| PKS Bafang | PKS Tombel | |||
| Size | N˚ | D eff (cm2/s) Average value | N˚ | D eff (cm2/s) Average value |
| 12.5 To <16 | 1 | 8.76 × 10−5 | 1 | 4.94 × 10−4 |
| 2 | 2 | |||
| 3 | 3 | |||
| 4 | 4 | |||
| 5 | 5 | |||
| S ≥ 16 | 1 | 7.04 × 10−5 | 1 | 5.45 × 10−4 |
| 2 | 2 | |||
| 3 | 3 | |||
| 4 | 4 | |||
| 5 | 5 | |||
|
| Average | 7.90 × 10−5 | Average | 5.19 × 10−4 |