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download between 0-24 hoursReleased: 1972
ISO 2131:1972
ISO 2131:1972-Surface active agents — Simplified classification
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| Standard´s number: | ISO 2131:1972 |
| Pages: | 5 |
| Edition: | 1 |
| Released: | 1972 |
DESCRIPTION
ISO 2131:1972
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.