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From [Institution name]
Property | Unit | Requirement | ||
---|---|---|---|---|
12.7-mm-thick board | 15.9-mm-thick board | |||
Flexural strength bearing edges perpendicular to the substrate edge |
N | ≥ 445 | ≥ 623 | |
Flexural strength bearing edges parallel to the substrate edge | N | ≥ 356 | ≥ 445 | |
Humidified deflection | mm | ≤ 6 | ≤ 3 | |
Core, end and edge hardness | N | ≥ 67 | ≥ 67 | |
Nail pull resistance | N | ≥ 356 | ≥ 400 | |
Water resistance | n/a | ≤ 10 weight % after 2-h immersion | ≤ 10 weight % after 2-h immersion | |
Thickness | mm | 12.7 ± 0.8 nominal thickness with local variations of ± 1.6 | 15.9 ± 0.8 nominal thickness with local variations of ± 1.6 | |
Width | mm | up to 1 220 ± 3 | up to 1 220 ± 3 | |
Length | mm | 1 840 ± 6 to 3 660 ± 6 | 1 840 ± 6 to 3 660 ± 6 | |
End squareness | n/a | Square ± 3 mm in the full width of the substrate | Square ± 3 mm in the full width of the substrate | |
edges and ends | n/a | Straight and either square, bevelled, featured, tapered, or featured and tapered | Straight and either square, bevelled, featured, tapered, or featured and tapered | |
Finish and appearance | n/a | Free of any cracks or imperfections that would render it unfit for its designed use | Free of any cracks or imperfections that would render it unfit for its designed use |