ISO 23772:2023

Pulps — Kraft liquor — Determination of residual alkali using potentiometric titration

This document describes a procedure for determining the content of residual alkali in Kraft black liquors having a dry matter content up to 40 %. The method is based on a potentiometric titration with hydrochloric acid and is intended for black liquor samples with an initial pH ≥ 11,0. The lower limit of determination is 0,1 g/l of eq. NaOH.

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

85.040

Statut:

Publié

Date de Publication:

2023-03-09

Numéro Standard:

ISO 23772:2023