Reference number
ISO 6843:1988
ISO 6843:1988
© ISO 2024
International Standard
ISO 6843:1988
Surface active agents — Sulfated ethoxylated alcohols and alkylphenols — Estimation of the mean relative molecular mass
Edition 1
1988-06
1988-06
ISO 6843:1988
13350
Published
(Edition 1, 1988)
This publication was last reviewed and confirmed in 2024.
Therefore this version remains current.
Abstract
By successive extraction, separation, evaporation, redissolution, and filtration through an ion-exchange resin the contents of sodium chloride, anionic-active matter, polyglycol, and polyglycol sulfate are determined. From the content of anionic surface active agent (alkylether sulfate) and the anionic surface active matter content determined by two-phase titration, the mean relative molecular mass is estimated.