标准摘要
[中文适用范围]： 本标准规定了用滴定法测定表面活性剂中游离碱度或游离酸度的方法。 本方法只有当每种产品的特定标准中指明时方可适用。 [外文原描述]： The determination is carried out in the following way: Titration of an ethanolic or propanolic solution of the product with a standard volumetric potassium hydroxide or hydrochloric acid or sulphuric acid solution whichever is appropriate, in the presence of phenolphthalein as indicator.
英文名称Surface active agents — Determination of free alkalinity or free acidity — Titrimetric method