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Gauge Pressure

The pressure within a closed container or pipe as measured with a gauge.

In contrast, absolute pressure is the sum of atmospheric pressure (14.7 lbs/sq in) PLUS pressure within a vessel (as measured by a gauge).

Most pressure gauges read in gauge pressure or psig (pounds per square inch gauge pressure).

See Also: Chlorination Liquid Chromatography Intermittent Flow Manganese Dioxide- Renalin Saturated Solution