ISO/CD 26612

Natural Cellulosic Fibres--Determination of Cellulose Degree of Polymerization — Ionic Liquids Method

General information

Current stage: 30.20 CD study/ballot initiated Aug 1, 2026

Originator: ISO

Owner: ISO/TC 38/SC 23 Fibres and yarns

Type: International Standard

Scope

This document specifies the test method for determining the viscosity-average degree of polymerization (DP) of cellulose in natural cellulosic fibres by viscometry measurements of solutions of cellulose in the mixture of 1-butyl-3-methylimidazolium acetate (BMIMOAc) and dimethyl sulfoxide (DMSO).
This document is primarily applicable to natural cellulosic fibres and pure spun cellulosic yarns and fabrics.

Life cycle

NOW

IN_DEVELOPMENT
ISO/CD 26612
30.20 CD study/ballot initiated
Aug 1, 2026