Sporicidal activity of peracetic acid-based disinfectant B_ Composition: 1% product solution contains 0_15% peracetic acid (results from 1 experiment, the reproducibility of PN‑EN 13704: 2018-09 method was ± 0_09)_
| Disinfectant | Concentration [%] | Contact time [min] | Organic load conditions | The reduction required [lg] | The reduction obtained [lg] |
|---|---|---|---|---|---|
| B | 1 | 15 | clean* | ≥ 3 | > 3.31 |
| B | 1 | 15 | dirty** | ≥ 3 | > 3.31 |
The susceptibility of Clostridium sporogenes ATCC 3584 spores to glutardialdehyde and peracetic acid under the parameters defined for Clostridioides difficile R027 spores (results from two independent experiments, the reproducibility of PN-EN 13704: 2018-09 method was ± 0_09)_
| Reference substance | Concentration [%] | Contact time [min] | The reduction required [lg] | The reduction obtained [lg] |
|---|---|---|---|---|
| Glutardialdehyde | 1.0 | 15 | < 1.5 | < 1.82 |
| Glutardialdehyde | 6.0 | 15 | ≥ 1.5 | 2.11 |
| Peracetic acid | 0.01 | 15 | < 1.5 | 2.54 |
| Peracetic acid | 0.04 | 15 | ≥ 1.5 | > 3.38 |
Sporicidal activity of the glutaraldehyde-based disinfectant A_ Composition: 2_5% glutardialdehyde (results from three independent experiments, the reproducibility of PN‑EN 13704: 2018-09 method was ± 0_09)_
| Disinfectant | Concentration [%] | Contact time [min] | Organic load conditions | The reduction required [lg] | The reduction obtained [lg] |
|---|---|---|---|---|---|
| A | 80 | 15 | clean* | ≥ 3 | < 1.84 |
| A | 80 | 60 | clean | ≥ 3 | > 3.19 |
| A | 80 | 60 | dirty** | ≥ 3 | 3.24 |
The composition of neutralizers used in the tests_
| Disinfectants/reference substances | Composition |
|---|---|
| A) Glutardialdehyde | polysorbate 80 – 30 g/l |
| saponin – 30 g/l | |
| histidine – 1 g/l in diluent | |
| B) Peracetic acid | polysorbate 80 – 10 g/l |
| sodium thiosulfate – 5 g/l | |
| lecithin – 3 g/l in diluent | |