| Pa | i- pascal
- SI unit of pressure
The pascal is the standard pressure unit in the MKS metric system, equal to one newton per square meter or one kilogram per meter per second per second.
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| kPa | i- kilopascal
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| N/m2 | i- newton per square meter
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| dyne/cm2 | i- dyne per square centimeter
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| Bar | i- bar
- Metric unit of atmospheric pressure, equal to one million dynes per square centimeter, 100 kilopascals, 750.062 torr, 1.019 72 kilograms of force per square centimeter (kgf/cm2), or about 14.503 78 pounds per square inch (lbf/in2).
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| mBar | i- millibar
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| kgf/cm2 | i- kilogram force per square centimeter
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| atm | i- atmosphere
- One atmosphere equals exactly 1013.25 millibars,
101.325 kilopascals,
approximately 29.92 inches of mercury,
760.0 millimeters of mercury, or
14.6959 pounds of force per inch2
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| psi | i- pound per square inch
- Traditional symbols for pressure units used in hydraulics and plumbing.
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| m H2O 4°C | i- meter of water @ 4°C
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| cm H2O 4°C | i- centimeter of water @ 4°C
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| ft H2O 4°C | i- foot of water @ 4°C
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| inch H2O 4°C | i- inch of water @ 4°C
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| mm Hg 0°C | i- millimeter of mecury @ 0°C
- 1 torr is the same as 1 mmHg. The Torr is a non-metric unit of pressure equal to exactly 1/760 atmosphere.
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| inch Hg 0°C | i- inch of mercury @ 0°C
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