如何測試東西已用酒精消毒過 - 酒精

By Steve
at 2011-09-13T00:00
at 2011-09-13T00:00
Table of Contents
因為辦公室每日均請工讀生用稀釋過酒精消毒
但老板希望我能告訴他如何確認這一項工作有落實?
我可以用石蕊試紙嗎?
但老板希望我能告訴他如何確認這一項工作有落實?
我可以用石蕊試紙嗎?
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酒精
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By Kelly
at 2011-09-17T01:25
at 2011-09-17T01:25
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