| 摘要 |
<p>The invention concerns a composition in the form of an aqueous solution comprising 0.1 % to 20 wt.% of peracetic acid, 25 to 35 wt.% of hydrogen peroxide, 25 to 45 wt.% of acetic acid and 0.005 % to 2 wt.% of a non-ionic surfactant, characterised in that said surfactant has a critical micellar concentration less than 80mg/dm3, measured at 20 °C in water with a degree of hardness of 25° TH; and the weight ratio between said surfactant and the peracetic acid is less than 0.2. The solution obtainable by diluting in water said composition, is characterised in that the concentration of said non-ionic surfactant in the solution ranges between 5 times and 15 times and preferably 10 times its critical micellar concentration, measured in water at 20 °C with a degree of hardness of 25° TH. Said compositions are useful for disinfecting hard surfaces.</p> |
