标准摘要
[中文适用范围]： 在甲基橙或溴酚蓝作为指示剂存在下，用标准容量盐酸溶液滴定该物质的澄清溶液。 该方法仅在每种产品的具体标准中注明时才适用；特别是不适合含有肥皂的产品。 [外文原描述]： A clear solution of the substance is titrated with a standard volumetric hydrochloric acid solution, in the presence of methyl orange or bromophenol blue as indicator. This method is only applicable when so indicated in the specific standard for each product; in particular, it is not suitable for products containing soaps.
英文名称Surface active agents — Determination of alkalinity — Titrimetric method