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Yeah but then how does that get calibrate.....
By a better calibrator. Which, in turn, is calibrated by a dead weight calibrator, which uses masses acting on a piston, or a reference oil/mercury manometer. NIST is working on an optical pressure standard that might be used someday.
Yeah but then how does that get calibrate.....
By a better calibrator. Which, in turn, is calibrated by a dead weight calibrator, which uses masses acting on a piston, or a reference oil/mercury manometer. NIST is working on an optical pressure standard that might be used someday.