BS EN 2484-1989 Specification for microfilming of drawings - Aperture card for 35 mm microfilm《图纸摄制成缩微胶片的规范 35mm缩微胶片穿孔卡》.pdf
《BS EN 2484-1989 Specification for microfilming of drawings - Aperture card for 35 mm microfilm《图纸摄制成缩微胶片的规范 35mm缩微胶片穿孔卡》.pdf》由会员分享,可在线阅读,更多相关《BS EN 2484-1989 Specification for microfilming of drawings - Aperture card for 35 mm microfilm《图纸摄制成缩微胶片的规范 35mm缩微胶片穿孔卡》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARD AEROSPACE SERIES BS EN 2484:1989 Specification for Microfilming of drawings Aperturecardfor 35mm microfilm This European StandardEN2484 has the status of a British Standard. UDC 778.14.072:681.327.4:77.068.26:744.4:629.7BSEN2484:1989 This British Standard, having been prepared under
2、 the directionof the Aerospace Standards Policy Committee,waspublished underthe authority of the BoardofBSI and comes into effecton 31 October1989 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/-/1 Draft for comment 88/70233 DC ISBN 0 580 17741
3、6 Cooperating organizations The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards organizations of the following Western European countries. Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normal
4、isation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Icelandic Council for Standardization Ireland National Standards Autho
5、rity of Ireland Italy Ente Nazionale Italiano di Unificazione Luxemburg Inspection des travails et des mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Instituto Espaol de Normalizacin Sweden Standardiseringskomm
6、issionen i Sverige Switzerland Association suisse de normalisation UnitedKingdom British Standards Institution Amendments issued since publication Amd. No. Date of issue CommentsBSEN2484:1989 BSI 01-2000 i Contents Page Cooperating organizations Inside front cover National foreword ii Brief history
7、2 Text of EN 2484 3 National appendix A Inside back cover National appendix B Inside back coverBSEN2484:1989 ii BSI 01-2000 National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN2484“Aerospac
8、e series. Microfilming of drawings. Aperture card for35mm microfilm”, published by the European Committee for Standardization (CEN). EN2484 was produced as a result of international discussion in which the UK took an active part. A British Standard does not purport to include all the necessary provi
9、sions of a contract. Users of British Standards are responsible for their correct application. 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, pages i and ii, theEN title page
10、, pages 2 to 8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN2484 January 1989 UDC: 778.
11、14.072:681.327.4:77.068.26:744.4:629.7 Key words: Aircraft industry, microfilm, information interchange, aperture cards, technical drawings English version Aerospace series Microfilming of drawings Aperture card for35mm microfilm Srie arospatiale Microfilmage des dessins Carte fentre pour microfilm3
12、5 mm Luft- und Raumfahrt Zeichnungsverfilmung Mikrofilm-Lochkarte fr Film35 mm This European Standard was accepted by CEN on1988-03-17. CEN members are bound to comply with the requirements of CEN Internal Regulations which stipulate the conditions for giving this European Standard the status of a n
13、ational standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in
14、 any other language made by translation under the responsibility of a CEN member into its own language and notified to CEN Central Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Gr
15、eece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels CEN 1989 Copyright
16、reserved to all CEN members Ref. No. EN 2484:1989 EEN2484:1989 BSI 01-2000 2 Brief history This draft European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). After enquiries and votes carried out in accordance with the rules of this Association, this draft
17、 has successively received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. In accordance with the Common CEN/CENELEC Rules, the following countries are bound to implement this European Standard: Austria, Belgium,
18、 Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. Contents Page Brief history 2 0 Introduction 3 1 Scope and field of application 3 2 References 3 3 Requirements 3 4 Control and identification
19、characteristics 4 5 Designation 7 6 Location of microimage 7 7 Punching of data 7 Figure Microfilm aperture card card codeA ofcode No.1 as perTable 1 (not to scale) 5 Table 1 4 Table 2 Column allocation and data entryforcardcode A 6 Table 3 Security classification code 6 Table 4 Language code 7 Tabl
20、e 5 Code number for document size 7EN2484:1989 BSI 01-2000 3 0 Introduction Technical drawings and associated documents can be transferred to microfilm for simplified handling in the exchange of information within and between organizations. By combining a slave card with an aperture card containing
21、a microimage on35mm film, the information content is increased, handling of the aperture card is reduced, and it is possible to use the slave card for data processing. 1 Scope and field of application This standard specifies the aperture card for35mm microfilm and the column allocation and data entr
22、y of the control and identification characteristics for aerospace using card code A (seeclause4). 2 References ISO 1681:1973, Information processing Unpunched paper cards Specification. ISO3272-3:1975, Microcopying of technical drawings and other drawing office documents Part3 Unitized35mm microfilm
23、 carriers. ISO 6586:1980, Data processing Implementation of theISO7-bit and8-bit coded character sets on punched cards. 3 Requirements 3.1 Unprinted microfilm aperture card The microfilm aperture card shall conform toISO1681 andISO3272-3. 3.2 Printed microfilm aperture card All printed data shall co
24、nform to theFigure and appear on the front face of the microfilm aperture card. The identification of the card manufacturer shall appear outside the data area at the lower card edge only. 3.3 Identification The identification of the microfilm aperture card shall consist of: standard number EN2484, c
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