Bulletin, Utgave 347U.S. Government Printing Office, 1931 |
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Resultat 1-5 av 5
Side 5
... determined by odor was too small to be determined analytically . A dry - bulb temperature of 99 ° and a wet - bulb temper- ature of 79 ° were recorded . The excessive heat in this mine , especially in the sections with the irrespirable ...
... determined by odor was too small to be determined analytically . A dry - bulb temperature of 99 ° and a wet - bulb temper- ature of 79 ° were recorded . The excessive heat in this mine , especially in the sections with the irrespirable ...
Side 13
... Determination of Carbon Monoxide in Blood and in Air : Tech . Paper 373 , Bureau of Mines , 1925 , 18 pp . 15 Hall , Clarence , and Howell , S. P. , The Selection of Explosives Used in Engineering and Mining Operations : Bull . 48 ...
... Determination of Carbon Monoxide in Blood and in Air : Tech . Paper 373 , Bureau of Mines , 1925 , 18 pp . 15 Hall , Clarence , and Howell , S. P. , The Selection of Explosives Used in Engineering and Mining Operations : Bull . 48 ...
Side 17
... determination of mine gases have been described in detail in various publications referred to in footnotes . 18 Sayers , R. R. , and Harrington , D. , A Preliminary Study of the Physiological Effects of High Temperatures and High ...
... determination of mine gases have been described in detail in various publications referred to in footnotes . 18 Sayers , R. R. , and Harrington , D. , A Preliminary Study of the Physiological Effects of High Temperatures and High ...
Side 18
... determined by difference.22 The Orsat apparatus is accurate to within about 0.2 in the percentage found . TYPES OF ... determining and continuously record- ing the amount of methane ; for example , in a return - air current . Hydrogen ...
... determined by difference.22 The Orsat apparatus is accurate to within about 0.2 in the percentage found . TYPES OF ... determining and continuously record- ing the amount of methane ; for example , in a return - air current . Hydrogen ...
Side 19
... determined the percentage of carbon monoxide in the air is determined by interpolation on a prepared chart or is calculated from formulas . A quick test of the blood of a person supposed to be suffering from carbon monoxide asphyxia can ...
... determined the percentage of carbon monoxide in the air is determined by interpolation on a prepared chart or is calculated from formulas . A quick test of the blood of a person supposed to be suffering from carbon monoxide asphyxia can ...
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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.