08-30167722-DC.pdf
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1、a Date: 18 September 2008 Origin: National Latest date for receipt of comments: 30 NOVEMBER 2008 Project no.: 2007/01595 Responsible committee: SW/136/-/7 Saddle trees Interested committees: Title: Draft BS 7875 Synthetic saddle trees - Specification Supersession information: If this document is pub
2、lished as a standard, the UK implementation of it will supersede BS 7875:1996 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 NOT BE REGARDED OR USED AS A BRITI
3、SH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 NOVEMBER 2008. 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 commenting. No copying is allowed,
4、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 such an organization by committee
5、 members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email . British, International and foreign standards are also available from BSI Customer Services. Information on the co-operating organizations represented on the committees referenced a
6、bove 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:/. Direct tel: 020 8996 7170 Responsib
7、le Committee Secretary: Ms Justine Cooper (BSI) E-mail: 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 8.0 DPC: 08/30167722 DC Licensed Copy: London South Bank University, South Bank University, 16/11/2
8、008 11:56, Uncontrolled Copy, (c) BSI b Introduction Your comments on this draft are invited and will assist in the preparation of the resulting British Standard. If no comments are received to the contrary, this draft may be implemented unchanged as a British Standard. Please note that this is a dr
9、aft and not a typeset document. Editorial comments are welcomed, but you are advised not to comment on detailed matters of typography and layout. Submission of comments The guidance given below is intended to ensure that all comments receive efficient and appropriate attention by the responsible BSI
10、 committee. This draft British Standard is available for review and comment online via the BSI British Standards Draft Review system at http:/. Registration is free and takes less than a minute. Once you have registered on the Draft Review system you will be able to review all current draft British
11、Standards of national origin and submit comments on them. You will also be able to see comments made on current draft standards by other interested parties. When submitting comments on a draft you will be asked to provide both a comment (i.e. justification for change) and a proposed change. All comm
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13、BSI British Standards Draft Review system, or to a specific draft hosted on the system, may be distributed to other interested parties so that they may register and submit comments. It is not necessary to purchase a copy of the draft in order to review or comment on it; however, additional copies of
14、 this draft may be purchased from BSI, Tel: +44(0) 20 8996 9001 or email: . Drafts and standards are also available in PDF format for immediate download from the BSI Shop http:/ Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:56, Uncontrolled Copy, (c) BSI WARNING.
15、THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 NOVEMBER 2008. 1 BS 7875:2009 Synthetic saddle trees Specification Contents Foreword 2 1 Scope 3 2 Normative references 3 3 Terms and definition 3 4 Identification 3 5 Dimensions 3 6 Materials
16、 4 7 Strength 4 8 Symmetry 5 9 Marking 7 Annexes Annex A (normative) Method of test for the deflection of saddle trees 8 Annex B (normative) Method of test for the impact resistance of saddle trees 10 Bibliography 11 List of figures Figure 1 Angle dimension for saddle trees 4 Figure 2 Tree datum poi
17、nts 5 Figure 3 Example of a symmetry measuring jig 6 Figure A.1 Datum points for saddle trees 9 List of tables Table 1 Identification and dimensions 3 Table 2 Symmetry 6 Editorial note: Particular attention is drawn to Subclause 6.2. Specific comments on the types of steel used in gullets are welcom
18、ed. Licensed Copy: London South Bank University, South Bank University, 16/11/2008 11:56, Uncontrolled Copy, (c) BSI WARNING. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 NOVEMBER 2008. 2 Foreword Publishing information This British Stan
19、dard is published by BSI and came into effect on XX Month 200X. It was prepared by Subcommittee SW/136/-/7, Saddle trees. A list of organizations represented on this committee can be obtained on request to its secretary. Supersession This British Standard supersedes BS 7875:1996, which is withdrawn.
20、 Presentational conventions The provisions of this standard are presented in roman (i.e. upright) type. Its requirements are expressed in sentences in which the principal auxiliary verb is “shall”. Commentary, explanation and general informative material is presented in smaller italic type, and does
21、 not constitute a normative element. Contractual and legal considerations 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 cannot confer immunity from legal obligations. Lice
22、nsed Copy: London South Bank University, South Bank University, 16/11/2008 11:56, Uncontrolled Copy, (c) BSI WARNING. THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 30 NOVEMBER 2008. 3 1 Scope This British Standard specifies requirements for
23、saddle trees made from synthetic materials for saddles for general use (jumping, showing, hacking dressage and similar activities) but excludes saddle trees for use with saddles for racing and side saddle. NOTE BS 6635 specifies requirements for saddle trees made from wood. 2 Normative references Th
24、e following 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. BS 641, Dimensions of small rivets for general purp
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