ISO/TC 91 Grenzflächenaktive Stoffe,
ISO/TC 91 Surface active agents,
ISO/TC 91 Agents de surface,
ISO Internationale Organisation für Normung,
ISO International Organization for Standardization,
ISO Organisation Internationale de Normalisation
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Media type:
Standard
Title:
ISO 673
:
Soaps; Determination of content of ethanol-insoluble matter
Other titles:
Früher unter dem Titel: ISO/R 673 (1968-02)
Seifen; Bestimmung des Gehaltes an ethanolunlöslichen Bestandteilen
Savons; Détermination de la teneur en matières insolubles dans l'éthanol
Description:
The soap is dissolved in ethanol, filtrated and the undissolved residue is weighed. The constituents not dissolved correspond to the additives and foreign matter, of low solubility or insolubility in 95 % (V/V) ethanol, added to soaps and also to substances in all soap formulations, such as alkali carbonates and chlorides, borates, perborates, suphates, silicates, phosphates etc. It also may consist of organic substances like starches, dextrins, caseins, sugars, cellulose derivatives, alginates, etc.