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1
The Physics of Metrology: All about Instruments: From ...
The effusiometer derives the density of gases from the time a predetermined
volume of gas takes to escape through a small opening or nozzle. An apparatus (
Fig. 9.1) built to this principle consists of a cylindrical container with a calibrated ...
2
Physical laboratory experiments for engineering students
EXPERIMENT 12 Specific Gravity of Gases with Effusiometer Object. To
determine the specific gravity of illuminating gas by means of the effusiometer.
Also, to determine the rate of gas consumption for a fish-tail burner and for a
Bunsen ...
Samuel Sheldon, Erich Hausmann, 1917
3
Science Vocabulary Builder
An effusiometer, a term seldom used, measures the effusion of a gas, its escape
through tiny holes, into a vacuum. To the question: 'A glass jar with a tiny hole in
the top and a large one where it is immersed in water at the bottom, which is ...
4
Process Technology International
(2) where y = relative density of gas (air = 1) M = molecular weight of gas G = time
of gas effluence from effusiometer(s) A = time of air effluence from effusiometer(s)
The measurements have to be performed on an effusiometer. In this widely ...
One effusiometer designed by Nash5 employs orifices about 0.015 mm in
diameter made in a thin (0.01-mm) glass membrane by a spark discharge. Very
low working pressures are used, satisfying one of the basic conditions of
Graham's law, ...
6
Natural gasoline: testing, manufacturing and properties
Table 3— COMPARATIVE RESULTS OF SPECIFIC GRAVITY TESTS OF
NATURAL GAS BY EFFUSIOMETER AND FLOWMETER— POSITIVE METER
METHOD This flowmeter-positive meter device for determining specific gravity of
gas ...
George G. Oberfell, R. C. Alden, 1924
7
English vocabulary builder
EFFUSIOMETER (ef-fu-si-om'-e-ter) n. An instrument used to measure relative
rates of diffusion of gases, a glass jar with a tiny hole in the top and a large one
immersed in water at the bottom. The two instruments effusiometer and
hygrometer ...
Johnson O'Connor, Human Engineering Laboratory (U.S.), 1948
8
Tests of Instruments for the Determination, Indication, Or ...
... gas as sampled, including the water vapor contained in it. In the "Effusiometer"
and the Ranarex instruments the gas is saturated or nearly saturated with water
vapor before testin and its specific gravit subsequently computed to a dry basis.
Francis Albert Smith, John Hartshorn Eiseman, E. Carroll Creitz, 1947
An apparatus, the Effusiometer, was devised in 1858 by BUNSEN to measure the
rates of effusion of gases, and in this way to compare their molecular weights.
The apparatus consists of a tube inverted in a trough of mercury and closed at the
...
10
Hazardous Chemicals Handbook
... treatment/recovery plant Calculation from published data Calorimeters
Chemical analysis (q.v.) Chromatography Chancel flask, or effusiometer
Tabulated Hygrometer ASTM method Tabulated see Calorific value and
Flammable limits ASTM ...
