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Title: Application Of Densitometers
Author: m. J. Sergeskettep
Source: 1976 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1976
Abstract: A densitometer is a device designed to measure the density or specific weight of a substance: solid, liquid or gas. This paper will be limited to the measurement of liquid and gas, or fluid, densities. Density is the mass of a substance per unit volume, while specific weight is the weight per unit volume. For simplicity, we will consider mass and weight as the same and use the term density throughout the paper. We must consider the difference between density and specific gravity. Density is the mass per unit volume at line conditions i.e., operating pressure and temperature. Specific gravity, or relative density, is the ratio of the density of a gas to the density of air, or the density of a liquid to the density of water, with both fluids (gas and air or liquid and water) at standard conditions of pressure and temperature.




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