User:Milton Beychok/Sandbox: Difference between revisions
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The '''API gravity''' is an arbitrary scale developed by the [[American Petroleum Institute]] (API) as a measure of the [[density (chemistry)|density]] of [[Petroleum crude oil|petroleum]] liquids relative to the density of [[water]]. The values of API gravity are expressed as degrees API (°API). | |||
The API gravity is | ==Relationship between API gravity and specific gravity== | ||
The relationship between API gravity and [[specific gravity]] is: | |||
:<math>\mathrm{API\; gravity} = \frac{141.5}{\mathrm{SG}_{60\,^\circ \mathrm{F}}^{60\,^\circ \mathrm{F}}} - \mathrm{131.5}</math> | |||
Revision as of 16:45, 31 January 2010
The API gravity is an arbitrary scale developed by the American Petroleum Institute (API) as a measure of the density of petroleum liquids relative to the density of water. The values of API gravity are expressed as degrees API (°API).
Relationship between API gravity and specific gravity
The relationship between API gravity and specific gravity is:
