１９９８年９月，我们对塑料袋包装（厂家注明采用环氧乙烷灭菌）的１０包一次使用性棉花棒进行细菌污染检测。其中６包直接取样检测，均为阳性，污染的细菌为枯草杆菌、四联球菌、酵母菌。另４包打开后重新改用纸包装，经压力蒸汽灭菌，检测均为阴性。为此，对购进的一次使用 In September 1998, we conducted a bacterial contamination test on a 10-pack disposable cotton swab in a plastic bag (factory marked with ethylene oxide sterilization). Six of them were directly sampled and tested, all of which were positive. The contaminated bacteria were Bacillus subtilis, Tetragenococcus, and yeast. Another 4 bags opened again after the switch to paper packaging, sterilized by pressure steaming, testing were negative. To this end, the purchase of a use