ISO 6121:1988
Surface active agents; technical alkane sulfonates; determination of alkane monosulfonates content by direct two-phase titration

Standard No.

ISO 6121:1988

Release Date

1988

Published By

International Organization for Standardization (ISO)

Latest

ISO 6121:1988

Scope

The determination is carried out in a consisting of an aqueous phase and a chloroform phase, in the presence of sodium sulfate, by titration against a standard volumetric cationic-active solution (benzethonium chloride), in the presence of an indicator consisting of a mixture of a cationic dye (dimidium bromide) and an anionic dye (acid blue 1).

ISO 6121:1988 history

• 1988 ISO 6121:1988 Surface active agents; technical alkane sulfonates; determination of alkane monosulfonates content by direct two-phase titration
• 1979 ISO 6121:1979 Surface active agents — Technical alkyl- sulphonates — Determination of alkylmonosulphonates content (direct two-phase titration method)