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为贯彻《消毒管理办法》,我站于1989年10月与1990年9月分别对全县发证前、后13家牙刷厂生产的牙刷进行了微生物污染情况调查。调查结果表明,在未实行卫生许可证管理前的64份样品,不合格者23份(35.94％)。发证管理后的43份样品,不合格2份(4.65％)。两者经卡方检验,有显著性差异(P<0.01)。在未实行卫生许可证管理前,我县生产牙刷的
In order to implement the “Disinfection Management Measures”, I conducted a survey on microbial contamination of toothbrushes produced by 13 toothbrush factories before and after certification in October 1989 and September 1990 respectively. According to the survey, 23 samples (35.94%) failed to pass the 64 samples before the implementation of the hygiene license. After the issuance of the management of the 43 samples, 2 failed (4.65%). The two by the chi-square test, there was a significant difference (P <0.01). Before the implementation of health permit management, my county produces toothbrushes