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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).
Specific gravity is determined by dividing the density of a material by the density of water at 4 degrees Celsius. For the calculation, the density of the material and that of the water must be expressed in the same units.
Specific Gravity (= Relative Density) - SG - is a dimensionless unit defined as the ratio of the density of a substance to the density of a reference substance - at a specified temperature and pressure, and can be expressed as. SG = ρ substance / ρ reference (3) where. SG = Specific Gravity of the substance.
Specific gravity of a liquid is the "ratio of the density of the liquid - to the density of water at 4oC". Specific gravity of some common liquids and fluids: T (oC) = 5/9 [T (oF) - 32] T (oF) = [T (oC)] (9/5) + 32. 6 6. Centiposes, milliPascal, CentiStokes and SSU. Search is the most efficient way to navigate the Engineering ToolBox.
1 Ιουλ 2024 · To calculate the specific gravity of a substance, follow these easy steps: Isolate a known volume of the substance: V. Use a scale to measure the mass of that volume: m. Calculate the density of the substance with the ratio: ρ = m/V. Choose your reference substance and calculate its density: ρ₀ = m₀/V₀.
21 Νοε 2023 · The formula for specific gravity, given that the reference substance is water, is the density of the object divided by the density of the water. Here, we use the Greek symbol Rho to...
The density of water is 1.0 g/mL at room temperature, so the specific gravity is equal to the density of the object expressed without a unit. When substances dissolve in water, the density of the solution is usually different from pure water.
