Zeta potential
18 July 2017
Assistant driller’s chair
25 July 2017
Zeta potential
18 July 2017
Assistant driller’s chair
25 July 2017

API gravity

The measure of the density of gravity of liquid petroleum products in the United States; derived from relative density in accordance with the following equation:

API gravity at 60° F = (141.5 + relative density 60/60°F) – 131.5

API gravity is expressed in degrees, 10° API being equivalent to 1.0, the relative density of water.