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| Home > Quality Standards > Particle Board |
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Raw Particle Board Quality Standard |
| Defects |
A |
B |
C |
Spots, Dirt & Similar
Surface Defects |
Not allowed |
Not allowed
|
Slight
|
| Break Mark or Crack |
Not allowed |
Not allowed |
Not allowed |
| Looseness |
Not allowed |
Not allowed |
Slight |
| Density Difference of 3 Plies |
Not allowed |
Not allowed |
Not allowed |
| Edge/Core Roughness |
Not allowed |
Not allowed |
Slight |
| Excess Sanding at Edge |
Not allowed |
Slight |
Slight |
| Surface Roughness |
Not allowed |
Not allowed |
Slight |
Scratches |
Not allowed
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Max. no. 1
Max. area 2 x 100 mm
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Slight |
Imprints |
Not allowed
|
Slight |
Slight |
Surface & Edge Defects |
Not allowed
|
Max. size 2 mm
|
Max. size 3 mm
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Other Defects |
Should not impair product aesthetics |
N.B. When a particular grade has been agreed for one face, the other face shall be considered acceptable provided that it meets grade C. |
Dimensional Tolerances
| Item |
Dimension |
Tolerance |
| Thickness (mm) |
< 9 |
+/- 0.30 |
| ≥ 9 |
+/- 0.50 |
| Width (mm) |
1220 |
+/- 0.50 |
| Length (mm) |
2440 |
+/- 1 |
| Cross Length (mm) |
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≤ 2 |
| Cross Length Warping (mm) |
|
≤ 4 |
| Length Warping (mm) |
For Particle Board with a thickness > 6, warping shall not exceed 1.0% of the length |
Physical and Mechanical Properties
| Item |
Parbicle Board Base |
| Moisture Content (%) |
8 - 12 |
| Adherence Test at the Core |
Maximum separation after boiling and stretching 25 mm |
| Adhesive Strength of the Veneer (MPa) |
≥ 0.50 |
N.B. Different specifications can be considered
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