Specific gravity of diesel fuel oil is a comparison of its density with that of pure water. According to Simetric, the density of pure water at 4 degree centigrade is considered as the baseline for specific gravity; so its specific gravity is 1. The density of diesel fuel oil (20 to 60) at 15 degree centigrade is found to be in the range of 820 to 950 kilograms per cubic meter.
According to the Engineering Toolbox, the specific gravity of diesel fuel oil lies in the range of 0.82 to 0.95. The specific gravity of diesel fuel oil is reported at 15.6 degree centigrade. Specific gravity of diesel fuel oil is dimensionless as it is the ratio of density of diesel fuel oil to the density of pure water at 4 degree centigrade.
According to Anglo American Oil, water is considered as the standard for specific gravity of liquids and solids. Diesel fuel oil is lighter than water as its specific gravity is less than 1. Specific gravity also indicates the composition of diesel fuel oil.Learn more about Physics