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 4315
:
Surface active agents; Determination of alkalinity; Titrimetric method
Other titles:
Grenzflächenaktive Stoffe; Bestimmung der freien Alkalität; titrimetrische Methode
Agents de surface; Détermination de l'alcalinité; Méthode titrimétrique
Footnote:
Internationale Übereinstimmung mit: BS 6829-1.3 (1988-08-31) - identisch; GB/T 7378 (1996) - nicht äquivalent; GB/T 7378 (2012) - modifiziert; NF T73-204 (1977-10-01) - identisch; PN-C-04844 (1993-06-25) - identisch; UNE 55531 (1979-04-15) - nicht äquivalent; KS M ISO 4315 (2003-11-14) - identisch; TS 5786 (1988-04-26) - identisch; NBN T 63-132 (1980) - identisch; NP-1523 (1977) - identisch; NP-1523 (1986) - identisch
Description:
A clear solution of the substance is titrated with a standard volumetric hydrochloric acid solution, in the presence of methyl orange or bromophenol blue as indicator. This method is only applicable when so indicated in the specific standard for each product; in particular, it is not suitable for products containing soaps.