EN ISO 5263-3-2004 en Pulps - Laboratory wet disintegration - Part 3 Disintegration of mechanical pulps at greater than 85 degrees C《纸浆 实验室湿解离 第3部分 机械浆解离(≥85oC)[代替 CEN EN ISO 5263].pdf
《EN ISO 5263-3-2004 en Pulps - Laboratory wet disintegration - Part 3 Disintegration of mechanical pulps at greater than 85 degrees C《纸浆 实验室湿解离 第3部分 机械浆解离(≥85oC)[代替 CEN EN ISO 5263].pdf》由会员分享,可在线阅读,更多相关《EN ISO 5263-3-2004 en Pulps - Laboratory wet disintegration - Part 3 Disintegration of mechanical pulps at greater than 85 degrees C《纸浆 实验室湿解离 第3部分 机械浆解离(≥85oC)[代替 CEN EN ISO 5263].pdf(18页珍藏版)》请在麦多课文档分享上搜索。
1、BS EN ISO5263-3:2004ICS 85.040NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPulps Laboratorywet disintegrationPart 3: Disintegration of mechanicalpulps at 85 C (ISO 5263-3:2004)This British Standardwas published under theauthority of the StandardsPolicy and St
2、rategyCommittee on 30 April2009. BSI 2009ISBN 978 0 580 53926 8Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 5263-3:2004National forewordThis British Standard was published by BSI. It is the UK implementation of EN ISO 5263-3:2004. Together with BS EN ISO The UK participation
3、in its preparation was entrusted to TechnicalCommittee PAI/11, Methods of test for paper, board and pulps.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are
4、 responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.5263-1:2004 and BS EN ISO 5263-2:2004 it supersedes BS EN ISO 5263:1997 which is withdrawn.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 5263-3September 2004ICS 85.040 Sup
5、ersedes EN ISO 5263:1997 English versionPulps - Laboratory wet disintegration - Part 3: Disintegration ofmechanical pulps at 85 degrees C (ISO 5263-3:2004)Ptes - Dsintgration humide en laboratoire - Partie 3:Dsintgration des ptes mcaniques 85 degrs C(ISO 5263-3:2004)This European Standard was approv
6、ed by CEN on 2 August 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstand
7、ards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to th
8、e Central Secretariat has the same status as the officialversions.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,
9、 Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form and by any mean
10、s reservedworldwide for CEN national Members.Ref. No. EN ISO 5263-3:2004: EBS EN ISO 5263-3:2004ISO 5263-3:2004(E) ISO 2004 All rights reserved iiiContents Page Foreword iv 1 Scope 1 2 Normative references . 1 3 Definition 1 4 Apparatus. 2 5 Preparation of test portion. 2 6 Procedure. 3 7 Test repor
11、t 4 Annex A (normative) Construction of the Standard disintegrator 5 Annex B (normative) Checking the Standard disintegrator. 7 Annex C (normative) Circulation disintegrator . 8 Annex D (informative) The effect of latency in mechanical pulps. 9 Bibliography . 11 BS EN ISO 5263-3:2004ISO 5263-3:2004(
12、E) iv ISO 2004 All rights reservedForeword 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 body int
13、erested 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 Electrotechnic
14、al 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 adopted by the
15、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 rights.
16、ISO shall not be held responsible for identifying any or all such patent rights. ISO 5263-3 was prepared by Technical Committee ISO/TC 6, Paper, board and pulps, Subcommittee SC 5, Test methods and quality specifications for pulps. This first edition cancels and partially replaces ISO 5263:1995 whic
17、h has been technically revised. In the revision, ISO 5263 has been divided into three parts; Part 1 which is applicable to chemical pulps, Part 2 which is applicable to mechanical pulps without latency and Part 3 which is applicable to mechanical pulps exhibiting latency. In Part 3, an informative A
18、nnex has been inserted describing the effect of latency in mechanical pulps. ISO 5263 consists of the following parts, under the general title Pulps Laboratory wet disintegration: Part 1: Disintegration of chemical pulps Part 2: Disintegration of mechanical pulps at 20 C Part 3: Disintegration of me
19、chanical pulps at W 85 C BS EN ISO 5263-3:2004INTERNATIONAL STANDARD ISO 5263-3:2004(E) ISO 2004 All rights reserved 1Pulps Laboratory wet disintegration Part 3: Disintegration of mechanical pulps at W 85 C 1 Scope This part of ISO 5263 specifies an apparatus and the procedures for the laboratory we
20、t disintegration of mechanical pulps that exhibit latency. This apparatus and procedure are required for preparation of the test portion in a number of other International Standards dealing with pulps. ISO 5263-3 is applicable to all kind of mechanical pulps (i.e. mechanical, semi-chemical and chemi
21、-mechanical pulps) exhibiting latency. Mechanical pulps not exhibiting latency shall be disintegrated according to ISO 5263-2. The procedure specified in ISO 5263-2 should be used to disintegrate all mechanical pulps to be measured for brightness. NOTE Brightness is not significantly altered by the
22、presence of latency; however, hot disintegration of mechanical pulps can lead to significant loss of brightness. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated referen
23、ces, the latest edition of the referenced document (including any amendments) applies. ISO 638, Pulps Determination of dry matter content ISO 4119, Pulps Determination of stock concentration ISO 14487, Pulps Standard water for physical testing 3 Definition For the purposes of this part of ISO 5263,
24、the following definitions apply. 3.1 disintegration of mechanical pulp mechanical treatment in water so that interlaced fibres, which were free in the pulp stock, are again separated from one another without appreciably changing their structural properties 3.2 latency condition of a mechanical pulp
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