ISO 2131:1972
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ISO 2131:1972
6921

Status : Published (Under review)

This standard was last reviewed and confirmed in 2021. Therefore this version remains current.
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Format Language
std 1 42 PDF
std 2 42 Paper
  • CHF42
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Abstract

The simplified system enables the characteristics of the substances to be expressed by an abbreviated lettering and numbering system, consisting of one letter and four figures (five in the case of compounds comprising several hydrphilic groups). The letter designates the ionic character and figures correspond to the functional groups present in the molecule.

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General information

  •  : Published
     : 1972-11
    : International Standard confirmed [90.93]
  •  : 1
     : 5
  • ISO/TC 91
    71.100.40 
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Life cycle

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