrykk og setninger
activated iodine pentoxide adequate amounts asphyxial asphyxial gases atmosphere Bull Bureau of Mines burning candle carbide lamp carbon dioxide carbon monoxide cent of carbon cent of oxygen Circ circulation of air coal mines combustible material decidedly dangerous deficient in oxygen dioxide and nitrogen dry-bulb temperatures efficiency electric arc explosive gas extinguished fire hazards flame safety lamp found in metal gas mask GASES FOUND gases high GASES IN METAL Gilpin County Harrington high in carbon hydrogen sulphide ignitions of methane inflammable inhaled Investigations killed metal mines metal-mine blasting metal-mine fires miners numerous open light oxides of nitrogen oxygen breathing apparatus oxygen content palladium chloride percentage of carbon poisonous gases PRECAUTIONS AGAINST GASES Pyrotannic Acid Method quantities relative humidity Rept respiratory protection result rock Rock-Strata Gases Sayers SCOTT TURNER shallow shafts strata sulphur dioxide sulphur gases Tech tested tion tunnel type N gas underground United States Bureau unventilated winze workers Yant
Populære avsnitt
Side 5 - ... are a result of the action of atmospheric air and mine water upon the sulphides and carbonates in the fissured rock.
Side 9 - Some of the heaviest losses of life in metal-mine fires have resulted from the burning of less than a railroad freight car or only a few cords of timber.