過濾精度
目數 / 吋 / μm的換算表
| 目 | 吋 | μm |
| 12 | 0.0661 | 1680 |
| 16 | 0.0469 | 1190 |
| 20 | 0.0311 | 840 |
| 25 | 0.0280 | 710 |
| 30 | 0.0232 | 590 |
| 35 | 0.0197 | 500 |
| 40 | 0.0165 | 420 |
| 45 | 0.0138 | 350 |
| 50 | 0.0117 | 297 |
| 60 | 0.0098 | 250 |
| 70 | 0.0083 | 210 |
| 80 | 0.0070 | 177 |
| 100 | 0.0059 | 149 |
| 120 | 0.0049 | 125 |
| 140 | 0.0041 | 105 |
| 170 | 0.0035 | 88 |
| 200 | 0.0029 | 74 |
| 230 | 0.0024 | 62 |
| 300 | 0.0020 | 50 |
| 325 | 0.0017 | 44 |
| 0.0016 | 40 | |
| 400 | 0.00142 | 36 |
| 0.0099 | 25 | |
| 0.0079 | 20 | |
| 0.00349 | 10 | |
| 0.00315 | 8 | |
| 0.00197 | 5 | |
| 0.00118 | 3 | |
| 0.000787 | 2 | |
| 0.000394 | 1 |