DIN EN 903-1994 水质.通过测量亚甲兰指数MBAS确定负离子表面活化剂

标准号：DIN EN 903-1994
中文标准名称：水质.通过测量亚甲兰指数MBAS确定负离子表面活化剂
英文标准名称：Water quality; determination of anionic surfactants by measurement of the methylene blue index MBAS (ISO 7875-1:1984, modified); German version EN 903:1993
标准类型：C51;Z16
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：C51;Z16
国际标准分类号：13.060.50
适用范围：The document describes a method for photometric determination of low concentrations of methylene blue active substances (MBAS), i.e. anonic surface active material (chiefly sulfonates and sulfates) in influents and effluents of sewage plants, waste, surface and drinking water. The range of this method is 0.1 to 5.0 mg/l, the limit of detection for solutions of standard surfactants in distilled water, about 0.05 mg/l.#,,#