| Station 1 Methyl violet | |
| Station 2 Thymol blue | |
| Station 3 Bromphenol blue | |
| Station 4 Methyl orange | |
| Station 5 Methyl red | |
| Station 6 Bromothymol blue | |
| Station 7 Phenol Red | |
| Station 8 Thymol blue | |
| Station 9 Phenolphthalein | |
| Station 10 Thymolphthalein | |
| Station 11 Alizarin yellow R | |
| Station 12 Indigo carmine | |
| Station 13 Universal |