Standard Atmosphere
type: Unit
description: The unit for $\textit{Standard Atmosphere}$, symbol: $atm$, is an international reference pressure defined as $101.325 \,kPa$ and formerly used as unit of pressure. For practical purposes it has been replaced by the bar which is $100 kPa$. The difference of about 1% is not significant for many applications, and is within the error range of common pressure gauges.
applicable system: CGS
conversion multiplier: 101325.0
conversion multiplier SN: 1.01325E5
has dimension vector: A0E0L-1I0M1H0T-2D0
has quantity kind: ForcePerArea
has quantity kind: VapourPressure
iec61360 code: 0112/2///62720#UAA322
informative reference: https://cdd.iec.ch/cdd/iec62720/iec62720.nsf/Units/0112-2---62720%23UAA322
informative reference: https://en.wikipedia.org/wiki/Atmosphere_(unit)
scaling of: PA
symbol: atm
ucum code: atm
udunits code: atm
unece common code: ATM
unit for quantity kind: ForcePerArea
unit for quantity kind: VapourPressure
wikidata match: Q177974