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在２１～２７℃下，用１００ｍｇ／Ｌ多聚甲醛与规定比例的高锰酸钾和水反应产生的甲醛气体熏蒸１小时，可将枯草杆菌黑色变种芽胞杀灭９９．９９％；对医疗器材上的自然菌，除聚氯乙烯吸引管内腔灭菌率仅９４．７％外，所试缝线、电灼器与硅胶穿刺针均无菌生长。温度升至３７℃，多聚甲醛用量可减至７０ｍｇ／Ｌ。
At 21 ~ 27 ℃, 100mg / L paraformaldehyde and a predetermined ratio of potassium permanganate and water produced by the reaction of formaldehyde gas fumigation for 1 hour, Bacillus subtilis black germ can kill 99.99%; for medical equipment On the natural bacteria, in addition to polyvinyl chloride tube cavity sterilization rate of only 94.7%, the test suture, the electrocautery and silicone puncture needle were sterile growth. The temperature rose to 37 ℃, paraformaldehyde dosage can be reduced to 70mg / L.