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The formulas used for the conversions come from General Eastern (Wobum, MA, USA)

This information is believed to be reliable, but we don't make any warranty express or implied, as to its accuracy and assume no liability out of its use.

P : Total Pressure
Td : Dew/Frost Point Temperature
ppm : Moisture Volume Concentration
Ta : Ambiante Temperature
RH : Relative Humidty