 Place 1 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 Bunsen burner for seven minutes. The crucible should be supported on a platinum triangle with the bottom 6 to...  The Philippine Journal of Science - Seite 321907Vollansicht - Über dieses Buch
 | Francis Jones Pond, Jerome John Morgan - 1911 - 394 Seiten
...Determination of Volatile Combustible Matter.— Place one gram of fresh, undried coal in a platinum crucible, having a tightly fitting cover. Heat over the full...be supported on a platinum triangle with the bottom six to eight centimeters (two and one-half to three inches) above the top of the burner. The flame... | |
 | 1911 - 710 Seiten
...Carton. — Based on report of committee on coal analysis. Place 1 gram of tar in a platinum crucible having a tightly fitting cover. Heat over the full flame of a Bunsen burner for seven minutes by the watch. The crucible should be supported on a platinum triangle with the bottom 6 to 8 cm. above... | |
 | Augustus Herman Gill - 1912 - 162 Seiten
...Combustible Matter and Coke.*§— Place one gram of fresh, undried powdered coal in a platinum crucible having a tightly fitting cover. Heat over the full flame of a Bunsen burner for seven minutes by the watch. The crucible should be supported on a platinum triangle with the bottom six to eight... | |
 | Albert Howard Low - 1914 - 390 Seiten
...— Place I 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...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 - 1913 - 390 Seiten
...— Place i 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...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... | |
 | Nathaniel Wright Lord, Dana James Demorest - 1913 - 366 Seiten
...procedure, which is essentially to heat 1 grm. of the finely ground sample in a covered platinum crucible over the full flame of a Bunsen burner for seven minutes. The loss in weight represents moisture plus volatile matter. Subtracting the value for moisture from this... | |
 | Augustus Herman Gill - 1917 - 174 Seiten
...Combustible Matter and Coke.*§— Place one gram of fresh, undried powdered coal in a platinum crucible having a tightly fitting cover. Heat over the full flame of a Bunsen burner for seven minutes by the watch. The crucible should be supported on a platinum triangle with the bottom six to eight... | |
 | Andrew Campbell - 1918 - 364 Seiten
...tested is weighed into a platinum crucible weighing 20-30 grammes. provided with a tightly-fitting cover. Heat over the full flame of a Bunsen burner...be supported on a platinum triangle with the bottom 6—8 cm. above the top of a |-inch burner, the flame of which when burning free should be fully 20... | |
 | William A. Bone - 1918 - 560 Seiten
...recognition. " Place, i 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 7 minutes. The crucible should be supported on a platinum triangle with the bottom 6 to Sc.ms. above... | |
 | William Arthur Bone - 1918 - 554 Seiten
...to 30 grams, and having a tightly fitting cover. Heat over the full flame of a Bunsen burner for 7 minutes. The crucible should be supported on a platinum triangle with the bottom 6 to 8 c.ms. above the top of the burner. The flame should be fully 20 c.ms. high when burning free,... | |
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