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ISO 2131:1972

ISO 2131:1972

Surface active agents — Simplified classification

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General Information

Status :

Active

Standard Type : Main

Document No : ISO 2131:1972

Document Year : 1972

Pages : 5

Edition : 1

Section Volume : Surface active agents (ISO/TC 91.)

ICS : Surface active agents (71.100.40)

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.