Bulletin, Utgave 347U.S. Government Printing Office, 1931 |
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Side
... Gases possible in metal mines_ Methane or hydrogen in metal mines or tunnels .. Gas explosions in tunnel work ... Sulphur dioxide .. Carbon monoxide . Oxides of nitrogen_ Precautions against gases found in metal mines_ Fire precautions ...
... Gases possible in metal mines_ Methane or hydrogen in metal mines or tunnels .. Gas explosions in tunnel work ... Sulphur dioxide .. Carbon monoxide . Oxides of nitrogen_ Precautions against gases found in metal mines_ Fire precautions ...
Side 1
GASES THAT OCCUR IN METAL MINES1 By D. HARRINGTON 2 and E. H. DENNY 8 METAL - MINE AND COAL - MINE ATMOSPHERES 66 ... sulphur the fire fumes may contain some sulphur dioxide . GASES POSSIBLE IN METAL MINES Methane has been found in a ...
GASES THAT OCCUR IN METAL MINES1 By D. HARRINGTON 2 and E. H. DENNY 8 METAL - MINE AND COAL - MINE ATMOSPHERES 66 ... sulphur the fire fumes may contain some sulphur dioxide . GASES POSSIBLE IN METAL MINES Methane has been found in a ...
Side 2
... , some rather extensive and troublesome accumula- tions of methane have been found . GAS EXPLOSIONS IN TUNNEL WORK 3 Several ignitions of methane 2 GASES THAT OCCUR IN METAL MINES Methane or hydrogen in metal mines or tunnels.
... , some rather extensive and troublesome accumula- tions of methane have been found . GAS EXPLOSIONS IN TUNNEL WORK 3 Several ignitions of methane 2 GASES THAT OCCUR IN METAL MINES Methane or hydrogen in metal mines or tunnels.
Side 5
HIGH - NITROGEN AND LOW - OXYGEN GASES 5 are level or approximately level ... sulphur dioxide present as determined by odor was too small to be determined ... gases , makes it fairly certain that chemical action , with heat liberation ...
HIGH - NITROGEN AND LOW - OXYGEN GASES 5 are level or approximately level ... sulphur dioxide present as determined by odor was too small to be determined ... gases , makes it fairly certain that chemical action , with heat liberation ...
Side 6
... gases . It was stated that a number of years ago inflammable gas had been ignited with an open light at the breast ... Sulphur dioxide was de- Denny , E. H. , Marshall , K. L. , and Fieldner , A. C. , Rock - Strata Gases in the Cripple ...
... gases . It was stated that a number of years ago inflammable gas had been ignited with an open light at the breast ... Sulphur dioxide was de- Denny , E. H. , Marshall , K. L. , and Fieldner , A. C. , Rock - Strata Gases in the Cripple ...
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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.