Table 2.

Classification of heartwood content from pine chips and bark content from birch chips: material classes according to the content percentages and moisture content range of each class.

Material Test	Class 1	Class 1 MC-Range (%)	Class 2	Class 2 MC-Range (%)
Pine100	heartwood	0–24	sapwood	0–58
Pine75	heartwood 75–100%	0–31	Sapwood 75–100%	0–58
Birch100	birch bark	0–58	birch wood	0–46
Birch 75	birch bark 75–100%	0–58	birch wood 75–100%	0–48