ISO/DIS 6841

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

General information

Current stage: 40.20 Effective date: 20 pri 2026

Originator: ISO

Owner: ISO/TC 91

Type: International Standard

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

PREVIOUSLY

PUBLISHED
ISO 6841:1988

NOW

IN_DEVELOPMENT
ISO/DIS 6841
40.20 DIS ballot initiated: 12 weeks
20 pri 2026

Preview

Vetëm seksionet informative të projekteve janë në dispozicion të publikut. Për të parë përmbajtjen e plotë, do t'ju duhet të krijoni një llogari. Nëse jeni anëtar, ju lutemi hyni në llogarinë tuaj duke klikuar në butonin "Identifikohu".