1、BRITISH STANDARD BS ISO 9923:1994 Implementation of ISO 9923:1994 Micrographics Transparent A6 microfiche ImagearrangementsBSISO9923:1994 This British Standard, having been prepared under the directionof the Information and Documentation Technology Standards Policy Committee, waspublished under the
2、authorityof the Standards Boardand comes into effect on 15August 1994 BSI 08-1999 The following BSI references relate to the work on this standard: Committee reference DOT/16 Draft for comment 89/95887 DC ISBN 0 580 23224 7 Committees responsible for this British Standard The preparation of this Bri
3、tish Standard was entrusted by the Information and Documentation Standards Policy Committee (DOT/-) to Technical Committee DOT/16, upon which the following bodies were represented: British Computer Society British Library British Office Technology Manufacturers Alliance British Photographic Associat
4、ion Computer Graphics Suppliers Association Cranfield Imaging and Document Management User Group Her Majestys Stationery Office KODAK Limited Library Association London Borough of Bromley National Centre for Information Media and Technology (Cimtech) Records Management Society United Kingdom Associa
5、tion for Information and Image Management The following bodies were also presented in the drafting of the standard, through subcommitties and panels: Association of Phtographic Technicians Federation of the Electronics Industry Ministry of Defence Amendments issued since publication Amd. No. Date Co
6、mmentsBSISO9923:1994 BSI 08-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword iv Text of ISO 9923 1BSISO9923:1994 ii BSI 08-1999 National foreword This British Standard reproduces verbatim ISO 9923:1994 and implements it as the UK national standard. This Br
7、itish Standard is published under the direction of the Information and Documentation Standards Policy Committee whose Technical Committee DOT/16 has the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or pro
8、posals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. NOTEInternational and European Standards, as well as overseas standards, are available from Customer Services, Publications, BSI, Linford Wood, Milton Keynes, MK1
9、4 6LE. 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 with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document com
10、prises a front cover, an inside front cover, pages i and ii, theISOtitle page, pages ii to iv, pages 1 to 19 and abackcover. 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.ISO9923:1
11、994(E) ii BSI 08-1999 Contents Page Foreword iv 1 Scope 1 2 Normative references 1 3 Definitions 1 4 Basic characteristics of microfiche 1 4.1 Physical characteristics 1 4.2 Heading 2 4.3 Identification of the image frames 3 4.4 Cut mark 3 5 Frame formats of 49 and 98 (most commonly used for source
12、documents) 3 5.1 Dimensions and image arrangements 3 5.2 Lower and side margins 4 5.3 Microimage placement and orientation 4 5.4 Reduction ratio 4 5.5 Technical target 4 5.6 Index 4 5.7 Microfilming large documents 4 5.8 Symbols 4 6 Frame formats of 270 and 420 (most commonly used for COM) 4 6.1 Dim
13、ensions and image arrangements 4 6.2 Lower and side margins 4 6.3 Microimage placement and orientation 5 6.4 Reduction ratio 5 6.5 Index 5 7 Single-frame format (most commonly used with cartography and largedrawings) 5 7.1 Dimensions 5 7.2 Lower and side margins 5 8 Processing and storage 5 9 Contro
14、l of microimage quality 6 9.1 Microfiche of source documents 6 9.2 COM microfiche 6 10 Density 6 Annex A (informative) Other microfiche of uniform and of variable division 11 Annex B (informative) Variation of the dimensional characteristics ofthemicrofiche 19 Annex C (informative) Notes on computer
15、 output microfiche 19 Figure 1 Presentation of the heading area 3 Figure 2 Standard sequences for sectionalising large documents 5 Figure 3 Image arrangement for 49 and 98 frame formats 7 Figure 4 Image arrangement for 270 frame format 8 Figure 5 Image arrangement for 420 frame format 9 Figure 6 Sin
16、gle image microfiche 10 Figure A.1 Image arrangement 63 images 12 Figure A.2 Image arrangement 84 images 13 Figure A.3 Image arrangement 210 images 14 Figure A.4 Image arrangement 30 and 60 frame format 15 Figure A.5 Image arrangement for 208 frame format 16 Figure A.6 Image arrangement for 325 fram
17、e format 17ISO9923:1994(E) BSI 08-1999 iii Page Figure A.7 Image arrangement for 2, 4, 8, 16, 32 and 64 variable divisionframe formats 18 Table 1 Microfiche layout 3 Table 2 Minimum legibility (resolution values) 6 Table A.1 Microfiche layout 11ISO9923:1994(E) iv BSI 08-1999 Foreword ISO (the Intern
18、ational Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has b
19、een established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical sta
20、ndardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 9923 was prepared by Technical C
21、ommittee ISO/TC 171, Micrographics and optical memories for document and image recording, storage and use. This first edition cancels and replaces ISO 2707:1980, ISO 2708:1980 and ISO5126:1980. The most significant technical changes from these standards are the following: source document microfiche,
22、 of uniform and of variable formats, and COM microfiche are now covered by a single standard; the image arrangements of 49, 98, 270 and 420 frames and the single microfiche are part of the standard; uniform formats with image arrangements of 30, 60, 63, 84, 208, 210 and325 frames and variable format
23、s with image arrangements of2,4,8,16,32 and 64 frames are dealt with in an annex; the image arrangements of 270 and 420 frames can be used for the microfilming of source documents (reduction ratio 1 : 48); the index pagination method has been changed. Annex A, Annex B and Annex C of this Internation
24、al Standard are for information only.ISO9923:1994(E) BSI 08-1999 1 1 Scope This International Standard specifies the characteristics of transparent A6 size microfiche, from both source documents and COM, intended for international interchange of information and for micropublishing. It is applicable
25、to microfiche of uniform format with image arrangements of 49, 98, 270 and 420 frames and a single frame microfiche. Depending on requirements, the microfiche may be negative-appearing or positive-appearing. An annex specifies the characteristics of microfiche of uniform format with image arrangemen
26、t of 30, 60, 63, 84, 208, 210 and 325 frames and microfiche of variable divisions of 2, 4, 8, 16, 32 and64 frames used for certain applications. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standa
27、rd. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC
28、 and ISO maintain registers of currently valid International Standards. ISO 446:1991, Micrographics ISO character and ISO test chart No. 1 Description and use. ISO 543:1990, Photography Photographic films Specifications for safety film. ISO 3334:1989, Micrographics ISO resolution test chart No. 2 De
29、scription and use. ISO 4330:1987, Photography Determination of the curl of photographic film. ISO 5123:1984, Documentation Headers for microfiche of monographs and serials. ISO 5466:1992, Photography Processed safety photographic films Storage practices. ISO 6148:1993, Photography Film dimensions Mi
30、crographics. ISO 6196-1:1993, Micrographics Vocabulary Part 01: General terms. ISO 6196-2:1993, Micrographics Vocabulary Part 02: Image positions and methods of recording. ISO 6196-3:1983, Micrographics Vocabulary Part 03: Film processing. ISO 6196-4:1987, Micrographics Vocabulary Part 04: Materials
31、 and packaging. ISO 6196-5:1987, Micrographics Vocabulary Part 05: Quality of images, legibility, inspection. ISO 6196-6:1992, Micrographics Vocabulary Part 06: Equipment. ISO 6196-7:1992, Micrographics Vocabulary Part 07: Computer micrographics. ISO 6199:1991, Micrographics Microfilming of document
32、s on 16 mm and 35 mm silver-gelatin type microfilm Operating procedures. ISO 6200:1990, Micrographics First generation silver-gelatin microforms of source documents Density specifications. ISO 8126:1986, Micrographics Diazo and vesicular films Visual density Specifications. ISO 8514-1:1992, Microgra
33、phics Alphanumeric computer output microforms Quality control Part 1: Characteristics of the test slide and test data. ISO 8514-2:1992, Micrographics Alphanumeric computer output microforms Quality control Part 2: Method. ISO 9878:1990, Micrographics Graphical symbols for use in microfilming. ISO 10
34、196:1990, Micrographics Recommendations for the creation of original documents. ISO 10602:1993, Photography Processed silver-gelatin type black-and-white film Specifications for stability. 3 Definitions For the purposes of this International Standard, the definitions given in ISO 6196 apply. 4 Basic
35、 characteristics of microfiche 4.1 Physical characteristics 4.1.1 Raw film The film used for exposure and duplication can be either roll film, which will then be cut to the dimensions for the microfiche, or sheet film. It shall conform to ISO 543, ISO 6148 and ISO 10602. 4.1.2 Dimensions of the micr
36、ofiche The external dimensions of the processed microfiche, when measured from the reference corner, shall be 105 mm 148 mm The dimensions shall be measured when the film has come to equilibrium, after processing, at a temperature of 23 C 2 C and a relative humidity within the range 45 % to 55 %. 0
37、0,75 0 1ISO9923:1994(E) 2 BSI 08-1999 Size variations due to raw stock finishing have been considered in determining the tolerances. Additional size changes can occur during ageing, especially for film coated on cellulose ester base. Temporary size changes due to temperature and humidity changes are
38、 also possible (see Annex B and ISO 6148). Microfiche cut to the A6 sheet size before processing can be out of the tolerances quoted after processing because the high temperature required for processing can cause stretching and shrinking. 4.1.3 Identification of the sensitised side of sheet film To
39、facilitate microfiche-to-microfiche copying, a notch or a corner cut may be used to identify the sensitised layer of the microfiche, as follows: When a sheet of raw film or microfiche is held with the long sides in a vertical position and the notch or corner cut in the upper right-hand corner, the s
40、ensitised side shall be towards the observer. When a notch is used, it shall be made in the shorter side of the sheet, near the appropriate corner. The notch may be of any shape, but it shall not penetrate more than 1,6 mm inward from the edge of the microfiche. When a corner cut is used, it shall b
41、e made only in the appropriate corner of the heading area. The nominal dimensions of the cut are 4 mm along the longer side of the microfiche and 4 mm along the shorter side. 4.1.4 Squareness The deviation from squareness and edge straightness of any microfiche cut to A6 size after processing shall
42、be limited by two separate perfect rectangles, one made to the minimum dimensional tolerance specified in this International Standard and the other to the maximum tolerance. No point on the perimeter of the sheet shall fall within the smaller rectangle, nor shall any point fall outside the large rec
43、tangle. (See 4.2.1 for dimensions.) NOTE1Certain duplicating processes, such as thermal, may be unable to meet these requirements, in which case the microfiche may be unsuitable for automated devices. 4.1.5 Thickness The thickness of the film used for the microfiche shall not be greater than 0,22 mm
44、 or less than0,10mm. 4.1.6 Corner rounding The corners of the microfiche may be rounded, the exception being that corner which has been subjected to a corner cut. When corners are rounded, the process shall not remove more than 3 mm of either of the two edges forming the corner. 4.1.7 Curl and bow P
45、lace a fully processed microfiche cut to distribution size convex side down on a flat surface for at least6h in an atmosphere in which the temperature is 23 C 2 C and the relative humidity (50 5) %. Thereafter, no part of the microfiche shall be more than 6,5 mm above the surface (see ISO 4330:1987,
46、 test method C). 4.2 Heading 4.2.1 Heading area The heading area of the microfiche, situated above the image area, shall be reserved for heading area coating, eye-legible identification and references. The dimensions of the heading area for various formats are indicated in Table 1 and Table A.1. If
47、extra space is needed, the space allocated to the whole of the following row(s) of images may be used. In this case, the identification of the remaining image frames as defined in 4.3 shall remain unchanged. 4.2.2 Arrangement of the heading The heading area may be divided into three distinct areas i
48、n the sequence shown inFigure 1. The length of each section is not fixed and is determined by the user (see ISO 5123). 4.2.2.1 Identification area This area shall be used for identification of the microfiche and any reference to the confidentiality of the microfiche. 4.2.2.2 Bibliographic area This
49、area is reserved for bibliographical references specifying the contents of the microfiche. When more complete information is necessary for other purposes, such as classification and cataloguing, use the first frames of the microfiche. Copyright details shall be included at the bottom of this area. 4.2.2.3 Sequential area Machine-readable characters and optical codes shall be placed in the upper right portion of this area, w
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