Reference number
ISO 6121:1988
ISO 6121:1988
© ISO 2024
International Standard
ISO 6121:1988
Surface active agents — Technical alkane sulfonates — Determination of alkane monosulfonates content by direct two-phase titration
Edition 2
1988-06
1988-06
ISO 6121:1988
12342
Publicado
(Edición 2, 1988)
Esta publicación se revisó y confirmó por última vez en 2019.
Por lo tanto, esta versión es la actual.
Resumen
The determination is carried out in a consisting of an aqueous phase and a chloroform phase, in the presence of sodium sulfate, by titration against a standard volumetric cationic-active solution (benzethonium chloride), in the presence of an indicator consisting of a mixture of a cationic dye (dimidium bromide) and an anionic dye (acid blue 1).
Ciclo de vida
-
Anteriormente
RetiradaISO 6121:1979
-
Ahora