Item | Methods | Evaluated parameter |
---|---|---|
1 | Visual tree inspection | Tree inspection form |
2 | Acoustic device 2D tomogram | Transversal acoustic velocity (m/sec) |
3 | Lateral impact vibration | Diameter × frequency (m · Hz) |
4 | Drilling resistance method | Drilling resistance value (%) |
5 | Increment borer | Visual observation of core |
6 | Fractometer | Crushing strength (green, kgf/cm2) |
7 | X-ray wood density profile | Density (air dried, g/cm3) |