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ISO 23772:2023

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

Standard Details

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.

General Information

Status : Published
Standard Type: Main
Document No: ISO 23772:2023
Document Year: 2023
Pages: 7
Edition: 1
  • Section Volume:
  • ISO/TC 6. Paper, board and pulps

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ISO 23772:2023
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