Comparative Particle Size |
|||
| U.S. Mesh | Inches | Microns | |
| 3 | 0.265 | 6730 | |
| 3 1/2 | 0.223 | 5660 | |
| 4 | 0.187 | 4760 | |
| 5 | 0.157 | 4000 | |
| 6 | 0.132 | 3360 | |
| 7 | 0.111 | 2830 | |
| 8 | 0.0937 | 2380 | |
| 9 | 0.0787 | 2000 | |
| 10 | 0.0661 | 1880 | |
| 12 | 0.0555 | 1410 | |
| 14 | 0.0469 | 1190 | |
| 18 | 0.0394 | 1000 | |
| 20 | 0.0331 | 841 | |
| 25 | 0.0280 | 707 | |
| 30 | 0.0232 | 595 | |
| 35 | 0.0197 | 500 | |
| 40 | 0.0105 | 420 | |
| 45 | 0.0138 | 354 | |
| 50 | 0.0017 | 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 | 63 | |
| 270 | 0.0021 | 53 | |
| 325 | 0.0017 | 44 | |
| 400 | 0.0015 | 37 | |
| 550 | 0.0009 | 25 | |
| 800 | 0.0006 | 15 | |
| 1250 | 0.0004 | 10 | |