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1、a Date: 29 March 2007 Origin: International Latest date for receipt of comments: 30 June 2007 Project no.: 2006/00099 Responsible committee: PRI/50 Rubber - Raw, natural and synthetic, including latex and carbon black Interested committees: Title: Draft ISO 2393 Rubber test mixes - Preparation, mixi
2、ng and vulcanisation - Equipment and procedures Supersession information: If this document is published as a standard, the UK implementation of it will supersede NONE and partially supersede NONE . If you are aware of a current national standard which may be affected, please notify the secretary (co
3、ntact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 June 2007. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will
4、 normally be sent. See overleaf for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 1988 or for circulation within a nominating organization for briefing purposes. Electronic circ
5、ulation is limited to dissemination by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email ordersbsi-. British, International and foreign standards are also available from BSI Customer Se
6、rvices. British Standards on CD or Online are available from British Standards Publishing Sales Limited. Tel: 01344 404409 or email bsonlinetechindex.co.uk. Information on the co-operating organizations represented on the committees referenced above may be obtained from the responsible committee sec
7、retary. Cross-references The British Standards which implement International or European publications referred to in this draft may be found via the British Standards Online Service on the BSI web site http:/www.bsi-. Direct tel: 020 8996 7565 Responsible Committee Secretary: Miss Charlotte Armstron
8、g (BSI) E-mail: charlotte.armstrongbsi- Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 7.0 DPC: 07/30144606 DC Licensed Copy: London South Bank University, London South Bank University, Mon Apr 16 02:50:
9、12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on international discussions in which the UK has taken an active part. Your comments on this draft are invited and will assist in the preparation of the consequent standard. Comments submitted will be reviewed
10、by the relevant BSI committee before sending the consensus UK vote and comments to the international secretariat, which will then decide appropriate action on the draft and the comments received. If no comments are received to the contrary, then the UK will approve this draft. If the international s
11、tandard is approved, it is possible the text will be published as an identical British Standard. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft. Submission The guidance given below is intended to ensure that all comments rec
12、eive efficient and appropriate attention by the responsible BSI committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be compatibl
13、e with Version 6.0 or Version 97 of Microsoft Word for Windows, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirements. All comments submitted should be presented as given in the example below. F
14、urther information on submitting comments and how to obtain a blank electronic version of a comment form are available from the BSI web site at:http:/www.bsi- Template for comments and secretariat observations Date: xx/xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./
15、 Annex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justification for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mai
16、ns connector to which no connection . 6.4 Paragraph 2 te The use of the UV photometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of
17、 Microsoft Corporation. Licensed Copy: London South Bank University, London South Bank University, Mon Apr 16 02:50:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE REFERRED TO AS AN INTERNATI
18、ONAL STANDARD UNTIL PUBLISHED AS SUCH. IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO WHICH REFERENCE MAY BE MA
19、DE IN NATIONAL REGULATIONS. DRAFT INTERNATIONAL STANDARD ISO/DIS 2393 International Organization for Standardization, 2007 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION ISO/TC 45/SC 3 Voting begins on: 2007-03-27 Secretariat: AFNOR Voting terminates on:
20、2007-08-27 Rubber test mixes Preparation, mixing and vulcanization Equipment and procedures Mlanges dessais base de caoutchouc Mlangeage, prparation et vulcanisation Appareillage et mode opratoire Revision of second edition (ISO 2393:1994) ICS 83.060 To expedite distribution, this document is circul
21、ated as received from the committee secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at publication stage. Pour acclrer la distribution, le prsent document est distribu tel quil est parvenu du secrtariat du comit. Le travail de rdaction et de composition d
22、e texte sera effectu au Secrtariat central de lISO au stade de publication. Licensed Copy: London South Bank University, London South Bank University, Mon Apr 16 02:50:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ISO/DIS 2393 ii ISO 2007 All rights reserved PDF disclaimer This PDF file may contain
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25、ers were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. Copyright notice This ISO document is a Draft I
26、nternational Standard and is copyright-protected by ISO. Except as permitted under the applicable laws of the users country, neither this ISO draft nor any extract from it may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, photocopying, recording
27、or otherwise, without prior written permission being secured. Requests for permission to reproduce should be addressed to either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749
28、 09 47 E-mail copyrightiso.org Web www.iso.org Reproduction may be subject to royalty payments or a licensing agreement. Violators may be prosecuted. Licensed Copy: London South Bank University, London South Bank University, Mon Apr 16 02:50:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ISO/DIS 2393
29、 ISO 2007 All rights reserved iii Contents Page Forewordiv 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 Compounding ingredients . 2 5 Preparation of materials. 2 5.1 Batch masses 2 5.2 Weighing tolerances. 2 5.3 Carbon black conditioning. 2 6 Mixing equipment 3 6.1 Mixing mill 3
30、 6.2 Laboratory internal mixer. 3 7 Mixing procedures 5 7.1 Mill mixing procedure. 5 7.2 Laboratory internal mixer mixing procedure . 6 8 Preparation of standard vulcanised sheets for dumb-bell test pieces . 8 8.1 Conditioning of batches. 8 8.2 Vulcanisation equipment 9 8.3 Vulcanisation procedure 1
31、1 9 Preparation of standard vulcanised discs for ring test pieces 12 9.1 Conditioning of batches. 12 9.2 Vulcanisation equipment 14 9.3 Vulcanisation procedure 14 10 Precision statement for both mill and internal mixer 14 10.1 Background . 14 10.2 Precision results. 16 10.3 Mixer conditions 16 10.4
32、Comparison of relative precision 16 10.5 Bias. 17 Annex A (informative) Internal mixer parameters and operating conditions for the three interlaboratory test programs 22 Annex B (informative) Further analysis of the ITP data 25 Bibliography . 27 Licensed Copy: London South Bank University, London So
33、uth Bank University, Mon Apr 16 02:50:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ISO/DIS 2393 iv ISO 2007 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Interna
34、tional Standards is normally carried out through ISO technical committees. Each member 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
35、ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical 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
36、committees is to prepare International Standards. Draft International Standards adopted 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 t
37、he possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 2393 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 3, Raw materials (includ
38、ing latex) for use in the rubber industry. This third edition cancels and replaces the second edition (ISO 2393:1994), which has been technically revised. Licensed Copy: London South Bank University, London South Bank University, Mon Apr 16 02:50:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI DRAFT I
39、NTERNATIONAL STANDARD ISO/DIS 2393 ISO 2007 All rights reserved 1 1 Scope This International Standard specifies the equipment and procedures for the preparation, mixing and vulcanisation of rubber test mixes, as specified in the various appropriate evaluation procedures. 2 Normative references The f
40、ollowing referenced documents are indispensable 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 37, Rubber, vulcanized or thermoplastic Determinat
41、ion of tensile stress-strain properties ISO 289-1, Rubber, unvulcanized Determinations using a shearing-disc viscometer Part 1: Determination of Mooney viscosity ISO/DIS 16581), Natural rubber (NR) Evaluation procedure ISO 2322:1996, Styrene-butadiene rubber (SBR) Emulsion and solution-polymerised t
42、ypes Evaluation procedures ISO 2476, Rubber butadiene (BR) Solution-polymerised types Evaluation procedures ISO/TR 9272:2005, Rubber and rubber products Determination of precision for test method standards ISO 23529, Rubber General procedures for preparing and conditioning test pieces for physical t
43、est methods 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 formulation batch mass aggregate mass, in grams, of all the constituents in a formulation, with the rubber or oil-extended rubber polymer being taken as 100 g, or as specified in the
44、 appropriate evaluation procedure 1) Under preparation. Rubber test mixes Preparation, mixing and vulcanization Equipment and procedures Licensed Copy: London South Bank University, London South Bank University, Mon Apr 16 02:50:12 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ISO/DIS 2393 2 ISO 2007 A
45、ll rights reserved 3.2 batch mass mass of test mix prepared in one mixing operation 3.3 total free volume volume of the mixing chamber with the rotors in place 3.4 nominal mixer capacity proportion of the total free volume which is used in the mixing process NOTE A value of 0,75 times the total free
46、 volume has been found suitable for mixers with tangential rotors. 4 Compounding ingredients The compounding ingredients required for the various standard test formulations shall be in accordance with national or international standards as specified in the appropriate evaluation procedure. 5 Prepara
47、tion of materials 5.1 Batch masses 5.1.1 The standard batch mass for the laboratory mill, in grams, shall be four times the formulation batch mass unless otherwise stated in the appropriate evaluation procedure. NOTE Smaller batch masses are used in some countries. These may not give identical resul
48、ts. 5.1.2 The batch mass for the laboratory internal mixer, in grams, shall be equal to the nominal mixer capacity, in cubic centimetres, multiplied by the compound density. 5.2 Weighing tolerances 5.2.1 The batch mass shall be taken into consideration when determining weighing tolerances. In genera
49、l rubber and carbon black shall be weighed to the nearest 1 g, oil to the nearest 1 g or 1 % whichever is the more accurate, vulcanising agents and accelerators to the nearest 0,02 g and zinc oxide and stearic acid to the nearest 0,1 g. All other ingredients shall be weighed to an accuracy of 1 %. 5.2.2 When the batch mass is less than four times the