Mean Percentage of B. subtilis ATCC 6633 Spores Recovered from Paper Towel Underlying the Steel Carrier Following Spraying. 100% recovery would be the entire inoculum of 7.8 × 107 CFU/mL. Data are represented as mean ± SEM, n = 2 with three replicates.
| Test Disinfectant | Average Percentage of B. subtilis ATCC 6633 spores removed on spraying (%) |
|---|---|
| QUAT + Biguanide | 2.2 ± 0.00 |
| QUAT + Chlorine dioxide | 10.7 ± 0.01 |
| 6% Hydrogen peroxide | 2.5 ± 0.01 |
| Amphoteric surfactant | 26.1 ± 0.22 |
| 70% v/v denatured ethanol with deionised water | 1.3 ± 0.00 |
| 70% IPA with water for injection | 1.7 ± 0.00 |
| Sterile distilled water | 20.8 ± 0.01 |