ISO 6841:1988Published

Surface active agents — Technical straight-chain sodium alkylbenzenesulfonates — Determination of mean relative molecular mass by gas-liquid chromatography

Agents de surface — Alkylbenzène sulfonates de sodium linéaires techniques — Détermination de la masse moléculaire relative moyenne par chromatographie gaz-liquide

A new edition is under development: ISO/DIS 6841.

Abstract / scope

A test portion is desulfonated in concentrated phosphoric acid medium and the liberated alkylbenzene is extracted with light petroleum. The mean relative molecular mass of the extracted alkylbenzene is determined chromatograhically. The mean relative molecular mass of the alkylbenzenesulfonate is calculated.

Life cycle

Replaces

ISO 6841:1983WithdrawnSurface active agents — Technical straight-chain sodium alkylbenzenesulphonates — Determination of mean relative molecular mass — Gas-liquid chromatographic methodInternational Standard · Published 1 Jan 1983 · ISO/TC 91

Replaced by

ISO/DIS 6841Under developmentSurface active agents — Technical straight-chain sodium alkylbenzenesulfonates — Determination of mean relative molecular mass by gas-liquid chromatographyInternational Standard · ISO/TC 91