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absolute humidity
The ratio of the mass of water vapor to the volume occupied by a mixture of water vapor and dry air; it is measured in in grams of water vapour per cubic meter of air. Conversion to relative humidity (RH) can only be made when the temperature is known. For instance 15 g/m3 at 17.5°C equals 100% RH, while at 25°C it equals 65% RH, and at 30°C it equals 50% RH. Related categories • HUMIDITY AND MOISTURE CONTROL Also on this site: Encyclopedia of Science Transport Concepts & Designs (partner site) |