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pressure gauge |
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pressure gaugeInstrument for measuring the condition of a fluid (liquid or gas) that is specified by the force the fluid would apply, when at rest, to a unit area, such as pounds per square inch (psi) or pascals (Pa). The reading on the gauge, called the gauge pressure, is always the difference between two pressures. When the lower of the pressures is that of the atmosphere, the total (or absolute) pressure is the sum of the gauge and atmospheric pressures. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Table A1 Uncertainties for a 100 kPa pressure measurement made with the piston pressure gage used as the standard for pressure calibrations Uncertainty category Standard uncertainty Contrib (k = 1) Relative Absolute Piston Pressure gage (x [10. To avoid such an undesirable chain of events, it's important that the filter be serviced at the prescribed interval, or, if equipped with a differential pressure gage, when the pressure drop across the filter reaches the prescribed value. |
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