| Mechanical Properties |
Test Method |
Unit | ≥ 2.5 – 4.0 |
> 4.0 – 6.0 |
> 6.0 – 9.0 |
> 9.0 – 12.0 |
> 12.0 – 19.0 |
> 19.0 – 30.0 |
|---|---|---|---|---|---|---|---|---|
| Thickness tolerance | BS EN 324-1 |
mm | ±0.2 | |||||
| Size tolerance (length & width) |
BS EN 324-1 |
mm | a) within 5mm (length) & within 2mm (width) for free trim panel b) +2 mm (width) and + 5mm (length) for nett size panel |
|||||
| Squareness | BS EN 324-2 |
mm/m | <1.5 | |||||
| Squareness (diagonal) |
BS EN 324-2 |
mm | < 5 | |||||
| Average density | BS EN 323 |
kg/㎥ | 800-860 | 780-840 | 760-800 | 720-760 | 700-740 | 650-690 |
| Board moisture | BS EN 322 |
% | 5-8 | |||||
| Modulus of Rupture | BS EN 310 |
N/㎟ Ave |
23 | 23 | 23 | 22 | 20 | 18 |
| Modulus of elasticity in bending |
BS EN 310 |
N/㎟ Ave |
NA | 2700 | 2700 | 2500 | 2200 | 2100 |
| Internal bond (dry) | BS EN 319 |
N/㎟ Ave |
0.65 | 0.65 | 0.65 | 0.60 | 0.55 | 0.55 |
| Screw holding Face | BS EN 320 |
N/㎟ Ave |
NA | NA | NA | NA | 1050 | 1000 |
| Screw holding Edge | BS EN 320 |
N Ave |
NA | NA | NA | NA | 850 | 700 |
| Thickness swelling (24hr) |
BS EN 317 |
% Max |
35 | 30 | 17 | 15 | 12 | 10 |
<Formaldehyde Emission of Fibreboard>
| Properties | Test Method / Unit |
Classification | MDF | MDF LF |
MDF LG |
MDF MR |
MFB |
|---|---|---|---|---|---|---|---|
| Desiccators Method | JIS A 1460 mg/L |
F**** Ave ≤ 0.3 Max ≤0.4 |
|||||
| F***(E0) Ave ≤ 0.5 Max ≤0.7 |
√ | √ | √ | √ | √ | ||
| F** Ave ≤1.5. Max ≤2.1 |
√ | √ | √ | √ | √ | ||
| CARB (Small Chamber Method) |
ASTM D 6007 ppm |
Phase 2 MDF Thin Board < 8mm < 0.13 |
√ | √ | √ | √ | √ |
| Phase 2 MDF Thick Board > 8.1mm < 0.11 |
√ | √ | √ | √ | √ |
– NOTES :The perforator values in this table apply to panels with moisture contents of 6.5%