Microns are used for International Standard measurements.
2000 microns = 2 millimetres = approximately 1/12 inch.
| Aperture in Microns | UK Mesh Number | USA Mesh Number | Canada Mesh Number | Germany Mesh Number | Size/Appearance |
|---|---|---|---|---|---|
| 2000 | 8 | 10 | 10 | - | En Tous Cas |
| 1000 | 16 | 18 | 18 | 6 | Eye of Needle 1230 microns |
| 500 | 30 | 35 | 35 | 12 | Builders Sand |
| 355 | 44 | 45 | 45 | - | |
| 250 | 60 | 60 | 60 | 24 | Fine Sand |
| 180 | 85 | 80 | 80 | - | |
| 150 | 100 | 100 | 100 | 40 | |
| 125 | 120 | 120 | 120 | - | Fine Beach Sand |
| 90 | 170 | 170 | 170 | - | |
| 75 | 200 | 200 | 200 | 80 | Cement |
| 63 | 240 | 230 | 230 | - | |
| 53 | 300 | 270 | 270 | 110 | Tooth paste |
| 45 | 350 | 325 | 325 | - | Talc |