Thickness Tolerance Permission Of TT Acrylic Sheet
| SIZE | 100*200cm to 127*188cm | 122*244cm to 185*251cm | ||
| PERCENTAGE
THICKNESS |
MM | % | MM | % |
| 1.5mm | + 0.3 | 20 | - | - |
| 2mm | + 0.3 | 15 | - | - |
| 2.5mm | + 0.3 | 12 | - | - |
| 3mm | + 0.4 | 12 | + 0.55 | 18 |
| 4mm | + 0.4 | 10 | + 0.5 | 12.5 |
| 4.5mm | + 0.5 | 10 | + 0.6 | 13 |
| 5mm | + 0.5 | 10 | + 0.6 | 12 |
| 6mm | + 0.6 | 10 | + 0.7 | 12 |
| 6.4mm | + 0.6 | 10 | + 0.7 | 11 |
| 8mm | + 0.8 | 10 | + 0.9 | 11 |
| 10mm | + 1.0 | 10 | + 1.1 | 11 |
| 12mm | + 1.0 | 8 | + 1.0 | 8 |
| 13mm | + 1.0 | 8 | + 1.0 | 8 |
| 15mm | + 1.2 | 8 | + 1.2 | 8 |
| 16mm | + 1.3 | 8 | + 1.3 | 8 |
| 18mm | + 1.3 | 7 | + 1.3 | 7 |
| 20mm | + 1.3 | 7 | + 1.3 | 7 |
| 25mm | + 1.3 | 5 | + 1.3 | 5 |
| 30mm | + 1.5 | 5 | + 1.5 | |
| 38mm | + 1.9 | 5 | + 1.9 | |
| 44mm | + 2.2 | 5 | + 2.2 | |
| 50mm | + 2.5 | 5 | + 2.5 | |
TOLERANCE ON LENGTH AND WIDTH OF TACHYGEM CASTING ACRYLIC SHEETS
| LENGTH OR WIDTH (mm) | TOLERANCE (mm) |
| UNDER 1,000 | 0 ~ +3 |
| FROM 1,000 TO 2,000 | 0 ~ +6 |
| FROM 2,001 TO 3,000 | 0 ~ +9 |
CLASSIFICATION OF DEFECTS
| CLASSIFICATION | SURFACE DEFECTS | INCLUSION DEFECTS |
| NEGLIGIBLE | LESS THAN 1mm2 | LESS THAN 1mm2 |
| ACCEPTABLE | 1 TO 3mm2 | 1 TO 3mm2 |