Official Journal of the Japan Wood Research Society
Table 1 Assessment of standard values (reference) in sound trees by different nondestructive techniques for tree hazard assessment
From: Detection of decay damage in iron-wood living trees by nondestructive techniques
Item | Methods | Evaluated parameter |
|---|---|---|
1 | Visual tree inspection | Tree inspection form |
2 | Stress wave device 2D tomogram | Transversal stress wave velocity (m/s) |
3 | Lateral impact vibration | Diameter × frequency (m Hz) |
4 | Increment borer | Visual observation of core |
5 | Fractometer | Crushing strength (green, MPa) |
6 | X-ray wood density profile | Density (air dried, g/cm3) |