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.

Edition	2023
Published Date	2023
Published By	International Standardization Organisation
Page Count	7