| Test Item |
Unit |
Physical Property Standard |
| Density |
kg/m3 |
≥ 880 |
| Moisture content |
% |
6±1 |
| 24hr thickness swelling in 20℃ |
% |
Center≤1 |
| Edge ≤12 |
| Surface Soundness |
Mpa |
≥ 30 |
| Elastic Modulus |
Mpa |
≥ 3000 |
| Internal Bonding strength |
Mpa |
≥1.0 |
| Surface Soundness |
Mpa |
≥1.0 |
| Thickness Tolerance |
mm |
8±0.30 |
| Length Tolerance |
mm |
'+3, -3 |
| Width Tolerance |
mm |
±0.3 |
| Formaldehyde Emission |
mg/liter |
≤1.5 |
| Level difference between board |
mm |
≤ 0.1 |
| Angle difference(90degree) |
mm |
≤ 0.15 |
| Banana effect |
mm |
≤ 0.15 |
| Color difference |
mm |
no difference |
| Bending |
Concave (U)凹 |
length ≤ 0.50%, width ≤ 0.15% |
| Convex (∩)凸 |
length ≤ 1.00%, width ≤ 0.2% |
| Bitten the cutting surface |
mm/pcs |
≤ 0.5mm / 5pcs/floor |
| Abrasion Test |
cycle |
≥ 4000(AC3) |
| Weight of Overlay |
gsm |
45(AC3) |
