N˚ | Quantity of bleu add in mL | Duration of agitation in mn | Test + | Test − |
1 | 2 | 5 |
| − |
2 | 2 | 3 |
| − |
3 | 2 | 3 |
| − |
4 | 2 | 3 |
| − |
5 | 2 | 3 | + |
|
6 | 2 | 3 | + |
|