API unit
Noun
Meaning
API unit (plural API units)
(oil industry) A unit of radioactivity used for measuring natural gamma rays in the ground.
The radioactivity of a typical shale is 100 API units.
Noun
API unit (plural API units)
(oil industry) A unit of radioactivity used for measuring natural gamma rays in the ground.
The radioactivity of a typical shale is 100 API units.