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Units of pressure
From GAWDAwiki
(Redirected from Unit of pressure)
Units of pressure are the units used to measure the pressure of a gas or other substance. There are a few different systems used.[1]
Types
| Unit | Measurement |
|---|---|
| Pounds per square inch (psi) | Normal atmospheric pressure is 14.7 psi - a one-square-inch column of air weighs 14.7 pounds |
| Atmosphere (atm) | Normal atmospheric pressure is 1 atm = 14.6psi = 760 torr |
| Torr | Pressure to raise mercury in a column 1 mm |
| Bar | Nearly identical to 1 atm. 1 bar = 0.9869 atm |
| Millibar (mb or mbar) | 1,000 milibar = 1 bar |
| Pascal (Pa) | A pascal equals 1 Newton per square meter |
| Kilopascal (kPa) | A kilopascal is equal to 1,000 pascals |
| Megapascal (MPa) | A megapascal is equal to 1,000,000 pascals or 1,000 kPa |
| Gigapascal (GPa) | A gigapascal is equal to 1,000,000,000 pascals or 1,000 MPa |
