NBN EN 1927-3:2008

This Standard specifies the qualitative classification for the roundwood of larches (Larix) and Douglas fir (Pseudotsuga). The classification is made either using Clauses 4 and 5 or using informative Annex A. Clauses 4 and 5 describe the qualitative classification of round timber for which the intended use is unknown.
Annex A gives a list of characteristics which serves as guideline for contracts describing qualities for round timber of larches and Douglas fir where the intended use is known.