Standard Air

Very often we refer to standard air, for tests results, for fans selection, for design of plants and for many other scopes.

Here, I will only to reports the standar air parameters for a quickly consultation.


DescriptionInternational System of UnitsImperial Units
Density1.2 kg/m30.075 lbm/ft3
Ratio of specific heats1.41.4
Viscosity0.0018185 Pa*s0.00001222 lbm/ft-s
Relative humidity50%50%
Barometric Pressure101325 Pa29.92 in.Hg