 | George Farrer Rodwell - Physical sciences - 1871 - 620 pages
...expressing the ratio between the weight of any volume of a substance and the weight of an equal volume of some standard substance. In the case of solids and liquids the standard substance is water ; in the case of gases and vapours, it is usually hydrogen, sometimes atmospheric air. It is... | |
 | James Arnold Crowther - 1919 - 582 pages
...substance to the mass of an equal volume of some standard substance is known as the specific gravity of the substance. In the case of solids and liquids the standard substance is always water at its maximum density (at a temperature of 4° C.). In the case of gases, where the density... | |
 | Arthur Holmes - Geology - 1920 - 300 pages
...Specific Gravity. — The ratio of the mass of any quantity of a substance to the mass of an equal volume of some standard substance. In the case of solids and liquids the latter is chosen as water at 4° C. Cf. Density. A. Holmes : Petrograpnic 'Methods and Calculations,... | |
 | Arthur Holmes - Petroleoy - 1928 - 304 pages
...Specific Gravity. — The ratio of the mass of any quantity of a substance to the mass of an equal volume of some standard substance. In the case of solids and liquids the latter is chosen as water at 4° C. Cf. Density. A. Holmes : Petrographic Methods and Calc 1llations,... | |
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The ratio of the mass of any quantity of a substance to the mass of an equal volume of some standard substance. In the case of solids and liquids the latter is chosen as water at 4° C. 