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目的为了解同一含氯消毒剂在不同实验室间有效成分含量及杀菌效果测试值有无差别。方法5家不同实验室按照2002年版《消毒技术规范》规定的实验方法对有效氯含量及杀菌效果进行了室间比对。结果5家实验室的有效氯含量测试结果平均值为47.1%,标准差为0.71,对大肠杆菌、金黄色葡萄球菌、铜绿假单胞菌、枯草杆菌黑色变种芽孢的杀菌效果,高剂量组杀灭对数值较接近,低剂量组则偏差较大。结论不同实验室采用相同方法测试同一含氯消毒剂,有效含量结果较一致,杀菌效果偏差相对较大,应采取相应的措施进一步控制检测质量。
Objective To understand whether the same chlorine-containing disinfectant in different laboratories between the active ingredient content and the bactericidal effect test value is there any difference. Methods Five different laboratories conducted an intercomparison of effective chlorine content and bactericidal effect according to the experimental methods prescribed in the 2002 edition of Disinfection Technical Specification. Results The average effective chlorine content of the five laboratories was 47.1% and the standard deviation was 0.71. The bactericidal effect on E. coli, Staphylococcus aureus, Pseudomonas aeruginosa and Bacillus subtilis black spores was high. Extinction logarithmically closer, low-dose group is larger deviation. Conclusion Different laboratories using the same method to test the same chlorine-containing disinfectant, the effective content of the results are more consistent, the sterilization effect of the deviation is relatively large, and should take appropriate measures to further control the quality of the test.