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１９９８年在常规监测中发现，使用中的苯扎溴铵（新洁尔灭）溶液细菌总数超标，污染菌多为木糖氧化产碱杆菌。对其污染途径进行了调查。检测制剂室空气细菌总数超标（＞２００ ｃｆｕ／ ｍ３）率为 １００％（１２／ １２），使用中的苯扎溴铰稀释液（制剂室配制）细菌总数超
In routine monitoring in 1998, it was found that the total number of bacteria in the benzalkonium bromide (Bromo-benzalkonium bromide) solution used exceeded the standard, most of which were Xylostella xylostella. Investigated its route of pollution. The total bacterial count (> 200 cfu / m3) was 100% (12/12) in the air of the test preparation room, and the total number of bacteria in the used benzalkonium bromide diluent