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Specific gravity (SG) is one of the base hydrometry units used for relative density. In most cases this is relative to the density of water, water therefore having a specific gravity of one (1).
Specific gravity measurement. The specific gravity is usually measured using an instrument called a hydrometer. The hydrometer partially submerges in the liquid sample, and the reading on the scale at the air-water junction point is recorded, as illustrated in Fig. 1.7.3.
21 Νοε 2023 · Specific gravity is the ratio of the density of a liquid when compared to the density of water at 60 degrees Fahrenheit. Hydrometers allow specific gravity to be calculated.
4 Νοε 2019 · A hydrometer or hydroscope is a device that measures the relative densities of two liquids. They are typically calibrated to measure the specific gravity of a liquid.
A hydrometer or lactometer is an instrument used for measuring density or relative density of liquids based on the concept of buoyancy. They are typically calibrated and graduated with one or more scales such as specific gravity.
specific gravity, ratio of the density of a substance to that of a standard substance. The usual standard of comparison for solids and liquids is water at 4 °C (39.2 °F), which has a density of 1.0 kg per litre (62.4 pounds per cubic foot).
Hydrometer, device for measuring some characteristics of a liquid, such as its density (weight per unit volume) or specific gravity (weight per unit volume compared with water). The device consists essentially of a weighted, sealed, long-necked glass bulb that is immersed in the liquid being.
