07-30164973-DC.pdf
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1、a Date: 20 April 2007 Origin: International Latest date for receipt of comments: 31 July 2007 Project no.: 2007/00973 Responsible committee: EPL/501 Electronic assembly technology Interested committees: Title: Draft BS EN 61249-2-31 ED.1 Materials for printed boards and other interconnecting structu
2、res - Part 2-31: Reinforced base materials clad and unclad for high frequency application - Halogenated modified or unmodified resin system, woven E-glass laminated sheets of defined relative permittivity (equal or less then 4.1 at 1 GHz) and flammability (vertical burning test), copper- clad Supers
3、ession 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 (contact details below). WARNING: THIS IS A DRAFT AND MUST
4、 NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 July 2007. This draft is issued to allow comments from interested parties; all comments will be given consideration prior to publication. No acknowledgement will normally be sent. See overleaf for information on comm
5、enting. 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 circulation is limited to dissemination by e-mail within su
6、ch 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 Services. British Standards on CD or Online are available
7、 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 secretary. Cross-references The British Standards which im
8、plement 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 7205 Responsible Committee Secretary: Mr A Ashrafi (BSI) E-mail: asghar.ashrafibsi- Draft for Public Comment Head Of
9、fice 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: 07/30164973 DC Licensed Copy: London South Bank University, London South Bank University, Mon May 07 12:31:20 GMT+00:00 2007, Uncontrolled Copy, (c) BSI b Introduction This draft
10、standard is based on international discussions in which the UK has taken an active part. Your comments on this draft are welcome and will assist in the preparation of the consequent standard. If no comments are received to the contrary, then the UK will approve this draft. There is a high probabilit
11、y that this text could be adopted by CENELEC as a reference document for harmonization or as a European Standard. Recipients of this draft are requested to comment on the text bearing in mind this possibility. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons
12、) or positive vote on this draft. Submission The guidance given 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 electronica
13、lly, to the Responsible Committee Secretary at the address 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
14、 adhere to these format requirements. All comments submitted 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 s
15、ecretariat observations Date: xx/xx/200x Document: ISO/DIS 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 c
16、omment submitted 3.1 Definition 1 ed Definition is ambiguous 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
17、. Delete reference to UV photometer. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed Copy: London South Bank University, London South Bank University, Mon May 07 12:31:20 GMT+00:00 2007, Uncontrolled Copy, (c) BSI FORM CDV (IEC) 2005-09-2
18、3 91/671/CDV COMMITTEE DRAFT FOR VOTE (CDV) PROJET DE COMIT POUR VOTE (CDV) Project number IEC 61249-2-31, Ed. 1 Numro de projet IEC/TC or SC: TC 91 CEI/CE ou SC: Secretariat / Secrtariat Japan Submitted for parallel voting in CENELEC Soumis au vote parallle au CENELEC Date of circulation Date de di
19、ffusion 2007-04-13 Closing date for voting (Voting mandatory for P-members) Date de clture du vote (Vote obligatoire pour les membres (P) 2007-09-14 Also of interest to the following committees Intresse galement les comits suivants Supersedes document Remplace le document 91/670/NP Functions concern
20、ed Fonctions concernes Safety Scurit EMC CEM Environment Environnement Quality assurance Assurance qualit CE DOCUMENT EST TOUJOURS LTUDE ET SUSCEPTIBLE DE MODIFICATION. IL NE PEUT SERVIR DE RFRENCE. LES RCIPIENDAIRES DU PRSENT DOCUMENT SONT INVITS PRSENTER, AVEC LEURS OBSERVATIONS, LA NOTIFICATION D
21、ES DROITS DE PROPRIT DONT ILS AURAIENT VENTUELLEMENT CONNAISSANCE ET FOURNIR UNE DOCUMENTATION EXPLICATIVE. THIS DOCUMENT IS STILL UNDER STUDY AND SUBJECT TO CHANGE. IT SHOULD NOT BE USED FOR REFERENCE PURPOSES. RECIPIENTS OF THIS DOCUMENT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF
22、ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION. Titre : Title : IEC 61249-2-31, Ed. 1: Materials for printed boards and other interconnecting structures - Part 2- 31: Reinforced base materials clad and unclad for high frequency application Halogenated modi
23、fied or unmodified resin system, woven E-glass laminated sheets of defined relative permittivity (equal or less than 4.1 at 1 GHz) and flammability (vertical burning test), copper-clad Note dintroduction Introductory note Ce CDV est diffus selon la procdure indique dans le doc. AC/8/2003 selon laque
24、lle un NP est diffus en parallle avec son CDV. This CDV is issued in application of the procedure in AC/8/2003 for the simultaneous submission of a NP and its CDV. If the 91/670/NP is accepted, this CDV ballot will continue and the project will be considered as being at CDV stage. If the NP is not a
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