| friction coefficient/content % | |||||||
| Contents % | 5 N | Contents % | 7 N | contents % | 9 N | contents % | 11 N |
| 0 | 1.16667 | 0 | 0.78333 | 0 | 0.73889 | 0 | 0.80556 |
| 3 | 1.13333 | 3 | 0.75833 | 3 | 0.68333 | 3 | 0.75556 |
| 6 | 1.13333 | 6 | 0.75 | 6 | 0.67222 | 6 | 0.75 |
| 9 | 1.13333 | 9 | 0.61667 | 9 | 0.65556 | 9 | 0.72222 |
| 12 | 1.08333 | 12 | 0.58333 | 12 | 0.55 | 12 | 0.66667 |
| 15 | 1.11667 | 15 | 0.65 | 15 | 0.51111 | 15 | 0.68333 |
| 18 | 1.13333 | 18 | 0.68333 | 18 | 0.57222 | 18 | 0.72778 |
| 21 | 0.75 | 21 | 0.7 | 21 | 0.62778 | 21 | 0.71111 |
| 24 | 0.66667 | 24 | 0.55 | 24 | 0.68333 | 24 | 0.75 |
| 27 | 0.65 | 27 | 0.51667 | 27 | 0.57222 | 27 | 0.62778 |
| 30 | 0.66667 | 30 | 0.58333 | 30 | 0.65 | 30 | 0.68333 |