oxidation Degree - an indicator of change of colour of wood under the influence of light. At small degree of oxidation wood does not darken, at average - wood under the influence of light darkens slightly, and at high - dimness will be considerable.
breed
Hardness of wood
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:
