Study on the Performance of a Compound Ortho-Pathalaldehyde Disinfectant
Objective:The performance of a compound phthalatedehyde disinfectant was observed by experiment.Methods:Stability accelerated test,the carrier quantitative germicidal test and metal corrosion test were conducted for laboratory observation.Results:The compound ortho-phthalaldehyde disinfectant was stored at 37°C for 90 days,resulting in a decrease in ortho-phthalaldehyde content of 5.4%.The disinfectant achieved a 99.999%kill rate against Bacillus subtilis var.niger spores on the carrier after 20 minutes of exposure.Similarly,it achieved kill rates above 99.999%for Staphylococcus aureus,Streptococcus,Enterococcus faecalis,Pseudomonas aeruginosa,Klebsiella pneumoniae,Acinetobacter baumannii,Candida albicans,and Candida tropicalis after 5 minutes of exposure.After immersing in the disinfectant for 72 h,there was no corrosion of stainless steel coupon and carbon steel coupon,slight corrosion of aluminum coupon and copper coupon.Conclusion:The expiration date of the compound ortho-pathalaldehyde disinfectant which as high level disinfectants is 2 year.
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