What we test to
| Organism | Contact time | Log reduction |
|---|---|---|
| Staphylococcus aureus | 3 min | ≥ 5.00 |
| Pseudomonas aeruginosa | 3 min | ≥ 5.00 |
| Candida albicans | 3 min | ≥ 4.00 |
What a "log reduction" means
A 5-log reduction means 99.999% of the test population is killed; 4-log means 99.99%. The higher the log value, the stronger the kill. Contact time matters too — our targets are met at 3 minutes, a realistic working time for skin prep.
Why efficacy depends on the earlier chapters
Kill performance is downstream of concentration and fluid volume. That is why we run efficacy testing on finished product — after filling and sealing — rather than only on the bulk solution. It is the assembled pad, as the user will open it, that has to perform.
For EU and international buyers
Purchasers in some markets reference standardised suspension tests such as EN 1276 for bactericidal activity. When you compare suppliers, ask which test method and organisms were used and request the test report — the method behind a claim matters as much as the claim itself.
