equilibrium humidity

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• Equilibrium moisture content — The moisture content of wood below the fibre saturation point is a function of both relative humidity and temperature of surrounding air. The equilibrium moisture content (EMC) is the moisture content at which the wood is neither gaining nor… …   Wikipedia

• equilibrium — n condition reached in air drying in which change in weight of the sample, under conditions of ambient temperature and humidity, is no more than 0.1 %/h or 0.05 %/1⁄2 h. D3302 …   Coke&Coal Terminology

• Relative humidity — is a measurement of the amount of water vapor that exists in a gaseous mixture of air and water. Estimating relative humidity The relative humidity of an air water vapor mixture can be estimated if both the temperature ( T ) and the dew point… …   Wikipedia

• Chemical equilibrium — In a chemical reaction, chemical equilibrium is the state in which the concentrations of the reactants and products have not yet changed with time. It occurs only in reversible reactions, and not in irreversible reactions. Usually, this state… …   Wikipedia

• specific humidity — the ratio of the mass of water vapor in air to the total mass of the mixture of air and water vapor. Cf. mixing ratio, absolute humidity, dew point, relative humidity. * * * ▪ meteorology       mass of water vapour in a unit mass of moist air,… …   Universalium

• relative humidity —    The proportion of actual moisture in the air to the maximum amount possible at a specified temperature. It is stated as a percentage, with 100% being air fully saturated with water vapor. Control very important in art conservation because when …   Glossary of Art Terms

• Hygrometer — Not to be confused with hydrometer. A hygrometer (UK: /haɪˈɡrɒmɪtə/) is an instrument used for measuring the moisture content in the environmental air, or humidity. Most measurement devices usually rely on measurements of some other quantity …   Wikipedia

• Moisture sorption isotherm — At equilibrium, the relationship between water content and equilibrium humidity of a material can be displayed graphically by a curve, the so called moisture sorption isotherm. For each humidity value, a sorption isotherm indicates the… …   Wikipedia

• Wood drying — (also seasoning lumber or timber seasoning) refers to reducing the moisture content of wood prior to its use. For some purposes wood is not dried at all (it is used green ) [http://en.wikipedia.org/wiki/Green wood] . Often the wood needs to be in …   Wikipedia

• climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …   Universalium

• Vapor pressure — (also known as equilibrium vapor pressure or saturation vapor pressure ), is the pressure of a vapor in equilibrium with its non vapor phases. All liquids and solids have a tendency to evaporate to a gaseous form, and all gases have a tendency to …   Wikipedia