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CEN - EN ISO 16265

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

active, Most Current
Organization: CEN
Publication Date: 1 February 2012
Status: active
Page Count: 22
ICS Code (Examination of water for chemical substances): 13.060.50
scope:

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.

Document History

EN ISO 16265
February 1, 2012
Water quality - Determination of the methylene blue active substances (MBAS) index - Method using continuous flow analysis (CFA)
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...

References

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