Definitions for

**"Absolute Pressure"****Related Terms:**Pressure, absolute, Gauge pressure, Torr, Kpa, Psia, Inches of mercury, Gage pressure, Mpa, Barometer, Barometric pressure, Atmospheric pressure, Atmosphere, Millibar, Pressure, Mmhg, Mercury barometer, Hectopascal, Standard pressure, Total pressure, Hpa, Air pressure, Barometric, Bar , Pounds per square inch, Kilopascal, Atm, Pressure, total, Dynamic pressure, Pressure gradient, Pressure, static, Aneroid barometer, Static pressure, Ata, Hyperbaric, Isobaric, Pressure, velocity, Pressure gauge, Head pressure, Qfe , Hydrostatic, Reduced pressure, Standard atmosphere, Pressure gradient force, Overpressure, Barograph, Pressure head, Velocity pressure, Psig, Negative pressure, Inches of water gauge

Pressure above zero pressure; the sum of the gauge and atmospheric pressures.

the pressure above a complete vacuum, so that absolute pressures can only have positive values. The absolute pressure of one standard atmosphere at sea level is 14.7 Ib/in2 absolute, or 14.7 psia.

is the arithmetic sum of gauge and atmospheric pressures. It must be used in all calculations involving the basic gas laws.

Gauge pressure plus the atmospheric pressure.

Total pressure equal to gauge pressure plus 14.7 lbs./sq. in at sea level

total pressure measured from an absolute vacuum. It equals the sum of the gauge pressure and the atmospheric pressure corresponding to the barometer (expressed in pounds per square inch).

The total pressure within a vessel, pipe, etc., not offset by external atmospheric pressure.

The pressure above absolute zero, or above a perfect vacuum (See Figure 1).

calculated by using a vacuum as the zero point and including the gauge and atmospheric pressure in the calculation.

The total force per unit area exerted by a fluid. It is the sum of atmospheric and gauge pressures.

The difference between zero pressure and a known pressure. Adjustable Range -- Pressure range within the actuation point that a pressure switch may be adjusted.

A pressure scale that starts with a value of zero for an absolute vacuum.

Gage pressure plus the pressure of the atmosphere, normally 14.696 at sea level at 68o.

Is the sum of gauged pressure and atmospheric pressure.

A quantity of pressure with respect to total vacuum; equal to the sum of a pressure gauge reading and atmospheric pressure (14.69 psia at sea level).

Pressure referenced to full vacuum. In English (pounds per square inch) units, designated as PIA.

Actual pressure on a confined gas, irrespective of the atmosphere on the outside. Absolute pressure = gage pressure + atmospheric pressure.

The pressure above an absolute vacuum. One atmosphere (14.70 psi) greater thar guage pressure. Symbolized as psia when the pressure is in psi units.

The pressure above the absolute zero value of pressure that is theoretically obtained in empty space. (Example: The absolute pressure at sea level is 14.7 psia.)

See PRESSURE.

the pressure exerted on a vacuum.

Atmospheric pressure added to gauge pressure.

Gauge pressure plus barometric pressure. Absolute pressure can be zero only in a perfect vacuum.

The total pressure measured from absolute zero ( i.e., from an absolute vacuum). ( 060)

Gauge pressure plus atmospheric pressure (14.7 lb.per sq.in.) equals absolute pressure.

Gage pressure plus atmospheric pressure.

Atmospheric pressure plus gage pressure.

The sum of atmospheric and gauge pressures, it is the total force per unit area exerted by a fluid and the pressure above a perfect vacuum (zero pressure) in vacuum systems. U.S. units for absolute pressure are pounds per square inch absolute (psia).

Pressure measured with respect to total vacuum abbreviated as "psia" or "bar." Absolute pressure is equal to the sum of a pressure gauge reading and atmospheric pressure (14.69 psia or 1 bar at sea level).

The pressure measured relative to zero pressure (vacuum).

The pressure with reference to absolute zero, that is with no reference to an absolute vacuum: it equals the sum of the atmospheric pressure and the gauge pressure (ISO 3857/1)

absolute pressure measurements are referenced to zero pressure, (a perfect vacuum.)

A pressure measured from absolute zero.

Air at standard conditions (70 degrees F air at sea level with a barometric pressure of 29.92 in. Hg.) exerts a pressure of 14.696 psi. This is the pressure in a system when the pressure gauge reads zero. So the absolute pressure of a system is the gauge pressure in pounds per square inch added to the atmospheric pressure of 14.696 psi (use 14.7 psi in environmental system work) and the symbol is "psia".

The pressure measured by a gauge plus a correction for the effect of air pressure on the gauge (l4.7 psi at sea level).

The pressure above zero pressure, equal; to gauge pressure plus atmospheric pressure.

Absolute temperature Absolute viscosity (Dynamic)