Definition:Standard Atmospheric Pressure
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Definition
The standard atmospheric pressure is the quantity of pressure defined as:
| \(\ds P_0\) | \(=\) | \(\ds 1\) | standard atmosphere | |||||||||||
| \(\ds \) | \(=\) | \(\ds 1 \cdotp 01325 \times 10^5\) | pascals | \(\quad\) in SI units | ||||||||||
| \(\ds \) | \(=\) | \(\ds 1 \cdotp 01325 \times 10^6\) | dynes per square centimetre | \(\quad\) in CGS units | ||||||||||
| \(\ds \) | \(=\) | \(\ds 1 \cdotp 01325 \times 10^3\) | millibars | |||||||||||
| \(\ds \) | \(=\) | \(\ds 760\) | millimetres of mercury | |||||||||||
| \(\ds \) | \(\approx\) | \(\ds 14 \cdotp 696\) | pounds per square inch | \(\quad\) in FPS units |
It is roughly equivalent to the mean sea-level atmospheric pressure on Earth.
Symbol
The symbol for the standard atmospheric pressure is $P_0$.
Sources
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of Mathematical Functions ... (previous) ... (next): $2$. Physical Constants and Conversion Factors: Table $2.4$ Miscellaneous Conversion Factors
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): atmospheric pressure
- 2021: Richard Earl and James Nicholson: The Concise Oxford Dictionary of Mathematics (6th ed.) ... (previous) ... (next): atmospheric pressure