Psychrometric Properties: STD ATM
10.0 10 to 10.0 90
Psychrometric properties of moist air — humidity ratio, enthalpy, dew point, wet-bulb temperature, and specific volume as functions of dry-bulb temperature and relative humidity; also includes saturation thermodynamic and transport properties (viscosity, thermal conductivity, Prandtl number, density) from ASHRAE 2021 tabulated data
| pressure condition | lookup key | dew point C (C) | dry bulb C (C) | enthalpy kJ kg (kJ/kg) | humidity ratio kg kg (kg/kg) | relative humidity pct (%) | specific volume m3 kg (m3/kg) | standard | wet bulb C (C) |
|---|---|---|---|---|---|---|---|---|---|
| STD ATM | 10.0 10 | -20.28 | 10 | 11.961 | 0.000755 | 10 | 0.8031 | ASHRAE Fundamentals 2017 Ch.1 | 1.18 |
| STD ATM | 10.0 100 | 10.02 | 10 | 29.285 | 0.00763 | 100 | 0.812 | ASHRAE Fundamentals 2017 Ch.1 | 9.94 |
| STD ATM | 10.0 20 | -11.95 | 10 | 13.868 | 0.001511 | 20 | 0.8041 | ASHRAE Fundamentals 2017 Ch.1 | 2.29 |
| STD ATM | 10.0 30 | -6.78 | 10 | 15.778 | 0.00227 | 30 | 0.8051 | ASHRAE Fundamentals 2017 Ch.1 | 3.26 |
| STD ATM | 10.0 40 | -2.97 | 10 | 17.694 | 0.00303 | 40 | 0.806 | ASHRAE Fundamentals 2017 Ch.1 | 4.19 |
| STD ATM | 10.0 50 | 0.07 | 10 | 19.614 | 0.003792 | 50 | 0.807 | ASHRAE Fundamentals 2017 Ch.1 | 5.1 |
| STD ATM | 10.0 60 | 2.61 | 10 | 21.538 | 0.004556 | 60 | 0.808 | ASHRAE Fundamentals 2017 Ch.1 | 6.02 |
| STD ATM | 10.0 70 | 4.8 | 10 | 23.468 | 0.005321 | 70 | 0.809 | ASHRAE Fundamentals 2017 Ch.1 | 6.96 |
| STD ATM | 10.0 80 | 6.73 | 10 | 25.402 | 0.006089 | 80 | 0.81 | ASHRAE Fundamentals 2017 Ch.1 | 7.93 |
| STD ATM | 10.0 90 | 8.46 | 10 | 27.341 | 0.006859 | 90 | 0.811 | ASHRAE Fundamentals 2017 Ch.1 | 8.92 |
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