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Books Bücher 41 - 49 von 49 in Place 1 gram of fresh, undried, powdered coal in a platinum crucible weighing 20...
" Place 1 gram of fresh, undried, powdered coal in a platinum crucible weighing 20 to 30 grams and having a tightly fitting cover. Heat over the full flame of a Bunsen burner for seven minutes. "
Bulletin - Seite 38
1908
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The Construction of Roads and Pavements

Thomas Radford Agg - 1920 - 463 Seiten
...Bunsen burner. The crucible should be supported on a platinum triangle with the bottom from 6 to 8 centimeters above the top of the burner. The flame should be fully 20 centimeters high when burning freely, and the determination should be made in a place free from drafts. The upper surface of the...
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The Technical Examination of Crude Petroleum, Petroleum Products and Natural ...

William Allen Hamor, Fred Warde Padgett - 1920 - 591 Seiten
...in Fig. 60. The crucible should be supported on a platinum triangle with the bottom from 6 to 8 cm. above the top of the burner. The flame should be fully 20 cm. high when burning freely, and the determination should be made in a place free from drafts. The...
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Bulletin of the U.S. Department of Agriculture

1913
...figure 22. The crucible should be supported on a platinum triangle with the bottom from 6 to 8 cm. above the top of the burner. The flame should be fully 20 cm. high when burning freely, and the deUrmination should be made in a place free from drafts. The...
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The Chemical Engineer: A Monthly Journal of Practical, Applied and ..., Band 1

1905
...triangle with its bottom six or eight cm above the top of the burner. The flame should be fully twenty cm high when burning free, and the determination should...upper surface of the cover should burn clear, but the under should remain covered with carbon. To find volatile combustible matter subtract per cent,...
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The Journal of the Iron and Steel Institute, Band 53

1899
...burner. The flame used should be 20 to 25 centimetres high when burning free, and the determination made in a place free from draughts. The upper surface of the cover should burn clear, but the under surface should remain covered with carbon. To find " Volatile Combustible Matter," subtract...
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Journal, Band 54,Ausgabe 2

Iron and Steel Institute - 1899
...burner. The flame used should be 20 to 25 centimetres high when burning free, and the determination made in a place free from draughts. The upper surface of the cover should burn clear, but the under surface should remain covered with carbon. To find " Volatile Combustible Matter," subtract...
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Good Roads Magazine, Band 10

1909
...burner for 7 minutes. The crucible should be supported on a platinum triangle with the bottom 6 to 8 cm. above the top of the burner. The flame should be fully 20 cm. high when burning free, and the determination should be made in a place free from draughts. The...
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Municipal Engineering, Band 37

1909
...for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6 to 8 cm above the top of the burner. The flame should be fully 20 cm high when burning free, and the determination should be made in a place free from draughts. The...
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Proceedings, Band 9

1909
...for 7 minutes. The crucible should be supported on a platinum triangle with the bottom 6 to 8 cms. above the top of the burner. The flame should be fully 20 cms. high when burning free, and the determination should be made in a place free from draughts. The...
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