1、BRITISH STANDARD BS EN ISO 5269-1:2005 Pulps Preparation of laboratory sheets for physical testing Part 1: Conventional sheet-former method The European Standard EN ISO 5269-1:2005 has the status of a British Standard ICS 85.040 BS EN ISO 5269-1:2005 This British Standard was published under the aut
2、hority of the Standards Policy and Strategy Committee on 17 February 2005 BSI 17 February 2005 ISBN 0 580 45486 X National foreword This British Standard is the official English language version of EN ISO 5269-1:2005. It is identical with ISO 5269-1:2005. It supersedes BS EN ISO 5269-1:2001 which is
3、 withdrawn. The UK participation in its preparation was entrusted to Technical Committee PAI/11, Methods of test for paper, board and pulps, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The Britis
4、h Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Onlin
5、e. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsibl
6、e international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, t
7、he EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to v, a blank page, pages 1 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments EUROPEAN STANDAR
8、D NORME EUROPENNE EUROPISCHE NORM EN ISO 5269-1 February 2005 ICS 85.040 Supersedes EN ISO 5269-1:2000 English version Pulps - Preparation of laboratory sheets for physical testing - Part 1: Conventional sheet-former method (ISO 5269-1:2005) Ptes - Prparation des feuilles de laboratoire pour essais
9、physiques - Partie 1: Mthode de la formette conventionnelle (ISO 5269-1:2005) Faserstoffe - Laborblattbildung fr physikalische Prfungen - Teil 1: Konventionelles Blattbildungsverfahren (ISO 5269- 1:2005) This European Standard was approved by CEN on 23 December 2004. CEN members are bound to comply
10、with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secret
11、ariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the offici
12、al versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden
13、, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.
14、Ref. No. EN ISO 5269-1:2005: E I NESO 25-96:12( 500E) 2 Foreword This document (EN ISO 5269-1:2005) has been prepared by Technical Committee ISO/TC 6 “Paper, board and pulps“ in collaboration with Technical Committee CEN/TC 172 “Pulp, paper and board“, the secretariat of which is held by DIN. This E
15、uropean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2005, and conflicting national standards shall be withdrawn at the latest by August 2005. This document supersedes EN ISO 5269-1:2000. According to
16、 the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Lux
17、embourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 5269-1:2005 has been approved by CEN as EN ISO 5269-1:2005 without any modifications. ENISO52691:2005 Reference number ISO 5269-1:2005(E) OSI 5
18、002INTERNATIONAL STANDARD ISO 5269-1 Third edition 2005-02-01 Pulps Preparation of laboratory sheets for physical testing Part 1: Conventional sheet-former method Ptes Prparation des feuilles de laboratoire pour essais physiques Partie 1: Mthode de la formette conventionnelle ENISO52691:2005IS-9625
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22、vwo. ISO 5002 All irthgs erse.devr lnUeto sswrehise specified, on trap fo this lbupictaion maeb y cudorperro de tuilizi den yna form ro na ybm ynae,s lecetrinoc ro mecinahcal, inclidung tohpcoiypodna gn micrfoilm, wittuoh repmissii non writign from ietI rehSa Ot tsserdda eh ebolw or ISOs memreb i yd
23、obn the cnuotrfo y ttseuqer ehe.r ISO cirypothg fofice saCe tsopale 65 eneG 1121-HC 02 av leT. 4 + 10 947 22 1 11 xaF0 947 22 14 + 9 74 E-mail coirypthgiso.o gr We bwww.is.o gro Pulbisdehi n Switlrez dnaii ISO 5002 Allr ithgsr esedevrENISO52691:2005IS-9625 O1:(5002E) I SO 5002 All irthgs ersedevr ii
24、iContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references. 1 3 Principle. 2 4 Equipment 2 5 Preparation of sample 3 6 Procedure. 4 6.1 Sheet forming 4 6.2 Transfer of the sheet. 4 6.3 Pressing. 5 6.4 Drying and conditioning. 5 7 Test report 6 Bibliography . 7 ENISO52691:2005IS-9625
25、O1:(5002E) iv I SO 5002 All irthgs ersedevrForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member
26、 body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Elect
27、rotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopte
28、d by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
29、 rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 5269-1 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps, Subcommittee SC 5, Test methods and quality specifications for pulps. This third edition cancels and replaces the second edition
30、(ISO 5269-1:1998), of which the Introduction, Clauses 1, 2, 5 and 7 and the Bibliography have been revised. ISO 5269 consists of the following parts, under the general title Pulps Preparation of laboratory sheets for physical testing: Part 1: Conventional sheet-former method Part 2: Rapid-Kthen meth
31、od ENISO52691:2005IS-9625 O1:(5002E) I SO 5002 All irthgs ersedevr vIntroduction It has been agreed that the ultimate aim of standardization of the preparation of laboratory sheets should be to develop one method which is internationally acceptable and which, if possible, permits the use of differen
32、t types of sheet-making apparatus. For practical reasons, it has not proved possible to achieve this at present. Therefore, as an interim measure, in view of the widespread use of equipment described in this part of ISO 5269, it has been decided to provide agreed guidance on the use of different typ
33、es of equipment in order to achieve consistency of results with each method. To avoid creating too many levels of results, the method specified in this part of ISO 5269 should preferably be used with the Valley beater or PFI mill methods of laboratory beating according to ISO 5264-1 and ISO 5264-2,
34、respectively. The method specified in ISO 5269-2 2(Rapid-Kthen method) should preferably be used with the PFI mill method of laboratory beating according to ISO 5264-2. ENISO52691:2005blank ENISO52691:2005INTENRATIONAL TSANDADR IS-9625 O1:(5002E)I SO 5002 All irthgs ersedevr 1Pulps Preparation of la
35、boratory sheets for physical testing Part 1: Conventional sheet-former method 1 Scope This part of ISO 5269 specifies a method, using a conventional 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 as
36、sess 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 s
37、heets 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. 2 Normative references The following referenced documents are indispensab
38、le for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 187, Paper, board and pulps Standard atmosphere for conditioning and testing and procedure for
39、monitoring the atmosphere and conditioning of samples ISO 3310-1, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth ISO 5263-1, Pulps Laboratory wet disintegration Part 1: Disintegration of chemical pulps ISO 5263-2, Pulps Laboratory wet disintegration Part 2: Di
40、sintegration of mechanical pulps at 20 C ISO 5263-3, Pulps Laboratory wet disintegration Part 3: Disintegration of mechanical pulps at W 85 o C ISO 5264-1, Pulps Laboratory beating Part 1: Valley beater method ISO 5264-2, Pulps Laboratory beating Part 2: PFI mill method ISO 5635, Paper Measurement o
41、f dimensional change after immersion in water ISO 8787, Paper and board Determination of capillary rise Klemm method ENISO52691:2005IS-9625 O1:(5002E) 2 I SO 5002 All irthgs ersedevr3 Principle A circular, square or rectangular sheet is formed from a pulp suspension on a wire screen under suction. T
42、he sheet is subjected twice to a pressure of 410 kPa. The sheet is dried in conditioned air and in contact with a drying plate, to which it adheres so that it does not shrink. 4 Equipment 4.1 Sheet former, consisting of three main parts. 4.1.1 Upper section, comprising a stock container, with a mark
43、 located 350 mm 1 mm above a wire screen (see 4.1.3). It is furnished with a rubber gasket to prevent leakage. The cross-section of the container shall be circular, square or rectangular, and constant throughout the height. If the container is rectangular, the shorter side shall be not less than 120
44、 mm and the ratio of the longer to the shorter side shall not exceed 2,5. If the container is circular, it shall be not less than 158 mm in diameter. It shall be of such height that water will not splash over the edge when the stirrer (4.2) is operating. 4.1.2 Lower section, comprising a drainage ve
45、ssel, consisting of an upper and a lower part. The upper part shall have the same cross-section as the stock container (see 4.1.1), and its shape shall be such that the flow of liquid through the wire screen is uniform over the whole area. The lower part may be of smaller cross- section but shall be
46、 positioned symmetrically in relation to the upper part. The lower part shall be fitted with a valve, which is connected to a draining pipe with a water seal at its lower end. The vertical distance from the top of the wire screen to the overflow of the water seal shall be 800 mm 5 mm. The lower part
47、 and the drainage valve shall be large enough to permit water in the stock container between the level mark and the wire screen to empty within 4,0 s 0,2 s. The lower part of the drainage container shall be provided with a water inlet tube. The design shall incorporate a means of releasing vacuum af
48、ter the sheet has been formed. 4.1.3 Frame, with a perfectly flat, plain-woven metallic wire screen, to be placed horizontally between the upper section (4.1.1) and the lower section (4.1.2). The screen shall be clean, undamaged and fitted without wrinkles and corrugations. It shall have a nominal s
49、ize of aperture of 125 m, according to ISO 3310-1. The preferred diameter of the wire shall be 90 m with a permissible range between 77 m and 104 m. The wire screen is backed by a coarser wire screen, which, in turn, may be backed by a rigid framework. 4.2 Stirrer, made of any non-corroding, rigid material, consisting of a perforated plate and furnished with vanes to keep t
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