| 摘要 |
PURPOSE:To easily measure pH without requiring any intricate operation by bundling hair, spraying distilled water thereto to make the same wet, and inserting a pH electrode into this wet hair bundle. CONSTITUTION:A hair bundle 1 is formed by bundling the hair 2 produced by cutting the hair of the head prior to application of cold waving in beauty treatment or hairdressing to a size of about 1.5-3cm diameters. Distilled water of an ordinary temp. is sprayed toward this bundle 1 to make the same wet sufficiently. The leading end of the electrode 5 of a pH measuring device 4 is inserted into the bundle 1 wet in this way, and the potential at an ordinary temp. is measured. To insert the electrode 5 into the bundle 1, it is inserted 1.2-2cm into the bundle 1 so that the internal saturated potassium chloride soln. oozes from the leading end of a calomel reference electrode into distilled water 3, and it is so inserted that the saturated potassium chloride soln. diffused thoroughly to the outer side of the calomel reference electrode in the distilled water 3. |
