ISO-29681 › Paper, board and pulps - Determination of pH of salted water extracts

ISO-29681 - 1ST EDITION - CURRENT


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ISO 29681:2009 specifies a method for the determination of the pH of an aqueous extract of paper, board and pulps, in which the soaking and the measuring are performed in salted water (0,1 M KCl solution).

ISO 29681:2009 is applicable to all kinds of paper, board and pulps, but is specifically applicable to bleached pulps from virgin fibres and to pulp samples having a low ionic strength for which the pH-value using this International Standard will give more realistic results related to mill conditions than those obtained with ISO 6588-1 or ISO 6588-2.

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Document Number

ISO 29681:2009

Revision Level

1ST EDITION

Status

Current

Publication Date

Dec. 15, 2009

Committee Number

ISO/TC 6