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download between 0-24 hoursReleased: 2023
ISO 23772:2023
ISO 23772:2023-Pulps — Kraft liquor — Determination of residual alkali using potentiometric titration
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| Standard´s number: | ISO 23772:2023 |
| Pages: | 7 |
| Edition: | 1 |
| Released: | 2023 |
| Language: | English |
DESCRIPTION
ISO 23772:2023
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.