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Books Bücher 1 - 10 von 51 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 chemical analysis of iron

Andrew Alexander Blair - 1901 - 309 Seiten
...seven minutes. 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 free, and the determination should be made in a place free from draughts. The...
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Geological Survey of Michigan

Michigan. Geological Survey - 1900 - 67 Seiten
...burner. The flame used should be 20 to 25 centimeters high and burning free, and the determination made in a place free from draughts. The upper surface of the cover should burn free, but the lower should remain covered with carbon. To find volatile combustible matter subtract...
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Report of the Philippine Commission to the Secretary of War ... 1900 ..., Teil 1

United States. Philippine Commission (1900-1916) - 1901
...burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6 to 8 centimeters above the top of the burner. The flame...determination should be made in a place free from drafts. The upper surface of the cover should burn clear, but the under surface should remain covered...
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The School of Mines Quarterly, Band 25

1904
...bottom 6-8 cm. above the top of the burner. The flame should be 25 cm. high, and the determination made in a place free from draughts. The upper surface of the cover should burn clean but the under surface remain covered with carbon. To find the volatile combustible matter subtract...
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Quantitative Analysis for Mining Engineers

Edmund Howd Miller - 1904 - 137 Seiten
...bottom 6-8 cm. above the top of the burner. The flame should be 25 cm. high, and the determination made in a place free from draughts. The upper surface of the cover should burn clean but the under surface remain covered with carbon. To find the volatile combustible matter subtract...
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The modern asphalt pavement

Clifford Richardson - 1905 - 580 Seiten
...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...upper surface of the cover should burn clear, but the under surface should remain covered with carbon." FIXED CARBON IN BITUMENS. 1 Egyptian. The residue...
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Technical Methods of Ore Analysis

Albert Howard Low - 1905 - 273 Seiten
...minutes. The crucible should be supported on a platinum or pipe-stem 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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The Modern Asphalt Pavement

Clifford Richardson - 1905 - 580 Seiten
...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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Technical Methods of Ore Analysis

Albert Howard Low - 1905 - 273 Seiten
...minutes. The crucible should be supported on a platinum or pipe-stem 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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The Modern Asphalt Pavement

Clifford Richardson - 1905 - 580 Seiten
...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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