Full Description

The Kappa number test is used for evaluation of pulps with regard to the degree of delignification and bleachability.

The method can be applied to pulps produced in yields up to about 65% and giving Kappa numbers not higher than 100 on hardwood pulps, and not higher than 120 on softwood pulps (High-yield pulps consume less permanganate for a given yield and lignin content, and cannot be evaluated by this method. Another method, Technical Section, CPPA standard G.32P can be used for evaluation of the whole range of pulps for delignification and bleachability.).

The testing and evaluation of a product against this method may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyone using this method has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any existing applicable regulatory requirements prior to its use.

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Published: 01/01/1992