界面活性剤試験法の研究 (第5報)
半微量連続式浸透力試験法 (半微量ハイドロメーター法)
1962 年 11 巻 5 号 p. 241-243
詳細
1962 年 11 巻 5 号 p. 241-243
In the studies on performance tests of surface active agents, a new semimicro continuous method of wetting test, the “Semimicro Hydrometer Method”, has been developed in our laboratory.
In this method the change of apparent density of a tape (2cm×7cm), immersed in a test solution, is measured with a hydrometer. The change is plotted against time on semilog paper, and entire progress of wetting is clearly shown by the apparent density-time curve. The method necessitates only 100 ml of test solution, while the original macro-method needs 1 liter. The apparatus and operation have been improved.
