SL NO. | Tests Method | ISI requirements | Observed Values |
---|---|---|---|
1 | Dimension Squareness | Length :+ 6 mm Width :+ 3 mm Thicknes : +/- 0.5 mm Max : 0.2% |
Length- 2441 Width- 1221 Thickness- 18 mm Squareness - 0.18 |
2 | Moisture content | Moisture content should not be less than 5% and not more than 15% | 7.5% |
3 | Glue Adhesion in (a)Dry State (b)Wet Strength |
Minmum Individual: 1100 Avg.: 1350 N Minm Individual: 800 NAvg.: 1000 N |
1230 N 1440 N 870 N 1080 N |
(c) Adhesion of Plies | Bond shall show minimum Pass Standard, Poor or Excellent |
Satisfactory | |
4 | Tensile Strength (a) Along the grain |
Should not less then 42 N/mm2 |
45.6 N/mm2 |
(b) Across the grain | Should not be less than 25 N/mm2 | 30 N/mm2 | |
5 | Glue Adhesion & Water Resistance Test (cyclic test followed by knife test: A cycle of 8 hrs. submerged at 60℃ +/-2 ℃ and 8 hrs. drying at 65℃ +/- 2 ℃) |
After 3 cycles |
Satisfactory |
6 | Modulus of Elasticity (a) Along the grains of the face Veneer |
Average: 4000 N/mm2 Min. lndividual-3600 N/mm2 |
3780 N/mm2 4355 N/mm2 |
(b) Across the grain of the Face Veneer | Average: 2000 N/mm2 Min. lndividual-1800 N/mm2 |
2040 N/mm2 2190 N/mm2 |
|
7 | Modulus of Rapture (a) Along the grains of the face Veneer |
Average: 30 N/mm2 Min. Individual-27 N/mm2 |
34 N/mm2 29 N/mm2 |
(b) Across the grains of the Face Veneer | Average: 15 N/mm2 Min. Individual-13 |
18 N/mm2 13.9 N/mm2 |
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