1、- CEN EN*2547 87 M 3404587 0002523 9 H British Standard EN 2547 : 1989 UDC 629.7 :651.004.4 :778.14.072 e 0 British Standards Institution. No part of this publication may be photocopied or otherwise reproduced without the prior permission in writing of BSI British Standard Aerospace Series : Specifi
2、cation for Filming of documents. Microfilm 105 mm (Microfiche A6) Srie arospatiale. Enregistrement de documents sur film. Microfilm 105 mm (Microfiche A6) Luft- und Raumfahrt- Reihe. Schriftgutverfilmung. Mikrofilm 105 mm (Mikroplanfilm A6) e Contents Page National foreword Front cover Brief history
3、 2 Text of EN 2547 3 National appendix A Inside back cover National amendix B Inside back cover Cooperating organizations O Back cover National foreword This British Standard has been prepared under the direction of the Aerospace Standards Policy Committee and is the English language version of EN 2
4、547 Aerospace series. Filming of documents. Microfilm 105 mm (Microfiche A6), published by the European Committee for Standardization (CENI. EN 2547 was produced as a result of international discussion in which the UK took an active part. Compliance with a British Standard does not of itself confer
5、immunity from legal obligations. This European Standard EN 2547 has the status of a British Standard. British Standards Institution - - CEN EN*25q7 89 m 3L104589 0002522 O m EUROPEAN STANDARD 0 NORME EUROPENNE EUROPAISCHE NORM EN 2547 April 1987 UDC 629.7 : 651 r004.4 : 778.14.072 Key words : Reprod
6、uction, recording characteristics, photographic recording, technical drawings microfilm, micrographics, files, document storage. English version * Aerospace series Filming of documents Microfilm 105 rnm (Microfiche A6) Srie arospatiale Luft- und Raumfahrt Schriftgutverfilmung Mikrofilm 105 mm (Mikro
7、planfilm A6) Enregistrement de documents sur film Microfilm 105 nim (Micrcfiche AG) This European Standard was accepted by CEN on 1986-08-1 2. CEN membersarehund to comply with the requirenienrs of CEN Internal Regulations which stipulate the conditions (or rjlviny this European Standard the status
8、of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). k
9、version io any other language made by translation under the responsibility of a CEN member into its own language and notified to CEN Cenrral Secrerariat has the same status as the officiai versions. CEN members are the national .standards organizations of Austria, Belgtum, Denmark, Finland, France,
10、Germany, Greece, Ireland, Italy, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europaisches Komitee fr Normung Central Secretariat : Rue Brderode 2, 8-1000 Bruxelles e CEN 1987Copyriyht reserved
11、 to all CEN members CEN EN*2547 87 3404589 0002523 2 EN 2547 Page 2 rl Brief history This draft European Standard hac beer; prepared by thc European Assoc.iation of Aerospace Constructors (AECI*L) . After enquiries and votes carried out in accordance with the rules of this Association it has success
12、ively received the approval of the National Associations and the Offi.cia1 Services of the member countries of AECMA, prior to its presentation to C.E.N. According to the Common CEN/CENELEC Rules, following countries are bound to implement this European Standard: Belgium, France, Germany, Italy, Net
13、herlands, Spain, United Kingdom. O Introduction Microfilm ir; used for the exchange, distribution arid filing of documents. 1 Scope and field of application This standard specifies the deviations from IS0 2707 1) necessary for aerospace application. It shall be applied for filming documents on 105 m
14、m microfilm (A6 microficha) to ensure uniform presentation of the microform for the exchange of information in the aerospace industry. 2 Reference IS0 2707-1080 Micrographics - TrancpareBt A6 size microfiche of uniform division - image arrangenients N9 1 and NI 2. 3 Composition 3.1 Reduction ratio T
15、he reduction ratio of 1 : 24 (nominal value) shall be used for filming. 3.2 Frame arrangement It corresponds to the arrangement of irnayes N“.2 of IS0 2707 : - Single frames : 7 rows x 14 columns = 98 frames; - Double frames : 7 rows x 7 columns = 49 frames. A cornhination of single and double frame
16、s is possible. 3.3 Image sequence The images shall be arranged in horizontal image sequence. The first microimage is located at the top left hand corner of the grid. Subsquent microimages appear in sequence from left to right and from top to bottom advancing by rows (see Figure). - 1) Consequently,
17、the data not given in this standard is to be obtained from IS0 2707. P . CEN ENm2547 89 m 3404589 0002525 b m EN 2547 Page 4 Image sequence i _ 4 Duplicates 4.1 Film Diazo film is recornmended for duplicates 4.2 Image polarity Duplicates shall have light lines and characters on a dark background (ne
18、gative - appearing image). 4.3 Generation For the exchange of information between organisations, only duplicates (2nd generation) rnade directly from the amera filin should be used. 4.4 Title area Duplicates with a colour backed title area are not suitable for further duplication. =.- - -7 B - a CEN
19、 EN*25Li7 89 W 3YOLi589 000252b 8 = British Standard EN 2547 : 1989 0 National appendix A The United Kingdom participation in the preparation of this European Standard was entrusted by the Aerospace Standards Policy Committee (ACE/-) to Technical - Committee ACE/-/I , upon which the following bodies
20、 were represented: Society of British Aerospace Companies Limited Ministry of Defence British Airways Civil Aviation Authority (Airworthiness Division) Coopted member National appendix B The British Standard corresponding to IS0 2707, referred to in clause 2, is BS 4187 Microfiche Part 1 Specificati
21、on for formats of 60 and 98 frames (content identical). CEN EN*2547 89 = 3q01-1583 0002527 T W British Standard EN 2547 : 1989 This British Standard, having been prepared under the direction of the Aerospace Standards Policy Committee, was published under the authority of the Board of BSI and comes
22、into effect on 31 October 1989 O British Standards Institution, 1989 ISBN O 580 17745 9 The following BSI references relate to the work on this standard: Committee reference ACE/-/I Draft for comment 84176074 DC British Standards Institution. Incorporated by Royal Charter, BSI is the independent nat
23、ional body for the preparation of British Standards, It is the UK member of the International Organization for Standardization and UK sponsor of the British National Committee of the International Electrotechnical Commission. In addition to the preparation and promulgation of standards, BSI offers s
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25、h Standards are reminded that copyright subsists in all BSI publications. No part of this publication may be reproduced in any form without the prior permission in writing of BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols an
26、d size, type or grade designations. Enquiries should be addressed to the Publications Manager, BSI, Linford Wood, Milton Keynes MK14 6LE. The number for telephone enquiries is 0908 220022 and for telex 825777. Contract requirements. A British Standard does not purport to include all the necessary pr
27、ovisions of a contract. Users of British Standards are responsible for their correct application. Revision of British Standards. British Standards are revised, when necessary, by the issue either of amendments or of revised editions. It is important that users of British Standards should ascertain t
28、hat they are in possession of the latest amendments or editions. Automatic updating service. BSI provides an economic, individual and automatic standards updating service called PLUS. Details are available from BSI Enquiry Section at Milton Keynes, telephone 0908 221 166, telex 825777. Information o
29、n all BSI publications is in the BSI Catalogue, supplemented each month by BSI News which is available to subscribing members of BSI and gives details of new publications, revisions, amendments and withdrawn standards. Any person who, when making use of a British Standard, encounters an inaccuracy o
30、r ambiguity, is requested to notify BSI without delay in order that the matter may be investigated and appropriate action taken. Cooperating organizations The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards organiz
31、ations of the following Western European countries. Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliito, r.y. France Association francaise de normalisation Germany Greece Hellenic Organization for S
32、tandardization Ireland Italy Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund . Portugal Instituto Portugus da Qualidade Spain Instituto Espaol de Normalizacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United King
33、dom British Standards Institution Deutsches Institut fr Normung e.V. National Standards Authority of Ireland Ente Nazionale Italiano di Unificazione Amendments issued since publication Amd. No. Date of issue Text affected British Standards Institution . 2 Park Street London WIA 2BS Telephone 01-629 9000 - Telex 266933 8910-3-1.2k-B ACE/-/I
