《BS-5575-1978 IEC-60503-1975.pdf》由会员分享，可在线阅读，更多相关《BS-5575-1978 IEC-60503-1975.pdf（8页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS 5575:1978 IEC 503:1975 Specification for Spools for 1 in (25.4 mm) video magnetic tape UDC 621.798.114:621.397:621.377.623.222*25.4 mm Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:09:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5575:1978 This British Standard, ha
2、ving been prepared under the direction of the Electronic Equipment Standards Industry, was published under the authority of the Executive Board on 28 April 1978 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference EEL/22 Draft for comment 75/30199 DC ISBN
3、 0 580 10075 8 Cooperating organizations The Electronic Equipment Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: British Broadcasting Corporation* Britis
4、h Electrical and Allied Manufacturers Association British Radio Equipment Manufacturers Association* Department of Prices and Consumer Protection Electrical, Electronic, Telecommunication and Plumbing Union Electricity Supply Industry in England and Wales Electronic Components Board Electronic Engin
5、eering Association Post Office Radio and Electronic Component Manufacturers Federation* Scientific Instrument Manufacturers Association* The organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entrusted with the preparation
6、 of this British Standard: British Kinematograph Sound and Television Society Council for Educational Technology Independent Broadcasting Authority Independent Television Companies Association Industrial Council for Educational Training and Technology (ICETT) National Educational Closed Circuit Tele
7、vision Association Royal Television Society Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:09:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5575:1978 BSI 12-1999i Contents Page Cooperating organizationsInside front cover
8、 National forewordii 1Scope1 2Professional broadcast use1 3Professional non-broadcast use1 4Preferred flange diameters1 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:09:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5575:1978 ii BSI 12-1999 Nat
9、ional foreword This British Standard has been prepared under the direction of the Electronic Equipment Standards Committee. It is identical with IEC Publication 503 “Spools for 1 in (25.4 mm) video magnetic tape” published by the International Electrotechnical Commission (IEC). For each of the follo
10、wing International Standards referred to in the text, there is a corresponding British Standard; these are as listed below: 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. Compliance
11、with a British Standard does not of itself confer immunity from legal obligations. International StandardCorresponding British Standard ISO 1860:1974BS 3732:1972 Spools for magnetic tape for instrumentation applications (clauses 1 and 2) ISO 1858:1977aBS 3732:1972 (clauses 1 and 3) a Since the publi
12、cation of IEC 503, ISO Recommendation 1858 (ISO/R 1858) has been published as ISO 1858. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may hav
13、e had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:09:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5575:1978 BSI 12-19991 1 Scope This standard specifies the types of reels to be used o
14、n video tape machines using 1 in (25.4 mm) tape. It refers to professional machines for broadcast or non-broadcast use. 2 Professional broadcast use In the case of professional broadcast use, the spools shall conform to ISO Standard 1860 for precision reels. The preferred flange diameters are listed
15、 in Clause 4 below. 3 Professional non-broadcast use In the case of professional non-broadcast use, the spools shall conform to ISO Recommendation 1858. The preferred flange diameters are listed in Clause 4 below. 4 Preferred flange diameters1) Nominal values Millimetres203229248267318356 Inches8991
16、01214 Tolerances For professional broadcast use: in conformity with ISO/IS-1860 For professional non-broadcast use: in conformity with ISO/R-1858 1) The nominal metric values have been rounded off and the appropriate tolerances have been adjusted to provide an agreement with inch sizes. Licensed Cop
17、y: sheffieldun sheffieldun, na, Mon Dec 04 13:09:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 blank Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:09:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5575:1978 BSI 12-1999 Publications referred to See national foreword Licensed Copy: she
18、ffieldun sheffieldun, na, Mon Dec 04 13:09:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5575:1978 IEC 503:1975 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on s
19、tandards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the qual
20、ity of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 740
21、0. BSI offers 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: 020 8996 9001.
22、Fax: 020 8996 7001. In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and int
23、ernational standards 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: 020 8996 7111. Fax: 020 8996 7048. Subscribing members of BSI
24、 are kept up to date with standards developments and receive substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Copyright Copyright subsists in all BSI publications. BSI also hol
25、ds the copyright, in the UK, of the 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, recordin
26、g or otherwise without prior written 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 pr
27、ior 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: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:09:29 GMT+00:00 2006, Uncontrolled Copy, (c) BSI