Wide and frequent RH fluctuations influence the rate of mechanical decay.

Low RH (generally below 35%) can result in mechanical damage.High RH (generally over 65%) can result in mold, metal corrosion, and mechanical damage.At higher temperatures biological activity (insects, mold growth) increases.Lowering the T can improve preservation IF you also maintain an appropriate RH (determined by the dew point). This calculator uses the following temperature conversion rules: 1 ☌ 33.8 ☏. The temperature (air or dew point) can be specified in Celsius (☌), Fahrenheit (☏) or Kelvin (°K). To use, just enter a number in either one of the two dewpoint values, selecting appropriate units, or one of the four absolute values before pressing the calculate button. T air temperature considered to be in Celsius (☌). The Dew Point Calculator will inter convert between various units of measurement. Cool temperatures slow the rate of chemical decay. Td dew point temperature expressed in Celsius (☌).High temperatures (generally above 75☏/24☌) increase the rate of chemical reactions, which determines how fast or slow organic materials will decay or 'naturally age'.How do T, RH, and DP determine preservation quality? The T and DP will increase or decrease together The RH and DP will increase or decrease together See what combinations of T & RH are possible when you change the DP-the DP determines which temperature will give you which RH.Determine what the Dew Point in your space is – enter the T & RH and solve for DP.Change any of these variables and you will have a different environment. The user-friendly interface allows users to input values for dry-bulb, wet-bulb, and relative humidity and generates dew point, enthalpy, and specific volume, etc. Without humidification (the addition of moisture) or dehumidification (the removal of moisture), the indoor DP is the same as the outdoor DP.Įvery environment has exactly one combination of temperature (T), relative humidity (RH) and dew point (DP). Adicots Psychrometric Chart Calculator enables users to calculate various parameters related to the thermodynamic properties of air. Relative Humidity (RH): A measure of how saturated the air is with water vapor, the %RH determines the amount of water contained within collection objects.ĭew Point: A measure of the absolute amount of water in the air, the DP is the temperature at which the air cannot hold all the moisture in it and water condenses. Temperature (T): A measure of heat energy, expressed in degrees Fahrenheit (F) or Celsius (C).

Dew point calc