Description Items
Quality Requirements
Flat Laminating(FL)
Flat Tempered(FT)
Thickness
Tolerance
2.7mm
2.55-2.85
--------
3.0mm
2.70-3.00
3.2mm
3.05-3.35
4.0mm
3.80-4.20
5.0mm
4.70-5.00
6.0mm
5.80-6.20
8-10-12mm
± 0.3
15-19mm
± 0.4
Edge Thickness Differential
2.7-6.0mm
8.0-12.0mm
Max0.10mm in 100 mm
≤1.0mm/m
≤2.0mm/m
≤1.5mm/m
Edge
Quality
2.7-6.0
Flake: ≤3MM
Flare/Bevel: ≤3MM
Corners: ≤4MM
8.0-12.0
Flake: ≤6MM
Flare/Bevel: ≤4MM
Flare/Bevel: ≤6MM
Corners: ≤6MM
Corners: ≤10MM
15.0-19.0
Flake: ≤12MM
Flare/Bevel: ≤12MM
Corners: ≤25MM
Over Score & Cutter Drag
None allowed
≤2000mm
>2000mm
± 2mm
± 3mm
± 4mm
± 6mm
Squareness
For all thicknesses
Diagonal measurement difference/2 ≤0.2% the diagonal length
Linear
Flaws
Scratch, Roll Scuff, Roll Mark, Stringer,
No flaws visible at 2 meters when viewed under fluorescent light
No flaws visible at 1 meter when viewed under fluorescent light
≤Grade 2.0
Non-
Continuous
Defects
Defect Size(d)
No. allowed per square meter
d ≤1.0mm
allowed
1.0<d ≤1.5mm
1
d>1.5mm
None
Optical Distortion
Zebra ≥45 °