Table I.
Results from screening the ethanol-based formula (quantitative suspension test with an exposure time of 1.5 min and poliovirus type 1 strain Mahoney/Pette as test virus)
| Ethanol 55% (w/w)+0.7% phosphoric acid |
Reduction factor | ||
|---|---|---|---|
| Acetone (content in %, w/w) | Propan-1.2-diol (content in %, w/w) | Butan-1.3-diol (content in %, w/w) | |
| – | 5 | – | 2.4±0.24a |
| – | 10 | – | 2.4±0.21 |
| – | 20 | – | 2.1±0.25 |
| – | – | 5 | 1.5±0.26 |
| – | – | 10 | 1.1±0.21 |
| – | – | 20 | 0.8±0.29 |
| – | 5 | 5 | 2.5±0.26 |
| – | 10 | 10 | 4.8±0.26 |
| 2 | – | 5 | 3.9±0.25 |
a
95% Confidence limits.