What is the significance of specific gravity determination?
Significance and Use 4.1 Specific gravity is an important property of fluids being related to density and viscosity. Knowing the specific gravity will allow determination of a fluid’s characteristics compared to a standard, usually water, at a specified temperature.
What is the objective of specific gravity experiment?
Aim: To determine the specific gravity of soil solids by Density bottle method. Specific gravity G is defined as the ratio of the weight of an equal volume of distilled water at that temperature, both weights taken in air.
What is the importance of specific gravity determination in the pharmaceutical practice?
l Specific gravity is in automated pharmaceutical equipment used by pharmacists to prepare total parenteral nutrition (TPN) admixtures. ¡ The purpose of the specific gravity of the large-volume liquids being mixed is to determine the weights of components (e.g., dextrose, amino acids, and water).
What specific gravity tells us?
Specific gravity refers to the ratio of the density of an object and the reference material. Furthermore, the specific gravity can tell us if the object will sink or float in reference material. Besides, the reference material is water that always has a density of 1 gram per cubic centimeter or 1 gram per millimeter.
Is used for determination of specific gravity?
One method uses the hydrometer, an instrument that gives a specific gravity reading directly. A second method, called the bottle method, uses a specific-gravity bottle, i.e., a flask made to hold a known volume of liquid at a specified temperature (usually 20°C).
What is the application of specific gravity?
Specific gravity has many other applications: gemologists use it to distinguish similar gems; chemists, to check on the progress of reactions and the concentration of solutions; and auto mechanics, to test battery fluid and antifreeze.
What is used for determination of specific gravity?
How do you test specific gravity?
The normal method of determining specific gravity is to weigh the specimen dry (DW), then to suspend the specimen in water on a string, and to measure the weight pulling on the string (WW) (specimen weight suspended in water). Then you subtract WW from DW, and divide the difference into DW.
What are the factors affecting specific gravity test?
Specific gravity varies with temperature and pressure; reference and sample must be compared at the same temperature and pressure or be corrected to a standard reference temperature and pressure.
What does a higher specific gravity mean?
So if the specific gravity increase, it means the density of the material has increase and since density is the mass per unit volume ( ρ=mV ), there are different ways this is possible – either the mass increases or the volume decreases, or both.
What is specific gravity example?
For example, liquid mercury has a density of 13.6 kg per litre; therefore, its specific gravity is 13.6. The gas carbon dioxide, which has a density of 1.976 grams per litre under standard conditions, has a specific gravity of 1.53 (= 1.976/1.29).
How do you perform a specific gravity test?