Drying Agents Particle Size
Often the particle size of the drying agent is described in terms of mesh size. To better understand the relationship between mesh and millimeters, refer to the chart below. (Example: a desiccant particle with a mesh size of 12 will pass through a sieve with openings spaced at 1.68 mm apart.)
| Sieve Opening (mm) | ASTM Mesh |
|---|
| 0.037 |
400 |
| 0.044 |
325 |
| 0.063 |
270 |
| 0.062 |
230 |
| 0.074 |
200 |
| 0.088 |
170 |
| 0.105 |
140 |
| 0.125 |
120 |
| 0.149 |
100 |
| 0.177 |
80 |
| 0.210 |
70 |
| 0.250 |
50 |
| 0.354 |
45 |
| 0.420 |
40 |
| 0.500 |
35 |
| 0.595 |
30 |
| 0.707 |
25 |
| 0.841 |
20 |
| 1.000 |
18 |
| 1.190 |
16 |
| 1.410 |
14 |
| 1.680 |
12 |
| 2.000 |
10 |
