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barg

A unit of pressure, the difference in bars between the pressure being measured and standard atmospheric pressure. “barg” comes from bar gauge. Compare bara.

examples

Asynt has developed a novel high-pressure reactor array that integrates directly with their integrity 10 Reaction Station, enabling scientists to undertake up to 10 independently-pressurized reactions (up to 100 barg [bar gauge])[sic] in parallel.

New product announcement.
Science, vol 367, no. 6474, page 218 (10 January 2020).