Determines the relative hardness, bleach ability, or degree of dezincification of pulp.
Used for all types and grades of chemical and semi chemical, unbleached and semi bleached pulps obtained in yields under 60%.
Used for pulps obtained in yields up to 70%, provided the pulp has been well screened.
Kappa number is the volume (in milliliters) of 0.1 N potassium permanganate solution consumed by one gram of moisture-free pulp under the conditions specified in this method.
The results are corrected to 50% consumption of the permanganate added.
