 | Andrew Alexander Blair - 1876 - 456 Seiten
..." Place i gramme of fresh, undried, powdered coal in a platinum crucible weighing 20 or 30 grammes and having a tightly fitting cover. Heat over the...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,... | |
 | Incorporated Institution of Gas Engineers, London - 1899 - 296 Seiten
...Matter. — Place one grm. of fresh undried coal iu a plat-iium crucible weighing 20 to 30 grms.,and having a tightly fitting cover. Heat over the full flame of a Bunseu burner for seven minutes. The crucible should bo supported on a platinum triangle with the bottom... | |
 | Michigan. Geological Survey - 1900 - 838 Seiten
...of fresh, undried coal in a platinum crucible, weighing 20 to 30 grams and having a tightly fitted cover. Heat over the full flame of a Bunsen burner...be supported on a platinum triangle with the bottom (i to S centimeters above the top of the burner. The flame used should be 20 to 25 centimeters high... | |
 | 1908 - 874 Seiten
...powdered coal in a platinum crucible weighing 20 or .'!(> grams and having a tightly fitting rover. Heat over the full flame of a Bunsen burner for seven...supported on a platinum triangle, with the bottom ti to S centimeters above the top of the burner. The flame should be fully 20 centimeters high when... | |
 | 1904 - 480 Seiten
...crucible, weighing 20-30 grams, and having a well-fitting cover. Heat over the full flame of a Bunser burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6-8 cm. above the top of the burner. The flame should be 25 cm. high, and the determination made in... | |
 | Edmund Howd Miller - 1904 - 218 Seiten
...crucible, weighing 20-30 grams, and having a well-fitting cover. Heat over the full flame of a Bunser burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6-8 cm. above the top of the burner. The flame should be 25 cm. high, and the determination made in... | |
 | 1909 - 516 Seiten
...Society, Vol. 21, page 1116. Place I gram of pure bitumen in a platinum crucible weighing 20 or 30 grams and having a tightly fitting cover. Heat over the full flame of a Bun sen burner for seven minutes. The crucible should be supported on a platinum triangle with the... | |
 | Charles Frederick Sidener - 1904 - 72 Seiten
...one gram of the fresh, undried, powdered coal in a platinum crucible weighing twenty or thirty grams and having a tightly fitting cover. Heat over the full flame of the Bunsen burner for seven minutes. Cool and weigh. To find volatile combustible matter, subtract... | |
 | Albert Howard Low - 1905 - 318 Seiten
...89.61 and the true per cent. of volatile combustible matter will be 34-25 -(3S-25 X 0.0187) = 33.61. flame of a Bunsen burner for seven 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... | |
 | Albert Howard Low - 1905 - 316 Seiten
...— Place 1 gram of the fresh, undried, powdered coal in a 20- or 3o-gram weighed platinum crucible having a tightly fitting cover. Heat over the full flame of a Bu risen burner for seven minutes. The crucible should be supported on a platinum or pipe-stem triangle... | |
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Determination of Volatile Combustible Matter. " Place i gramme of fresh, undried, powdered coal in a platinum crucible weighing 20 or 30 grammes and having a tightly fitting cover. Heat over the full flame of a Bunsen burner for seven minutes. The crucible... 
