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Specific gravity of any liquid can be tested with the help of a Digital Specific Gravity Balance. The scale uses the difference between the weight of a sample in air and the weight in water to determine specific gravity.
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.
To calculate the specific gravity of a substance, follow these easy steps: Use a scale to measure the mass of that volume: m. Calculate the ratio between the densities: sg = ρ/ρ₀.
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. Example 1: Calculate the specific gravity of iron. The density of iron is 7850 kg/m 3.
In this guide, we’ll walk you through how to calculate the specific gravity of liquids using simple formulas and examples. What is Specific Gravity? Specific gravity, also known as relative density, is the ratio of the density of a substance to the density of water at 4°C (the temperature where water has its maximum density).
Here are three common methods to test the specific gravity of liquids. 1. Hydrometer Method: A hydrometer is a simple device designed to determine the specific gravity of liquids by measuring their buoyancy. It consists of a calibrated cylindrical stem with a weighted bulb at one end that allows it to float vertically in the fluid being tested.
What is specific gravity? Discover the definition of specific gravity and its connection to density. Explore how to convert between units and the instruments used to measure it.
Specific gravity measurements are a way to relate the density of a given substance to the density of water. This is mainly owing to the universal nature of water. Note that the density of water varies slightly with temperature, so specific gravity is also a temperature-specific unit.
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. Specific gravity is the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material, often a liquid. \[\text{specific gravity} = \dfrac{\text{Density of a substance}(\cancel{g/mL})}{\text{Density of the water at the same temperature}(\cancel{g/mL})}\]