BS MA 28-1973 Specification for dimensions of tracks for mast and deck fittings《桅杆及甲板配件的导轨尺寸规范》.pdf

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1、BRITISH STANDARD MARINE SERIES BS MA 28:1973 Specification for Dimensions of tracks for mast and deck fittings UDC 629.12.014.2 589.62BSMA28:1973 This BritishStandard, having been approved by the Shipbuildingand Marine IndustryStandards Committee,was published underthe authority of the Executive Boa

2、rd on 11October1973 BSI02-2000 The following BSI references relate to the work on this standard: Committee reference SME/8 Draft for comment 71/38516 ISBN 0 580 07576 1 Foreword This BritishStandard has been prepared under the authority of the Shipbuilding and Marine Industry Standards Committee and

3、 is based upon a proposal by the Ship and Boat Builders National Federation. This standard has been prepared in order to meet a growing need for interchangeability of slides used in various track and slide fittings on board yachts. A wide adoption of these dimensions will also benefit both manufactu

4、rer and user in rationalizing a principal feature of design production. Two basic forms of track section have been covered, namely a flattened “C” section for internal fitting and a stub “T” for external fitting. Two sizes are given for both sections in order to meet the great majority of present ne

5、eds in yachting. A third large size has been added for the external fitting to meet a minor but significant need of the largest yachts. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application.

6、 Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may

7、 have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSMA28:1973 BSI 02-2000 i Contents Page Foreword Inside front cover 1 Scope 1 2 Types, dimensions and tolerances 1 Figure 1 Internal f

8、itting 1 Figure 2 External fitting 1 Figure 3 Large external fitting 1ii blankBSMA28:1973 BSI 02-2000 1 NOTEUsers of this BritishStandard Marine Series, should note that while observing the requirements of the standard they should at the same time ensure compliance with such statutory requirements,

9、rules and regulations as may be applicable to the individual ship concerned. 1 Scope This BritishStandard specifies the dimension of tracks for mast and deck fittings, which are necessary to ensure the interchangeability of slides. The standard covers two basic forms of track appropriate for interna

10、l and external fitting in two and three sizes, respectively. 2 Types, dimensions and tolerances The dimensions of the finished track shall correspond to those shown in Figure 1, Figure 2, or Figure 3. Tolerances (for dimensions other than maximum or minimum) shall be+0.5mm,0.5mm. Figure 1 Internal f

11、itting Figure 2 External fitting Figure 3 Large external fitting2 blankBSMA28:1973 BSI 02-2000 BSI Certification Trade Mark The Kitemark The BritishStandards Institution is the owner of a registered certification trade mark. It is usually associated with the words “approved to BritishStandard” as sh

12、own below, the number of the relevant BritishStandard being added. This mark may be used only by those licensed under the certification mark scheme operated by BSI. The presence of this mark on or in relation to a product is an assurance that the goods have been produced under a system of supervisio

13、n, control and testing, operated during manufacture and including periodical inspection of the manufacturers works in accordance with the certification mark scheme of BSI designed to ensure compliance with a BritishStandard. Further particulars of the terms of licence may be obtained from the Qualit

14、y Assurance Department, BritishStandards Institution, Maylands Avenue, Hemel Hempstead, Herts.HP24SQBS MA 28:1973 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standa

15、rds in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of

16、our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel:02089969000. Fax:02089967400. BSI offers

17、members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services. Tel:02089969001. Fax:02089967001.

18、In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as BritishStandards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards

19、through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel:02089967111. Fax:02089967048. Subscribing members of BSI are kept up to date with s

20、tandards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel:02089967002. Fax:02089967001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of t

21、he publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior writ

22、ten permission from BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel:02089967070.

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