API gravity is necessary for the calculation of specific gravity of petroleum products, because

API gravity is necessary for the calculation of specific gravity of petroleum products, because Correct Answer Volume of the petroleum products changes with temperature

Since volume of petroleum products changes significantly with temperature, that means density of petroleum products changes significantly with temperature, so that’s why specific gravity of petroleum products changes with temperature, and that’s why API gravity is required.

Related Questions

Specific gravity on API scale is given by the relation(where, G = specific gravity at 15.5°C).
Two statements numbered I and II are given. There may be cause and effect relationship between the two statements. Read both the statements and choose the correct option. Statements: I. The prices of petroleum products dropped marginally last month. II. The State Government reduced the tax on petroleum products last month.