Filtering Level | Filtering Percision | Maximum Aperture/μm | Permeabili ty/h.m2.kpa | Thickness/mm | Compressive strength Mpa/cm2 |
S9 | 0.2 | 2.5 | 1.0 | 3 | 3.0 |
S8 | 0.5 | 4 | 3 | 3 | 3.0 |
S7 | 1.5 | 6 | 5 | 3 | 3.0 |
S6 | 2.5 | 10 | 10 | 3 | 3.0 |
S5 | 5 | 15 | 40 | 3 | 3.0 |
8 | 20 | 80 | 3 | 3.0 | |
S4 | 10 | 30 | 160 | 3 | 3.0 |
S3 | 28 | 60 | 350 | 3 | 3.0 |
S2 | 40 | 100 | 700 | 3 | 3.0 |
S1 | 65 | 160 | 1000 | 3 | 3.0 |