ISO 22206:2024

Published (Edition 1, 2024)

ISO 22206:2024

CHF 63

Convert Swiss francs (CHF) to your currency

Abstract

This document describes a method for the determination of the glass transition temperature (Tg) of kraft lignin. The procedure utilizes differential scanning calorimetry (DSC).

This procedure is applicable to solid lignins (e.g., powdered form) isolated using different isolation techniques (e.g., acidification with hydrochloric acid, sulfuric acid, etc., and carbonation using gaseous carbon dioxide) from the spent liquor (black liquor) generated from the kraft pulping process.

It does not apply to raw black liquor and lignin in the alkali form, (lignin that is separated from wood chips and dissolved in sodium sulfide and sodium hydroxide liquor such as that originating from black liquor).

General information

Status
: Published

Publication date
: 2024-09

Stage
: International Standard published [60.60]
Edition
: 1

Number of pages
: 7
Technical Committee :
ISO/TC 6

ICS :
85.040
RSS updates