Application instructions
25
Hydromette BL Compact TF 3
4.1.3
Relative air humidity
The relative air humidity is the ratio of the actual water vapour
content (absolute humidity) to the moisture saturation. The relative
humidity is heavily dependent on the temperature.
𝐻𝑢𝑚𝑖𝑑𝑖𝑡𝑦 (𝑟𝑒𝑙𝑎𝑡𝑖𝑣𝑒) =
ℎ𝑢𝑚𝑖𝑑𝑖𝑡𝑦 (𝑎𝑏𝑠𝑜𝑙𝑢𝑡𝑒) 𝑥 100 (%)
ℎ𝑢𝑚𝑖𝑑𝑖𝑡𝑦 (𝑠𝑎𝑡𝑢𝑟𝑎𝑡𝑖𝑜𝑛)
4.1.4
Equilibrium moisture content (EMC)
The device is able to display relative humidity, air temperature and
the equilibrium moisture content of wood simultaneously.
This makes it easier for parquet recliners and interior designers to
evaluate whether timber components can be exposed to the
existing climate, or whether damage such as cracking, shrinkage or
swelling is to be feared.
The equilibrium moisture content is the moisture content that wood
will finally reach when it is exposed to a constant climate (i.e.
constant humidity and constant temperature) long enough.
