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福尔马林是固定生物医学标本的主要药物,该药易挥发,刺激性大,对人体健康有一定的影响。有必要将该药在固定液中的浓度控制在有效最低浓度,为此,我们制作出福尔马林浓度测定计。该浓度计以酒精比重计为基础改制而成。其使用方法与酒精比重计基本相同,具有酒精比重计的廉价、使用方便、操作简单、测骨结果准确,易放置等优点。尤其在配制大剂量药液时,能大大提高工作效率。制作方法: 1.取酒精比重计一支,将其上端轻轻敲开,取出原刻度纸。
Formalin is the main drug in fixed biomedical specimens. The drug is volatile, irritating and has some impact on human health. It is necessary to control the concentration of the drug in the fixative liquid to the lowest effective concentration. For this purpose, we make a formalin concentration meter. The concentration meter based on alcohol gravimetric restructuring made. Its usage is basically the same as that of alcohol hydrometer. It has the advantages of cheap alcohol scale, convenient operation, simple operation, accurate bone measurement results and easy placement. Especially in the preparation of large doses of liquid, can greatly improve work efficiency. Production methods: 1. Take a hydrometer, gently knock on the top, remove the original scale paper.