| Size/Grade | Size/Grade | A+ | A | B | C | D+ | D | E |
|---|---|---|---|---|---|---|---|---|
| Mesh | Micron | 1700-850 | 1400-600 | 850-425 | 600-250 | 425-180 | 300-180 | 180-125 |
| Retained | Retained | % | % | % | % | % | % | % |
| 12 | 1700 | <03 | 0 | |||||
| 14 | 1400 | 10-21 | <03 | |||||
| 18 | 1000 | 70-85 | 10-25 | 0 | ||||
| 20 | 850 | 0-7 | 30-45 | <03 | 0 | |||
| 25 | 710 | <03 | 30-50 | 2-10 | <01 | |||
| 30 | 600 | 02-10 | 30-45 | 02-05 | 0 | |||
| 40 | 425 | <03 | 40-60 | 05-20 | <0.20 | 0 | ||
| 45 | 355 | <07 | 15-40 | - | <02 | |||
| 50 | 300 | 45-60 | 20-35 | 04-12 | <0.10 | |||
| 60 | 250 | 00-05 | 40-55 | 20-35 | <0.30 | |||
| 70 | 212 | <01 | - | 30-45 | 02-05 | |||
| 80 | 180 | 15-30 | 10-25 | 10-25 | ||||
| 100 | 150 | 00-05 | 4-10 | 15-50 | ||||
| 120 | 125 | <01 | <05 | 5-10 | ||||
| 140 | 106 | 02-04 | ||||||
| 170 | 090 | <0.50 |