Home >  Term: API gravity
API gravity

A specific gravity scale developed by the American Petroleum Institute (API) for measuring the relative density of various petroleum liquids, expressed in degrees. API gravity is gradated in degrees on a hydrometer instrument and was designed so that most values would fall between 10掳 and 70掳 API gravity. The arbitrary formula used to obtain this effect is: API gravity = (141. 5/SG at 60掳F) - 131. 5, where SG is the specific gravity of the fluid.

0 0

Creator

  • BSchmidt
  •  (Gold) 2424 points
  • 100% positive feedback
© 2025 CSOFT International, Ltd.