For each breed of wood its operational indicators are resulted, namely:
• Hardness - an indicator of service life of the top (useful) layer of wood. At low hardness the useful layer of wood wears out faster, at average - more slowly, at high - very slowly.
• Stability and degree usadki - very important indicators which are necessary for knowing for this purpose:
First, to use various breeds of wood in an art parquet, in incrustations etc. For sharing of various breeds of wood it is necessary, that their stability and degree usadki coincided. Use of breeds with different indicators is undesirable and can lead to defects in the form of cracks, cracks etc.
Secondly, to define, whether the given breed of wood for operation in those or other conditions is how much suitable. At low stability and high degree usadki breeds the climate control for maintenance of stable humidity (45-60 %) and temperatures (20-22 degrees of Celsius) indoors, irrespective of a season is obligatory. At average stability and average degree usadki - the climate control is desirable, but is not obligatory. At high stability and low usadke - the climate control is not necessary. It is desirable, that indoors within a year humidity of air was not below norm - 40 %.