|
Criteria |
Quality classes |
|
|
A/B |
Defective log |
|
|
Length in metres (3.6; 4.2; 5.1; 6.0 m) |
3.6 - 6.0 |
3.6 - 6.0 |
|
Over measure (min. + 10 cm, max + 25 cm) |
10 cm |
10 cm |
|
Minimum diameter of thinner end in cm (log 4.0 -6.0 m) |
14 cm |
14 cm |
|
Maximum diameter of thinner end in cm (log 3.0 m) |
45 cm |
45 cm |
|
Maximum diameter of thinner end in cm (log 3.0 m) |
35 cm |
35 cm |
|
Maximum allowed curvature per cm/m |
< 1.5 cm/m |
> 1.5 cm/m |
|
Maximum allowed diameter of branch in cm |
< 8 cm |
> 8 cm |
|
Colour defects/blue stains |
Not allowed |
Allowed |
|
Hard and soft rot |
Not allowed |
Hard rot allowed |
|
Curvature, distortion, other deformations |
Not allowed |
Surface cracks allowed |
|
Radioactivity, chemical pollution, carbonised parts, foreign objects and particles, etc |
Not allowed |
Not allowed |
|
Metal/foreign objects |
Not allowed |
Not allowed |
|
Cracks (frost and drying cracks, etc) |
Not allowed |
Not allowed |
|
Wood damage (e.g. breakage, storm and felling damages, big resin pockets, branching, soft rot, etc) |
Not allowed |
Not allowed |
|
Bark beetle |
Not allowed |
Not allowed |
For explanation:
- Receipt of material has to be accompanied by a document certifying the origin or a conveyance document.
- Defective logs are returned to the seller or purchased at previously agreed price.
- Dirty and muddy logs are considered as defective logs.
