1、_- c I CEN ENx2575 87 3r09581 000253b O EUROPEAN STANDARD EN 2575 NORME EUROPENNE EUROPISCHE NORM January 1989 UDC : 778.14.072 : 77.068.25 : 651.925 : 629.7 Key words : Aircraft industry, data recording, photographic recording, information interchange, microfilm, graphic symbols English version Aer
2、ospace series Filming of documents 16 mm microfilm Srie arospatiale Enregistrement de documents sur film Microfilm 16 mm Lut- und Raumfahrt Schriftgutverfilmung Mikrofilm 16 mm This European Standard was accepted by CEN on 1988-03-1 7. CEN members are bound to comply with the requirements of CEN Int
3、ernal Regulations which stipulate the conditionsfor giving this European Standardthe status 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 me
4、mber. This European Standard exists in three official versions (English, French, German). A version in 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 membe
5、rs are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Euro
6、pisches Komitee fr Normung Central Secretariat : Rue Brbderode 2, 6-1 O00 Bruxelles CEN 1989 Copyright reserved to all CEN members Ref. Nr EN 2575 : 1989 E EN 2575 Page 2 CEN EN*2575 89 3404589 0002537 2 * e BRIEF HISTORY This draft European Standard has been prepared by the European Association of
7、Aerospace Manufacturers (AECMA). After enquiries and votes carried out in accordance with the rules of this Association, this draft 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 acc
8、ordance with the Common CEN/CENELEC Rules, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Korway, Portugal, Spain, Sweden, Switzerland and United Kingdom, . F. CEN EN
9、*Z575 89 9-3404549 0002534 4 EN 2575 Page 3 Contents O Introduction 1 2 References Scope and field of application 3 Composition 4 Filming report 5 Presentation 6 Duplicates CEN EN*2575 89 m 3404589 0002539 b m - - EN 2575 Page 4 O Introduction Microfilm is used for the exchange, distribution and fil
10、ing of documents. 1 This standard specifies the requirements to be met in the filming of documents on 16 mm film and preparation to ensure uniform presentation of the microform for the exchange of information in the aerospace industry. Scope and field of application 2 References IS0 543-1974 Cinemat
11、ography - Motion-picture safety film - Definition, testing and marking Graphic symbols for use on equipment - Index and synopsis. IS0 7000-1984 3 Composition 3.1 Film Unperforated safety roll film shall be used, 16 mm in width and 0,l to 0,16 mm in thickness, conforming to IS0 543 and to figure 1. D
12、imensions in mm Figure 1 3.2 Reduction ratio The nominal reduction ratio of 1 : 24 shall be used for filming. o a CEN EN*:2575 87 m 3404587 00025LIO 2 m EN 2575 Page 5 3.3 Frame arrangement See figure 2 (simplex exposure method). * Note - The position of letter F indicates the direction of reading.
13、Figure 2 If the front and back of a document is to be filmed, the back shall be filmed immediately after the front. It is recommended that the first image is resented for identification of the contents of the document filmed, this should be readable to the normal eye. 0 3.4 Graphic symbols Graphic s
14、ymbols 0075 to 0081 according to IS0 7000 may be used for filming of originals of all kinds. Examples of applicaticn : see figure 3. Beginning of reel Graphic symbol IS0 7CO-O076 Repeti ti on Mi sri ng pages of image andior issue (e. g. error) Graphic symbol Grrphic symbol IS0 7000-0081 IS0 7000-008
15、0 Damaged tent. Wrong bi ndf ng (subsequent) Graphic symbol IS0 7000-0078 I ncorrect numbering. Incorrect date (subsequent 1 Graphic symbol Graphic symbol IS0 7000-0077 IS0 7000-0079 Original difficult to read Repeti tion End of rm1 of image Graphic symbol (e. g. on end of film) 10 7000-0075 Graphic
16、 symbol IS0 7000-0080 Figure 3 CEN EN*2575 89 3404589 0002543 4 W .,% c EN 2575 Page 6 3.5 Re trieval method (indexing) The methods specified in 3.5.1 to 3.5.5 may be used for retrieval of microimages or groups of microimages on the film : 3.5.1 Visual sub-division (flash markers) “) To separate ser
17、ies of images optically from each other a sequence of identical Example : see figure 4. frames can be used. X Figure 4 3.5.2 Length counter (odometer) Coarse selection of images can be obtained with a film length counter on the retrieval equipment. 3.5.3 Index lines During filming index lines are in
18、cluded between the individual microfilm images in predetermined positions. This method facilitates coarse selection of images on the retrieval equipment. 3.5.4 Image markers (blips) During filming blips are included below each single image or the first image of a series of images. They make individu
19、al selection of the images or series of images by the retrieval equipment possible. 3.5.5 Binary code SG During filming binary codes are included between or below each single image or the first image of each group of images. Using the retrieval equipment, this method permits the individual selection
20、 of images or series which have been filmed in random sequence. 4 Filming report When filming is completed, a report shall be prepared, certifying complete and correct filming of the originals. The report may also be filmed or deposited separately in paper form. *) The term “flash markers“ appears o
21、nly in the english version e .- = P CEN ENm2575 87 W 340q587 00025i42 b W EN 2575 Page 7 5 Presentation e The presentations specified in 5.1 to 5.3 below may be used, according to the type of application : 5.1 Spool The film is wound onto a film spool which shall be marked according to its content.
22、5.2 Cassette The film is inserted into a single core or two core cassette which shall be marked according to its content. 5.3 Microfilm jacket The microfilm jacket (see figure 5) is of A6 size containing a transparent title area and 5 film channels below. When A4 size originals are filmed, the micro
23、film jacket can accomodate 5 film sections of 14 frames each, a total of 70 frames. O e Dimensions in mm 1 48 -1 Title ara Figure 5 j EN 2575 Page 8 The film is inserted into the film channels of the microfilm jacket and cut to length. The title area is used for identification of the contents of the
24、 microfilm jacket, The title shall be readable to the normal eye. 6 Duplicates 6.1 Film Diazo-film is recommended for duplicates. 6.2 Image polarity d Duplicates shall have light lines and characters on a dark background (negative appearing image). 6.3 Generation For the exchange of information betw
25、een organisations, only duplicates (2nd generation) made directly from the camera film should be used. 6.4 Title area Duplicates produced from microfilm jackets with colour backed title area are not suitable for further duplication. British Standard EN 2575 : 1989 e National appendix A The United Ki
26、ngdom 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 were represented: Society of British Aerospace Companies Limited Ministry of Defence British Airways Civ
27、il Aviation Authority (Airworthiness Division) National appendix B The British Standard corresponding to IS0 543 is BS 5550 Cinematography Subsection 5.1 .I Definition, testing and marking of motion-picture safetyfilm (content identical), There is no corresponding British Standard to IS0 7000. CEN E
28、N*Z575 89 m Amd. No. JC 3404589 0002545 I m u-4 - ,i; Date of issue Text affected 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 into effect on 30 November 1989 O British Sta
29、ndards Institution, 1989 ISBN O 580 17742 4 The following BSI references relate to the work on this standard: Committee reference ACE/-I1 Draft for comment 88170232 DC British Standards Institution. Incorporated by Royal Charter, BSI is the independent national body for the preparation of British St
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31、f information through the BSI Library and Standardline Database; Technical Help to Exporters; and other services. Advice can be obtained from the Enquiry Section, BSI, Milton Keynes MK14 6LE. telephone 0908 221 166, telex 825777. Copyright. Users of British Standards are reminded that copyright subs
32、ists 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 British Standard EN2575:1989 implementing the standard, of necessary details such as symbols and size, type or
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36、cations is in the ES/ Catalogue, supplemented each month by ES/ 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 or ambiguity, is requested to notify BSI without delay in order that the matter may be investigated and appropriate action taken. British Standards Institution e 2 Park Street London W1A 2BS . Telephone 01-629 9000 e Telex 266933 8911 -4-1. 5k-B ACE/-I1
