Norm

NEN-EN 903:1994 en

Water - Bepaling van het gehalte aan anion-actieve detergentia met behulp van de methyleenblauw-index

34,50

Over deze norm

Status Definitief
Aantal pagina's 8
Commissie Anorganische parameters
Gepubliceerd op 01-07-1994
Taal Engels
Under the experimental conditions, sulfonates and sulfates are the compounds chiefly measured, but some positive and negative interferences can occur. The method is applicable to drinking water, surface water as well as waste water, e.g. for the determination of the primary degradation of surfactants being under investigation in test systems containing natural or synthetic waste water. This applies for both laboratory scaled and technical waste water treatment plants. In the case of effluents originating from municipal waste water treatment plants, the MBAS index comprises not only synthetic but to a considerable extent also natural anionic surface active substances. The range of this method is applicable to concentrations of 0,1 to 5,0 mg/l and the limit of detection is about 0,05 mg/l for solutions of standard surfactants in distilled water.

Details

ICS-code 13.060.50
Nederlandse titel Water - Bepaling van het gehalte aan anion-actieve detergentia met behulp van de methyleenblauw-index
Engelse titel Water quality - Determination of anionic surfactants by measurements of the methylene blue index MBAS
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