This part of ISO 5269 specifies a method, using a Rapid-Köthen sheet former, for the preparation of laboratory
sheets of pulp for the purpose of carrying out subsequent physical tests on these sheets in order to assess the
relevant properties of the pulp itself.
This part of ISO 5269 is applicable to most kinds of pulp. It is not suitable for some pulps with very long fibres,
such as those made from unshortened cotton, flax and similar materials.
This method is not suitable for the preparation of laboratory sheets for the determination of diffuse blue
reflectance factor (ISO brightness) in accordance with ISO 3688[1].
WARNING ¿ When long-fibred pulp is used in the unshortened form, the sheet formation may not
always be satisfactory.
Dieser Teil der ISO 5269 legt ein Verfahren für die Blattbildung zur Herstellung von Laborblättern auf einer Rapid-Köthen-Blattbildungseinrichtung fest. Die so hergestellten Laborblätter können anschließend physikalischen Prüfungen unterzogen werden, um die relevanten Eigenschaften des Faserstoffes zu bestimmen.