Time of Decolourisation

E9

E21

E23

E12

E19

0

0.811

0.741

0.714

0.709

0.704

2

0.630

0.610

0.596

0.639

0.699

4

0.608

0.648

0.626

0.558

0.618

6

0.608

0.575

0.565

0.593

0.635

8

0.551

0.560

0.554

0.551

0.608

10

0.550

0.543

0.582

0.548

0.546

12

0.515

0.543

0.477

0.428

0.698

24

0.308

0.343

0.252

0.153

0.686