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What does IN HG stand for?

IN HG stands for Inches of Mercury

This definition appears very frequently and is found in the following Acronym Finder categories:

  • Science, medicine, engineering, etc.

Samples in periodicals archive:

Both power plant options produce 15 inches of mercury.
A 99-hp diesel engine produces up to 15 inches of mercury and 3,000 psi of water pressure.