Non-Added Formaldehyde (NAF)
Board Specification
Boards for interior fitments (including furniture) for use in dry conditions – requirements for specified mechanical properties.
| Properties | Standard | Thickness (mm) |
|---|---|---|
| 18mm | ||
| Requirement | ||
| Bending Strength (N/mm²) | HeveaBoard | > 15.0 |
| Internal Bond (N/mm²) | HeveaBoard | > 0.45 |
| Screw Holding Edge (N) | GB/T 4897.1-2003 | > 600 |
| Screw Holding Edge (N) | GB/T 4897.1-2003 | > 900 |
| Surface Soundness (N/mm²) | EN 312 | > 0.8 |
| 2-Hour Thickness Swelling (%)(1) | HeveaBoard | ≤ 2 |
| 24-Hour Thickness Swelling (%)(1) | HeveaBoard | ≤ 10 |
| Moisture Content (%) | EN 312 | 5 – 13 |
Note: Standard reference – Particleboards – Specifications, EN 312:2010 (Type P2 board).
(1) 24-hour thickness swelling applies to HMR products only, excluding the V313 test.
Board Specification: Formaldehyde Emission Release
| Formaldehyde Emission Class | Requirement |
|---|---|
| According to EN Standard | Content ≤ 0.8 mg/100 g oven-dry board |
| According to JIS Standard | Max: ≤ 0.1 mg/L |
