Table 4 Rideal-walker phenol coefficient test
Min | 2.5 | 5 | 7.5 | 10 | Min | 2.5 | 5 | 7.5 | 10 | Min | 2.5 | 5 | 7.5 | 10 | Min | 2.5 | 5 | 7.5 | 10 | Min | 2.5 | 5 | 7.5 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dilution | Dilution | Dilution | Dilution | Dilution | Â | Â | Â | Â | ||||||||||||||||
phenol | phenol | phenol | phenol | phenol | ||||||||||||||||||||
1/90 | – | – | – | – | 1/90 | – | – | – | – | 1/90 | – | – | – | – | 1/90 | – | – | – | – | 1/90 | – | – | – | – |
1/95 | – | – | – | – | 1/95 | – | – | – | – | 1/95 | – | – | – | – | 1/95 | – | – | – | – | 1/95 | – | – | – | – |
1/100 | – | – | – | – | 1/100 | – | – | – | – | 1/100 | – | – | – | – | 1/100 | – | – | – | – | 1/100 | – | – | – | – |
1/105 | + | + | – | – | 1/105 | + | + | – | – | 1/105 | + | + | – | – | 1/105 | + | + | – | – | 1/105 | + | + | – | – |
1/110 | + | + | + | + | 1/110 | + | + | + | + | 1/110 | + | + | + | + | 1/110 | + | + | + | + | 1/110 | + | + | + | + |
1/115 | + | + | + | + | 1/115 | + | + | + | + | 1/115 | + | + | + | + | 1/115 | + | + | + | + | 1/115 | + | + | + | + |
Ethyl alcohol 70% | Sodium hypochlorite 5% | Sayasept-HP 2% | Chlorhexidine 2% | Dettol 4.8% | ||||||||||||||||||||
1/2 | + | – | – | – | 1/2 | – | – | – | – | 1/2 | – | – | – | – | 1/2 | – | – | – | – | 1/2 | – | – | – | – |
1/4 | + | + | – | – | 1/4 | – | – | – | – | 1/4 | – | – | – | – | 1/4 | – | – | – | – | 1/4 | – | – | – | – |
1/8 | + | + | + | – | 1/8 | – | – | – | – | 1/8 | – | – | – | – | 1/8 | – | – | – | – | 1/8 | – | – | – | – |
1/16 | + | + | + | + | 1/16 | – | – | – | – | 1/16 | + | + | – | – | 16-Jan | – | – | – | – | 1/16 | – | – | – | – |
1/32 | + | + | + | + | 1/32 | – | – | – | – | 1/32 | + | + | + | – | 1/32 | + | – | – | – | 1/32 | + | – | – | – |
1/64 | + | + | + | + | 1/64 | – | – | – | – | 1/64 | + | + | + | – | 1/64 | + | + | – | – | 1/64 | + | + | – | – |
1/128 | + | + | + | + | 1/128 | – | – | – | – | 1/128 | + | + | + | – | 1/128 | + | + | + | – | 1/128 | + | + | + | – |
1/256 | + | + | + | + | 1/256 | + | – | – | – | 1/256 | + | + | + | + | 1/256 | + | + | + | – | 1/256 | + | + | + | – |
1/512 | + | + | + | + | 1/512 | + | + | – | – | 1/512 | + | + | + | + | 1/512 | + | + | + | + | 1/512 | + | + | + | + |
Phenol coefficient = 0.038 | Phenol coefficient = 4.78 | Phenol coefficient = 0. 15 | Phenol coefficient = 0.6 | Phenol coefficient = 0.6 | ||||||||||||||||||||