NIANGON
| Origin: | Africa |
| Other names: | Whismore, Ogoue, Nyankom, Yami |
WOOD DESCRIPTION
| Color: | red brown |
| Sapwood: | clearly demarcated |
| Texture: | medium |
| Grain: | interlocked |
| Interlocked grain: | slight |
| Note: | Wood pink brown to purplish red brown, becoming bronze with age. Large and visible silver figure. Oily to the touch. |
NATURAL DURABILITY AND TREATABILITY
| Funghi (according to E.N. standards): | class 3 – moderately durable |
| Dry wood borers: | durable – sapwood demarcated (risk limited to sapwood) |
| Termites (according to E.N. standards): | class M – moderately durable |
| Treatability (according to E.N. standards): | class 4 – not permeable |
| Use class ensured by natural durability: | class 2 – inside or under cover (dampness possible) |
| Species covering the use class 5: | No |
| Note: | This species is listed in the European standard NF EN 350-2. The NIANGON cannot be used without appropriate preservative treatment for end-uses under use class 3, except for some parts of a work such as windows, less exposed than others (entrance doors, shutters, …) |