質問ですが、廃酸（20％の硝酸で、少量の有機物を含む）の火災危険性はどのクラスに分類されますか？？？急いで！急いで！急いで！...
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質問ですが、廃酸（20％の硝酸で、少量の有機物を含む）の火災危険性はどのクラスに分類されますか？？？急いで！急いで！急いで！…この廃酸処理装置を乙類に分類する場合、密閉された工場内に設置できないのでしょうか？
硝酸エチルが第二類なら、他は考える必要ない。
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