Complaint
Dimension Standard
| No | Items | Inspection Standard | |
| 1 | Thickness Tolerance | 1.6mm | (-0.15,+0.25) mm |
| 1.8mm | (-0.15,+0.25) mm | ||
| 2.0mm | (-0.15,+0.25) mm | ||
| 3.2mm | ± 0.20mm | ||
| 2 | Dimension Tolerance | length≤500mm | ±1.0 |
| length>500mm | ±1.5 | ||
| 3 | Diagonal Tolerance | Shouldn't over 0.15% of the mean value or 3mm | |
| 4 | Curvature | Macro Curvature | ≤0.2%(T≥3.0mm) ≤0.4%(T<3.0mm) |
| Micro Curvature | ≤0.3mm/300mm(T≥3.0mm) ≤0.5mm/300mm(T<3.0mm) (not include 25mmfromedge) | ||
| 5 | Edging | C shape edge;edging depth:1-3mm | |
| 6 | Chamfering | Hypotenuse length:1-4mm | |
| 7 | Roughness | 0.2µm≤Ra≤1.2µm | |
| 8 | Pattern Depth | 15µm≤PD≤90µm | |
| 9 | Hole Position Tolerance | ±1.0mm | |
| 10 | Hole Diameter Tolerance | ±1.0mm | |
| Chemical composition | SiO2 | Al2O3 | Na 2O+K 2O | CaO | Fe 2O3 | Sb 2O3 | CeO | As2O3 |
| Proportion | 70~74% | ≤2% | ≤15% | ≤11% | ≤150ppm | ≤0.5% | N.D. | N.D. |
