The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water: if its API gravity is greater than 10, it is lighter and floats …

Formulas and examples of calculation of average molecular weight of hydrocarbon mixtures from gravity and average boiling point, achieved from distillation data.

API gravity is defined as the heaviness or lightness property of the liquid with respect to water. This parameter is specifically derived for petroleum products.

API gravity is short for American Petroleum Institute gravity, an inverse measure that is used to determine the weight of petroleum liquids in comparison to water.

Jun 19, 2025 · API gravity and specific gravity are essential measurements for understanding the density and characteristics of fluids. While API gravity serves a specialized role in evaluating …

Table Definitions, Sources, and Explanatory Notes

Sep 3, 2025 · In the petroleum industry, API gravity is one of the main measurements used to classify crude oil and refined products. Developed by the American Petroleum Institute (API), …