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ISO 2131:1972

Surface active agents — Simplified classification

Nov 1, 1972

General information

90.93     Jun 26, 2021

ISO

ISO/TC 91

International Standard

71.100.40  

French   English  

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 2131:1972
90.93 Standard confirmed
Jun 26, 2021