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" The difference in results obtained by three, four, and five minutes' preliminary treatment is small and in all subsequent experimental tests the time of the preliminary heating was four minutes. "
The Philippine Journal of Science - Seite 44
1907
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Journal of the American Chemical Society, Band 29

American Chemical Society - 1907 - 1402 Seiten
...Testing Plant, says, "The difference in results obtained by three, four and five minutes preliminary treatment is small and in all subsequent experimental...of the preliminary heating was four minutes." The author's experiments show that with some Philippine coals a longer period of preliminary treatment...
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Report of the Philippine Commission to the Secretary of War ... 1900 ..., Teil 1

United States. Philippine Commission (1900-1916) - 1901 - 608 Seiten
...fuel-testing plant, says : " The difference in results obtained by three, four, and five minutes' preliminary treatment is small and in all subsequent experimental...treatment is necessary to give very accurate results. 1n the coals tested, the deter.miuations of the volatile combustible matter are given as ascertained...
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Bulletin, Ausgaben 319-324

1908 - 874 Seiten
...35.42 per cent. The difference in results obtained by the three-, four-, and live-minute preliminary treatment is small, and in all subsequent experimental...time of the preliminary heating was four minutes. To determine the mechanical losses and difference in volatile compounds given off, a number of ash...
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Chemical News and Journal of Physical Science, Band 94

1906 - 446 Seiten
...35-42 per cent. The difference in the results obtained by the three, four, and five minute preliminary treatment is small, and in all subsequent experimental...time of the preliminary heating was four minutes. To determine the mechanical losses and difference in volatile compounds given off, a number of ash...
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Geology and Oil Resources of the Santa Maria Oil District ..., Ausgaben 322-325

Ralph Arnold, Robert van Vleck Anderson - 1907 - 564 Seiten
...35.42 per cent. The difference in results obtained by the three-, four-, and five-minute preliminary treatment is small, and in all subsequent experimental...time of the preliminary heating was four minutes. To determine the mechanical losses and difference in volatile compounds given off, a number of ash...
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Bulletin of the United States Geological Survey

Geological Survey (U.S.) - 1907 - 64 Seiten
...35. e2 per cent. The difference in results obtained by the three-, four-, and five-minute preliminary treatment is small, and in all subsequent experimental tests the time of the preliminar}- heating was four minutes. To determine the mechanical losses and difference in volatile...
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Annual Reports of the Secretary of War, Band 8,Teil 2

United States. War Department - 1909 - 634 Seiten
...fuel-testing plant, says : " The difference in results obtained by three, four, and five minutes' preliminary treatment is small and in all subsequent experimental...ascertained by the official method and two others, which are intended to avoid the quick application of heat and therefore the loss which ensues in some...
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Report of the United States Philippine Commission to the Secretary ..., Teil 1

United States. Philippine Commission, 1900-1916 - 1909 - 604 Seiten
...and five minutes' preliminary treatment is small and in all subsequent experimental tests the timo of the preliminary heating was four minutes." The...treatment is necessary to give very accurate results. 1n the coals tested, the determinations of the volatile combustible matter are given as ascertained...
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Bulletin

1909 - 1090 Seiten
...35.42 per cent. The difference in results obtained by the three-, four-, and five-minute preliminary treatment is small, and in all subsequent experimental tests the time of the preliminary heating was foulminutes. To determine the mechanical losses and difference in volatile compounds given off, a number...
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