Study on Disinfection Efficacy of Two Peracetic Acid Disinfectants in Clean Area
Objective:To study the disinfection effect of two peroxyacetic acid disinfectants commonly used in clean areas on different microorganisms.Methods:Suspension and carrier immersion quantitative germicidal test and on-site surface spray disinfection effect test was used to observe the disinfection efficacy of two peracetic acid disinfectants.Results:The logarithm of killing Staphylococcus aureus(SA),Pseudomonas aeruginosa(PA),Escherichia coli(EC),Bacillus subtilis(BS),Candida albicans(CA)and Aspergillus niger(an)on suspension and different carriers were≥5.00 after the two disinfectants acted for 10min and 5min respectively;After spraying and disinfecting the clean area on site,no natural bacteria were detected on the surface of all samples.Conclusion:The two peracetic acid disinfectants selected in this study have good bactericidal effects on the tested indicator microorganisms and natural bacteria on the surface of objects,and can provide an option for daily disinfection operations in clean areas in the industry.