General Specific Gravity of Soil Range for Various Soils This method of determining the specific gravity of soil given here is applicable for soils composed of particles smaller than 4.75 mm (No.4 U.S. The general values for specific gravity for different soils are given in Table -1. Gs = Unit weight (or density) of soil sample only / Unit weight (or density) or water 10×10 Room Construction Cost Excel Sheet.Construction Material Testing Menu Toggle.30×40 House Plans | 1200 sq ft House Plan.20*50 House Plan | 1000 sq ft House Plan.Hydrometer will sink in low density liquids and float in high density liquids.Specific gravity of sample = Density of sample/ Density of water.Density of sample = Mass of sample/ Volumeĭensity of sample = Ws/ W × density of water.Note down the difference of W3 and W1 as Ws.Note down the difference of W2 and W1 as W.Then, weigh it on a weighing balance and note down its weight as W3. Put on the lid and wipe the outer surface of the bottle with absorbent paper or tissue paper. Fill the same specific gravity bottle with the desired liquid sample up to the brim.Then, weigh it on a weighing balance and note down its weight as Fill the same specific gravity bottle with distilled water up to its brim.Take a clean specific gravity bottle and note down its weight as W1.S is the specific gravity of the liquid substance.Note down the reading on the hydrometer as.Dip hydrometer in the sample and let it float freely.Take the liquid sample in a clean empty beaker up to the half.If reference substance is water, then its density is 1.0 g/cm 3. Specific gravity = Density of substance/ Density of reference substance Calculate the density of the solid substance from the method illustrated in the experiment ( DETERMINATION OF DENSITY OF FOODS).Those with an SG less than 1 are less dense than reference substance and will float on it. Those with SG greater than 1 are denser than reference substance and will sink. Substances with a specific gravity of 1 are neutrally buoyant. Specific gravity of solids is calculated by use of a weighing balance. Both methods are used to measure specific gravity of liquids. Specific gravity of a substance is measured by two means: By hydrometer and by specific gravity bottle. At a same given volume, specific gravity is the ratio of the mass of a substance to the mass of a reference substance. Principle: Specific gravity is the ratio of the density of a substance to the density of a reference substance. Apparatus: 100 mL Measuring cylinder, 100 mL Beaker.
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