Glossary (with simplified description so laymen can more easily understand) (updated as needed):

RH = Relative humidity in % (invisible moisture in gaseous form, in case of fog this invisible moisture has condensed in the air). Sometimes also called ”Relative Water Vapor Content”.

MC = Moisture Content (or MR = Moisture Ratio) in %. For example in wood. The amount of water in the material in relation to the amount of dry material.

FSP = Fiber Saturation Point. This FSP corresponds to roughly 30% MC in most wood species. (The FSP may be roughly ±3% MC depending on the wood species, but 30% MC is the commonly-accepted average). be continued...


This article was updated on 14 February 2024