ISO 6121:1988
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ISO 6121:1988
12342

Status : Published (Under review)

This standard was last reviewed and confirmed in 2019. Therefore this version remains current.
en
Format Language
std 1 42 PDF
std 2 42 Paper
  • CHF42
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Abstract

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).

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General information

  •  : Published
     : 1988-06
    : International Standard confirmed [90.93]
  •  : 2
     : 3
  • ISO/TC 91
    71.100.40 
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