复方含氯泡腾消毒片性能的试验研究

为了解复方含氯泡腾消毒片的消毒相关性能,采用悬液定量杀菌试验和理化检验方法进行实验室和现场试验观察。结果,以含有效氯300 mg/L的该消毒片水溶液对金黄色葡萄球菌作用10 m in,杀灭对数值>5.00;有效氯400 mg/L,对大肠杆菌作用5 m in,杀灭对数值>5.00。用有效氯2000 mg/L该消毒片水溶液作用30 m in,对枯草杆菌黑色变种芽孢杀灭对数值>5.00。对大肠杆菌进行能量试验,最低合格浓度为有效氯800 mg/L。在模拟现场消毒试验中,以有效氯400 mg/L水溶液作擦拭消毒并作用10 m in,对物体表面上细菌繁殖体杀灭对数值>3.0;有效氯2000 mg/L水溶液浸泡处理医疗器械60 m in,对污染在器械上枯草杆菌黑色变种芽孢杀灭对数值亦>3.0。含有效氯2000 mg/L的消毒液浸泡72h对金属有不同程度腐蚀性。结论,含氯复方消毒片具有良好的杀菌效果,但对金属有一定腐蚀性。

EXPERIMENTAL STUDY ON PROPERTIES OF COMPOUND CHLORINE-CONTAINING EFFERVESCENT DISINFECTION TABLET

In order to know the disinfection-related properties compound chlorine-containing effervescent disinfection tablet,suspension quantitative germicidal test and physicochemical examination method were used to carry out laboratory and field trial observation.Results: The killing logarithm values of Staphylococcus aureus exposed to the water solution of the disinfection tablet containing available chlorine 300 mg/L for 10 min,Escherichia coli exposed to the disinfection tablet solution containing available chlorine 400 mg/L for 5 min and Bacillus subtilis var.niger spores exposed to the disinfection tablet solution containing available chlorine 2000 mg/L for 30 min were >5.00.In capacity test for E.coli,the minimal eligible concentration was available chlorine 800 mg/L.In simulated field disinfection trial,wiping disinfection with the disinfection tablet water solution containing available chlorine 400 mg/L for 10 min killed vegetative forms of bacteria on surfaces by a logarithm >3.0.Immersion of medical instruments in its water solution containing available chlorine 2000 mg/L for 60 min killed B.subtilis var.niger spores on the instruments by a logarithm >3.0.Immersion in the disinfection tablet solution containing available chlorine 20000 mg/L for 72 h caused corrosion of metals to various degrees.Conclusion: Compound chlorine-containing disinfection tablet has good germicidal efficacy,but it causes corrosion of metals to certain degree.