|
MECHANICAL CHARACTERISTICS OF THE COMMONLY USED RAW BOARDS |
|
Technical Characteristics
|
Methodological Standards
|
Unit of
Measure
|
Thickness (mm) |
|
6-9 |
>9-12 |
>12-19 |
>19-30 |
>30-45 |
50
|
|
Tensile Strenght Resistance |
EN 319 |
N/mm2 |
0.65 |
1.24 |
0.65 |
1.1 |
0.6 |
0.9 |
0.6 |
0.92 |
0.55 |
0.78 |
0.5 |
0.68 |
|
Bending Strenght Resistance |
EN 310 |
N/mm2 |
23 |
35.8 |
22 |
35.1 |
20 |
31.9 |
18 |
27.8 |
17 |
26.1 |
15 |
24.5 |
|
Modulus of Elasticity |
EN 310 |
N/mm2 |
2700 |
3150 |
2500 |
3180 |
2200 |
3057 |
2100 |
2750 |
1900 |
2650 |
1700 |
2797 |
|
Swelling in Thickness after 24h. of Immersion in Water |
EN 317 |
% |
17 |
13.6 |
15 |
12.3 |
12 |
8.6 |
10 |
7.8 |
8 |
6.2 |
6 |
5.2 |
Resistance of Axial Withdraw of Screws
from the face
from the edge |
EN 320
EN 320 |
N
N |
|
|
|
|
1000
800 |
2338
1404 |
1000
750 |
2079
1261 |
1000
700 |
2627
1201 |
1000
700 |
1000
800 |
|
Surface Soundness |
EN 311 |
N/mm2 |
1.2 |
2.2 |
1.2 |
1.8 |
1.2 |
2.2 |
1.2 |
2.4 |
1.2 |
2.4 |
1.2 |
|
|
Toulene Surface Absorption |
EN 382-1 |
mm |
150 |
188 |
150 |
210 |
150 |
243 |
150 |
250 |
150 |
250 |
150 |
259 |
|
Density |
EN 323 |
Kg/m3 |
800 +/- 5% |
780 +/- 5% |
760 +/- 5% |
730 +/- 5% |
730 +/- 5% |
720 +/- 5% |
|
Thickness Tolerance |
EN 324-1 |
mm |
+/- 0.2 |
|
Lenght and Width Tolerance |
EN 324-1 |
mm/m |
+/- 2.0 absolute maximum +/- 5.0 mm |
|
Squareness Tolerance |
EN 324-2 |
mm/m |
+- 2.0 |
|
Moisture Content |
EN 322 |
% |
+4 - 11 |
|
Silica Content |
ISO 3340 |
% |
>= 0.05 |
|
Formaldehyde Content |
EN120 |
mg/100g |
<= 8 |
