Mix No. | Charge (coul) | Charge range | Cl− permeability |
1 | 6200 | 6200< | High |
2 | 3850 | 3500 - 6000 | Moderate |
3 | 2230 | 2000 - 3500 | Low |
4 | 1100 | 400 - 2000 | Very low |
5 | 900 | 400 - 2000 | Very low |