Standards Development
This standard describes a procedure for determining the content of residual alkali in kraft black liquors having a dry matter content up to 40 %.
Note − If the dry matter content of the sample exceeds 40 %, the sample needs to be diluted with distilled water to a dry matter content around 20 %.
The method is based on a potentiometric titration with hydrochloric acid and is intended for black liquor samples with an initial pH of at least 11,0.
For the purposes of this document, the following terms and definitions apply.
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— IEC Electropedia: available at http://www.electropedia.org/
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