# Difference between revisions of "Dictionary:API gravity"

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{{#category_index:A|API gravity}} | {{#category_index:A|API gravity}} | ||

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A measure of the density of liquid hydrocarbons at standard pressure and temperature derived from the equation: | A measure of the density of liquid hydrocarbons at standard pressure and temperature derived from the equation: | ||

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<center><math>\mathrm{API}\ \mathrm{gravity} = \frac{141.5}{\mathrm{SG}} - 131.5 </math></center> | <center><math>\mathrm{API}\ \mathrm{gravity} = \frac{141.5}{\mathrm{SG}} - 131.5 </math></center> | ||

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where | where | ||

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<center><math>\mathrm{SG} = \frac{\rho_\mathrm{oil}}{\rho_\mathrm{H_2 O}} </math></center> | <center><math>\mathrm{SG} = \frac{\rho_\mathrm{oil}}{\rho_\mathrm{H_2 O}} </math></center> | ||

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API gravity is measured in ''degrees API''. 5° to 22° is considered heavy oil; 22° to 31°, medium; greater than 31°, light condensate. | API gravity is measured in ''degrees API''. 5° to 22° is considered heavy oil; 22° to 31°, medium; greater than 31°, light condensate. | ||

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## Latest revision as of 10:00, 4 March 2018

A measure of the density of liquid hydrocarbons at standard pressure and temperature derived from the equation:

where

API gravity is measured in *degrees API*. 5° to 22° is considered heavy oil; 22° to 31°, medium; greater than 31°, light condensate.