The story
From API (“American Petroleum Institute”).
Etymology from Wiktionary, CC BY-SA 4.0.
API gravity
Today it means: A specific gravity scale measuring the relative density of various petroleum liquids, expressed in degrees. Full definition →
Today it means: A specific gravity scale measuring the relative density of various petroleum liquids, expressed in degrees. Full definition →
From API (“American Petroleum Institute”).
Etymology from Wiktionary, CC BY-SA 4.0.