BS 6035-2:1982
Current
The latest, up-to-date edition.
Methods for determination of the drainability of pulp \'Canadian Standard\' freeness method
Hardcopy , PDF
English
31-05-1982
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National foreword
Cooperating organizations
Method
0. Introduction
1. Scope
2. Field of application
3. Reference
4. Definition
5. Principle
6. Apparatus
7. Preparation of sample
8. Procedure
9. Expression of results
10. Test report
Annexes
A. The "Canadian Standard" freeness tester
B. Maintenance of the "Canadian Standard" freeness
tester
C. Calibration service
D. Authorized laboratories
E. "Canadian Standard" freeness tester (Table of
freeness corrections to 0,30% consistency)
F. "Canadian Standard" freeness tester (Table of
freeness corrections to 20 deg C)
Figures
1. "Canadian Standard" freeness tester
2. Bottom orifice
Specifies a method for measuring the rate at which a dilute pulp suspension may be dewatered, so giving a guide to the amount of mechanical treatment the pulp has received.
| Committee |
PAI/11
|
| DevelopmentNote |
Also numbered as ISO 5267-2:1980 Supersedes 78/60851 DC (09/2005)
|
| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
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.
| DEFSTAN 68-205/1(1993) : INTERIM | CHEMICAL WOOD PULP (BLEACHED SULPHATE) |
| BS 5916(1989) : AMD 7808 | SPECIFICATION FOR UNITS FOR EXPRESSING PROPERTIES OF PAPER BOARD AND PULPS |
| BS 5878:1980 | Method for determination of stock concentration of pulps (rapid method) |
| BS 6035-1:1981 | Methods for determination of the drainability of pulp Schopper-Riegler method |
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