BS-6035-2-1982 ISO-5267-2-1980.pdf
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1、BRITISH STANDARD BS 6035-2: 1982 ISO 5267-2: 1980 Methods for Determination of the drainability of pulp Part 2: “Canadian Standard” freeness method ISO title: Pulps Determination of drainability Part 2: “Canadian Standard” freeness method UDC 676.017.3 Licensed Copy: sheffieldun sheffieldun, na, Wed
2、 Dec 06 15:24:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6035-2:1982 This British Standard, having been prepared under the direction of the Paper Standards Committee, was published under the authority of the Board of BSI and comes into effect on 31 May 1982 BSI 12-1999 The following BSI refere
3、nces relate to the work on this standard: Committee reference PAM/11 Draft for comment 78/60851 DC ISBN 0 580 12755 9 Cooperating organizations The Paper Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: British Paper and B
4、oard Industry Federation (PIF)* British Printing industries Federation* Envelope Makers and Manufacturing Stationers Association* HM Customs and Excise Her Majestys Stationery Office* Institute of Trading Standards Administration National Association of Paper Merchants National Economic Development
5、Office Pira (The Research Association for the Paper and Board, Printing and Packaging Industries)* Royal Institute of Public Health and Hygiene The organizations marked with an asterisk in the above list, together with the following, were directly represented on the Technical Committee entrusted wit
6、h the preparation of this British Standard: British Fibreboard Packaging Association British Wood Pulp Association Chemical Industries Association Man-made Fibres Producers Committee Ministry of Defence Paper Sack Development Association Ltd. Post Office Society of British Printing Ink Manufacturers
7、 University of Manchester Institute of Science and Technology Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:24:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6035-2:1982 BSI 12-1999i Contents Page Cooperating organizatio
8、nsInside front cover National forewordii 0Introduction1 1Scope1 2Field of application1 3Reference1 4Definition1 5Principle1 6Apparatus1 7Preparation of sample1 8Procedure2 9Expression of results2 10Test report2 Annex A The “Canadian Standard” freeness tester3 Annex B Maintenance of the “Canadian Sta
9、ndard” freeness tester6 Annex C Calibration service6 Annex D Authorized laboratories7 Annex E “Canadian Standard” freeness tester (Table of freeness corrections to 0,30 % consistency)8 Annex F “Canadian Standard” freeness tester (Table of freeness corrections to 20 C)9 Figure 1 “Canadian Standard” f
10、reeness tester4 Figure 2 Bottom orifice5 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:24:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6035-2:1982 ii BSI 12-1999 National foreword This Part of this British Standard has been prepared under the
11、 direction of the Paper Standards Committee and is identical with ISO 5267-2 “Pulps Determination of drainability Part 2: “Canadian Standard” freeness method” published in 1980 by the International Organization for Standardization (ISO). Part 1 of this standard is identical with ISO 5267-1:1979 “Pul
12、ps Determination of drainability Part 1: Schopper-Riegler method”. Terminology and conventions. The text of the International Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in
13、British Standards; attention is especially drawn to the following. The comma has been used throughout as a decimal marker. In British Standards it is current practice to use a full point on the baseline as the decimal marker. Wherever the words “International Standard” appear, referring to this stan
14、dard, they should be read as “British Standard”. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal oblig
15、ations. Cross references International StandardCorresponding British Standard ISO 4119:1980BS 5878:1980 Method for determination of stock concentration of pulps (rapid method) (Identical) ISO 5267-1:1979BS 6035 Methods for determination of the drainability of pulp Part 1:1980 Schopper-Riegler method
16、 (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 10, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment tabl
17、e on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 15:24:17 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6035-2:1982 BSI 12-19991 0 Introduction The “Canadian Standard” freeness number depends on the conditions of measurement, particularly the geometric characterist
18、ics of the instrument. The only practical means of achieving the required degree of accuracy is by the calibration procedure specified in Annex C. The reproducibility of this method is entirely dependent on these arrangements being established within and between countries. 1 Scope This International
19、 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
20、 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 materi
21、al 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. 2 Field of application In principle, this method is applicable to all kinds of pulp in aqueous suspension. NOTEHowever, treatments which produce a larg
22、e proportion of fines may induce an anomalous rise in freeness (false freeness) as a rule at values below 100 CSF number. 3 Reference ISO 4119, Pulps Determination of stock concentration. 4 Definition For the purposes of this International Standard, the following definition applies: “Canadian Standa
23、rd” freeness number the volume, expressed in millilitres, of the filtrate collected from the side orifice of the “Canadian Standard” freeness tester 5 Principle Drainage through a fibre mat formed during the test on a perforated screen plate of a given volume of pulp in aqueous suspension into a fun
24、nel provided with a bottom and a side orifice. Collection of the discharge from the side orifice in a measuring cylinder. 6 Apparatus Ordinary laboratory apparatus, and 6.1 “Canadian Standard” freeness tester, as described in Annex A. Instructions for maintenance of the apparatus are given in Annex
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