Methods for determination of the drainability of pulp -- 'Canadian Standard' freeness method
This International Standard specifies a method for determination of the drainability of a pulp suspension in water in terms of the “Canadian Standard” freeness (CSF) number.
The “Canadian Standard” freeness test is designed to provide a measure of the rate at which a dilute suspension of pulp may be dewatered. It has been shown that the drainability is related to the surface conditions and swelling of the fibres, and constitutes a useful index of the amount of mechanical treatment to which the pulp has been subjected.
Results of this test do not necessarily correlate with the drainage behaviour of a pulp material on a commercial paper machine.
A method for the determination of drainability in terms of the Schopper-Riegler number is specified in ISO 5267-1.
| SDO | BSI: British Standards Institution |
| Document Number | 6035-2 |
| Publication Date | May 31, 1982 |
| Language | en - English |
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| Committee | PAI/11 |