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RS ISO 16265:2009
Water quality — Determination of the methylene blue active substances (MBAS) index — Method using continuous flow analysis (CFA)
Abstract

This International Standard specifies a procedure for the determination of the methylene blue active
substances (MBAS) index, in the ranges 0,05 mg/l to 0,5 mg/l and 0,5 mg/l to 5,0 mg/l, in various water
samples (e.g. ground water, drinking water, surface water, waste water and leachates). Anionic surfactants
are the most important substances showing methylene blue activity. This method is therefore useful for
estimating the anionic surfactant content [including anionic surfactants with carboxylate groups (e.g. soaps)] of
water. Other types of substance may also show methylene blue activity and contribute to the result. On a
case-by-case basis, the range of the analysis may be changed and the method used for other concentration
ranges provided they cover exactly one decade of concentration units.

General Information

CodeClassificationThemePagesPublisherAvailability
RS ISO 16265:2009ADOPTED ISO STANDARDSEnvironment. Health protection. Safety19First Edition
Dec 2023		Available
Price: RWF 16,500


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