《07-30170161-DC.pdf》由会员分享，可在线阅读，更多相关《07-30170161-DC.pdf（7页珍藏版）》请在三一文库上搜索。
1、a Date: 7 August 2007 Origin: International Latest date for receipt of comments: 30 November 2007 Project no.: 2007/02189 Responsible committee: CII/24 Raw materials for the aluminium industry Interested committees: Title: Draft BS ISO 12986-2:2005/AMD Carbonaceous materials used in the production o
2、f aluminium Prebaked anodes and cathode blocks Part 2: Determination of flexural strength by the four-point method 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 nation
3、al standard which may be affected, please notify the secretary (contact 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 November 2007. This draft is issued to allow comments from interested parties; all comments wil
4、l be given consideration prior to publication. No acknowledgement will 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 w
5、ithin a nominating organization for briefing purposes. Electronic circulation 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, Inter
6、national and foreign standards are also available from BSI Customer Services. 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 committe
7、es referenced above may be obtained from the responsible committee secretary. 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:
8、020 8996 7009 Responsible Committee Secretary: Committee Service Centre (BSI) E-mail: cscbsi- 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: 07/30170161 DC Licensed Copy: London South Bank Unive
9、rsity, London South Bank University, Sat Aug 18 09:50:28 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 con
10、sequent standard. Comments submitted will be reviewed 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
11、the UK will approve this draft. If the international standard 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 g
12、iven below is intended to ensure that all comments receive 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
13、given on the front cover. Comments should be compatible 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 submitte
14、d should be presented as given in the example below. Further 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
15、xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./ 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 ambiguou
16、s and needs clarifying. Amend to read . so that the mains 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 a
17、re registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:50:28 GMT+00:00 2007, Uncontrolled Copy, (c) BSI THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJE
18、CT TO CHANGE AND MAY NOT BE REFERRED TO AS AN INTERNATIONAL 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 POT
19、ENTIAL TO BECOME STANDARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS. RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. DRAFT AMENDMENT ISO 12986-2:2005/DAmd 1
20、International Organization for Standardization, 2007 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION ISO/TC 226 Voting begins on: 2007-08-07 Secretariat: SN Voting terminates on: 2008-01-07 Carbonaceous materials used in the production of aluminium Prebake
21、d anodes and cathode blocks Part 2: Determination of flexural strength by the four-point method AMENDMENT 1 Produits carbons utiliss pour la production de laluminium Anodes prcuites et blocs cathodiques Partie 2: Dtermination de la rsistance la flexion par la mthode quatre points AMENDEMENT 1 ICS 71
22、.100.10 In accordance with the provisions of Council Resolution 15/1993 this document is circulated in the English language only. Conformment aux dispositions de la Rsolution du Conseil 15/1993, ce document est distribu en version anglaise seulement. To expedite distribution, this document is circul
23、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
24、e texte sera effectu au Secrtariat central de lISO au stade de publication. Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:50:28 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ISO 12986-2:2005/DAmd 1 ii ISO 2007 All rights reserved PDF disclaimer This PDF file m
25、ay contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the res
26、ponsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creat
27、ion parameters 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 i
28、s a Draft International 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,
29、 recording 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
30、+ 41 22 749 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, Sat Aug 18 09:50:28 GMT+00:00 2007, Uncontrolled Copy, (c) BSI I
31、SO 12986-2:2005/DAM 1 ISO 2007 All rights reserved iii Foreword 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.
32、 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 ISO, also take part in the work. ISO collaborates closely with the Interna
33、tional 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 committees is to prepare International Standards. Draft International Stan
34、dards 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 the possibility that some of the elements of this document may be the subje
35、ct of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Amendment 1 to ISO 12986-2:2005 was prepared by Technical Committee ISO/TC 226, Materials for the production of primary aluminium. Licensed Copy: London South Bank University, London South Bank Univ
36、ersity, Sat Aug 18 09:50:28 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ISO 12986-2:2005/DAM 1 iv ISO 2007 All rights reserved Introduction The reason for this amendment is to include precision figures. The method is based on DIN 51944 and the precision figures in this amendment are identical with th
37、e figures in DIN 51944. Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:50:28 GMT+00:00 2007, Uncontrolled Copy, (c) BSI DRAFT AMENDMENT ISO 12986-2:2005/Damd 1 ISO 2007 All rights reserved 1 AMENDMENT 1 Corrections and inclusion of precision figures Page 4,
38、equation 3 Replace equation 3 with the following: W Flse bB max 2 = (3) Page 4, equation 4 Replace equation 4 with the following: 2 max 3 h F bB = (4) Page 5 Add the following clause 10: 10 Precision The uncertainty of measurement when testing with this method of testing is approximately 5 % for a c
39、onfidence level of 95 % under repeatability conditions for test pieces with dimensions of 30 mm x 110 mm. Carbonaceous materials used in the production of aluminium Prebaked anodes and cathode blocks Part 2: Determination of flexural strength by the four-point method Licensed Copy: London South Bank University, London South Bank University, Sat Aug 18 09:50:28 GMT+00:00 2007, Uncontrolled Copy, (c) BSI