 | Edward Holyoke Farrington, Fritz Wilhelm Woll - Dairy products - 1899 - 280 pages
...muffle oven, where the contents are burnt to a light greyish ash; the dish is now cooled in a desiccator and weighed. The difference between this weight and that of the empty dish gives the amount of ash in the butter weighed out. 257. 2. About 2 grams of butter are weighed... | |
 | James Flack Norris, Kenneth Lamartine Mark - Chemistry, Inorganic - 1922 - 566 pages
...it stand 15 minutes. (3) Weigh the flask with the stopper, thermometer and glass tube to decigrams. The difference between this weight and that of the empty flask is the weight of the vapor at the temperature observed. To determine the volume of the flask pour out the carbon tetrachloride,... | |
 | West Virginia University. Scientific Association - Science - 1922 - 566 pages
...material passing through the screen was discarded. The screen with the material held thereon was dried and weighed. The difference between this weight and that of the empty screen was *Bouyoucos, GJ Directions for determining the colloidal material of aoils by the hydrometer... | |
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J-in. mesh, suspended in water at a temperature of 20° and weighed; the difference between this weight and that of the empty basket suspended in water is the weight of the saturated sample immersed in water (weight C). 