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ISO 16265:2009

Current Revision

Water quality - Determination of the methylene blue active substances (MBAS) index - Method using continuous flow analysis (CFA)

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ISO 16265:2009 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.


SDO ISO: International Organization for Standardization
Document Number ISO 16265
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 147/SC 2
Publish Date Document Id Type View
Not Available ISO 16265:2009 Revision