![]() Other applications of specific gravity include fluid mechanics, buoyancy and the brewing industry.Conversely the weight can be calculated if the volume is known. Calculating volume of a fluid: The fluid’s volume can be calculated using the specific gravity of the fluid and the weight.Urine Specific Gravity: The Urine Specific gravity (USG) is measured and used mostly in veterinary sciences to understand whether water is excreted or conserved in an appropriate fashion.Determining the additives used in a base material: Specific gravity is used to find out the amount of additives used in a base material which might affect the performance and stability of the base material.Pharmaceuticals: The specific gravity is used to find out the purity of a drug since each of the constituents has a distinct specific gravity.Specific Gravity has a wide range of applications including: Other instruments to measure specific gravity are the Pycnometer, and digital density meters based on oscillating U-tubes. The device is designed to float freely at the liquid surface with a protruding stem giving a reading corresponding to the specific gravity of the liquid. The hydrometer can be used to measure the specific gravity of any liquid. There is a wide range of instruments designed to measure the specific gravity of a material. Weight of water 62.416 lbs per cubic foot at 32☏ 61.998 lbs per cubic foot at 100☏ Density of water 8.34540445202 lbs per gallon 0.036 lbs per cubic inch 1 gram per cubic centimeter (cc) at 39. The reference density of water at 4 oC (39 oF) is used as the reference as these are the conditions of maximum density. Water Properties at normal atmospheric conditions Weight of water, density of water, and speed of sound in water. Where SG = specific gravity, ρ = density of the material (kg/m 3), ρW = density of water ( kg/m 3). ![]() The following formula is used to calculate the specific gravity of a material. The specific gravity of all other materials is compared to water as a fraction heavier lighter or heavier density. The specific gravities of gases usually are compared to dry air which generally has a density of 1.29 g per litre. ![]() By definition, water has a density of 1 kg per litre at this temperature. In more general terms specific gravity is the ratio of the density of a material to that of any standard substance, although usually this is water at 4 degrees Celsius or 39.2 degrees Fahrenheit. Metric and Imperial please use the engineering unit calculators. Specific gravity is unique to every material and has a very wide range of application. Density Table / Temperature Density and Specific Weight of Water in English Units. The temperature and pressure of both the material and water need to be the same as these factors influence the density and hence the specific gravity. The Specific Gravity of liquids and solids is defined as a dimensionless unit which is the ratio of density of a material to the density of water at a given temperature, where density is defined as the material’s mass per unit volume and is measured in kg/m 3.
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