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对本市医院中正在使用的乙醇消毒液进行了细菌污染调查。结果,在64件样品中,有32件染菌量超过允许水平(250cfu/ml);有36件的浓度不符合要求,高于或低于70～80％。其中,浓度在70～80％的溶液,细菌污染较轻,高于或低于此范围浓度的,污染均较严重(附表)。经了解,乙醇消毒液污染的原因,主要为:①配制马虎,不使用量器,只凭经验随意加水。②使用比重计不当,配制时多向水中倒入乙醇,一边倒一边用比重计测。此时,乙醇与水未混匀,浮在上面的乙醇比重
Bacteria contamination investigations were conducted on the ethanol disinfectant currently being used in hospitals in the city. As a result, 32 out of 64 samples exceeded the allowable level (250 cfu / ml); 36 of the samples did not meet the requirements and were 70 to 80% higher or lower. Among them, the concentration of 70 ~ 80% of the solution, bacterial contamination lighter, above or below this range of concentrations, the pollution is more serious (Schedule). It is understood that the causes of ethanol disinfectant pollution, mainly: ① sloppy preparation, do not use the measuring device, just by experience, add water. ② improper use of hydrometer, the preparation of more water into the ethanol, while pouring side with the gravimetric measurement. At this point, ethanol and water are not mixed, floating on the proportion of ethanol