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ISO 21436:2020

Pulps — Determination of lignin content — Acid hydrolysis method ISO 21436:2020

Publication date:   Dec 8, 2020

General information

90.60   Close of review   Mar 5, 2026

ISO

ISO/TC 6 Paper, board and pulps

International Standard

85.040   Pulps

Buying

Published

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Scope

The method is applicable to unbleached, bleached and semi-bleached wood pulp with a lignin content above 1 %. It is not generally intended for fully bleached chemical pulp, because the lignin content in these pulps is too low to be determined accurately.

Life cycle

NOW

PUBLISHED
ISO 21436:2020
90.60 Close of review
Mar 5, 2026




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