标准摘要
[中文适用范围]： 将具有已知性质和特性的棉盘握在手柄中，浸入已知浓度的表面活性剂溶液中。 空气排出且溶液渗透到布中后，棉盘开始下沉。 润湿时间是通过测量棉盘浸入水中的时刻和开始下沉的时刻之间的间隔来确定的。 润湿时间由两种标准溶液和五种不同浓度的每一种确定，然后由五种不同浓度的测试表面活性剂溶液确定。 绘制并比较了三个曲线“润湿时间/浓度”。 [外文原描述]： A cotton disc of known nature and characteristics, held in a grip, is immersed in a solution of surface active agent of known concentration. After displacement of air an penetration of the solution into the cloth, the cotton disc starts to sink. The wetting time is determined by measurement the interval between the moment of immersion of the cotton disc and the moment when it begins to sink. The wetting time is determined of two standard solutions and for each of five different concentrations and then of the surface active agent solution under test for five different concentrations. The three curves "wetting time / concentration" are plotted and compared.
英文名称Surface active agents — Determination of wetting power by immersion