Sieve (mm) | Strainer ΙΈ mm | Module AFNOR | Improved Djiri sand | Improved Mfilou sand | Improved Congo River sand |
5 | 6.3 | 38 | 100 | 100 | 100 |
2.5 | 3.15 | 35 | 91 | 99 | 87 |
1.25 | 1.6 | 32 | 80 | 79 | 78 |
0.63 | 0.8 | 29 | 70 | 70 | 69 |
0.315 | 0.40 | 26 | 48 | 53 | 46 |
0.1 | 0.200 | 23 | 21 | 24 | 8 |
0.08 | 0.1 | 20 | 4 | 4 | 1 |