1、BRITISH STANDARD BS ISO 3272-1:2003 Microfilming of technical drawings and other drawing office documents Part 1: Operating procedures ICS 01.100.01; 37.080 Incorporating corrigendum June2009 National foreword This British Standard is the UK implementation of ISO 3272-1:2003, incorporating corrigend
2、um June 2009. It supersedes BS 4210-1:1977 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee IDT/1, Document imaging applications, to Subcommittee IDT/1/2, Applications. A list of organizations represented on this subcommittee can be obtained on request
3、 to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. BS ISO 3272-1:2003 This British Standard was published unde
4、r the authority of the Standards Policy and Strategy Committee on 4 April 2003 BSI 2009 Amendments/corrigenda issued since publication Date Comments 31 August 2009 Implementation of ISO corrigendum June 2009, figure 1 replaced ISBN 978 0 580 68117 2 Reference number ISO 3272-1:2003(E)INTERNATIONAL S
5、TANDARD ISO 3272-1 Second edition 2003-03-15 Microfilming of technical drawings and other drawing office documents Part 1: Operating procedures Micrographie des dessins techniques et autres documents de bureau dtudes Partie 1: Techniques opratoires IS-2723 O1:(3002E) DPlcsid Fremia ihTs PDF file mya
6、 ctnoian emdebt dedyfepcaes. In ccacnadrow eitA hebods licnesilop gnic,y tihs file mirp eb yatnde iv roweb detu slahl ton ide ebtlnu deess teh typfecaes wihce era hml era deddebicsnede ti dna onstlalde t noeh comuptfrep reromign tide ehtin.g In wodlnidaot gnihs fil,e trapise atpecc tiereht nser ehno
7、psiiblity fo nto ifnriigngn Aebods licnesilop gnic.y ehT ISO tneClar Secrteirata caceptl on siibality in this .aera Ai ebods a tedarmfo kra Aebod SystemI snctaropro.de teDials fo teh sfotwcudorp erats sut deo crtaee tihs PDF file cna f ebi dnuon tlareneG eh Ifnler oatit evt oeh file; tP ehDc-Frtaein
8、o marapterew stpo ereimizde fro irptni.gn Evyre cera neeb sah takne tsne oeru taht teh file is siutlbae fosu re yb ISO memdob rebeis. In tlnu ehikletneve y ttah lborp aem lertait gno it is f,dnuo plsaee ifnrom ttneC ehlar Secterirata ta teh serddaig sleb nevwo. ISO 3002 All irthgs erse.devr lnUeto s
9、swrehise specified, on trap fo this lbupictaion maeb y cudorperro de tuilizi den yna form ro na ybm ynae,s lecetrinoc ro mceinahcla, incliduntohp gcoiypodna gn micrfoilm, wittuoh repmissii now nritign from ietI rehSa Ot tsserdda eh ebolw or ISOs memreb i ydobn the cnuotfo yr ttseuqer ehe.r ISO ciryp
10、othg fofice saCe tsopale 65 eneG 1121-HC 02 av leT. 4 + 10 947 22 1 11 xaF0 947 22 14 + 9 74 E-mial coirypthgis.o gro We bwww.is.o groii BSISO32721:2003 iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 1 4 Unexposed film stock . 1 5 Originals.
11、 2 6 Filming procedures. 3 7 Enlargement 5 Annex A (normative) Enlargement ratios and sizes of reproduction for A-size documents 6 Bibliography . 7 BSISO32721:2003iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member b
12、odies). 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 been established has the right to be represented on that committee. International organizations, governmental a
13、nd 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 standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives
14、, Part 2. The main task of technical committees is to prepare International Standards. 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 ca
15、sting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3272-1 was prepared by Technical Committee ISO/TC 171, Document imaging application
16、s, Subcommittee SC 2, Application issues. This second edition cancels and replaces the first edition (ISO 3272-1:1983), which has been technically revised. ISO 3272 consists of the following parts, under the general title Microfilming of technical drawings and other drawing office documents: Part 1:
17、 Operating procedures Part 2: Quality criteria and control of 35 mm silver gelatin microfilms Part 3: Aperture card for 35 mm microfilm Part 4: Microfilming of drawings of special and exceptional elongated sizes Part 5: Test procedures for diazo duplicating of microfilm images in aperture cards Part
18、 6: Quality criteria and control of systems for enlargements from 35 mm microfilm BSISO32721:2003 vIntroduction Drawing offices produce, in addition to drawings, documents that differ in purpose, form and intention. Microfilming enables the information contained in these documents to be reduced, thu
19、s facilitating transport, handling and storage. Faithful reconstitution of a microform can only be accomplished readily if the microform satisfies precise requirements with respect to dimensions and quality. The quality requirements themselves can be fulfilled readily only if the original document i
20、s prepared in accordance with ISO 6428. Progress towards the adoption of ISO 5457 varies in different countries and many organizations have large holdings of documents, which are not of the standardized sizes because they were produced before the publication of ISO 5457. These documents are still us
21、ed and microfilming can provide a common carrier that will facilitate international exchange of the information contained in these documents and those of ISO 5457 sizes. Microfilming procedures, systems and methods differ from country to country. These differences will not adversely affect the excha
22、nges of technical drawings and other drawing office documents if the specifications in this International Standard are followed. Microforms of technical drawings are generally produced on 35 mm unperforated film. The use of aperture cards for international exchange can circumvent the problems associ
23、ated with the procedural differences in producing microforms. ISO 3272-1 is concerned with operating procedures for microfilming technical drawings not larger than A0 (or of maximum size 912 mm 1 230 mm). ISO 3272-2 deals with quality requirements, ISO 3272-3 deals with aperture cards, ISO 3272-4 de
24、als with drawings larger than A0, ISO 3272-5 deals with diazo aperture card duplicators and ISO 3272-6 deals with systems for producing enlargements from 35 mm microfilm. BSISO32721:2003 blankINTENRATIONAL TSANDADR IS-2723 O1:(3002E)1Microfilming of technical drawings and other drawing office docume
25、nts Part 1: Operating procedures 1 Scope This part of ISO 3272 specifies reduction ratios, enlargement ratios, sizes of enlargement and the resulting image sizes for recording on 35 mm unperforated microfilm technical drawings and other drawing office documents, such as architects plans, calculation
26、 notes, specifications, vocabularies and parts lists. This part of ISO 3272 applies to the microfilming of documents no larger than A0 with dark lines and characters on a light background, preferably prepared in accordance with ISO 5457 and ISO 6428. It may also apply to sizes other than those speci
27、fied in ISO 5457, provided they are no larger than 912 mm 1 230 mm and can be accommodated within a single frame of 35 mm microfilm, as specified in this part of ISO 3272. This part of ISO 3272 does not apply to images created by a COM device. 2 Normative references The following referenced document
28、s are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5457:1999, Technical product documentation Sizes and layout of drawing sheets
29、ISO 6148:2001, Photography Micrographic films, spools and cores Dimensions ISO 6196-1:1993, Micrographics Vocabulary Part 1: General terms ISO 6196-2:1993, Micrographics Vocabulary Part 2: Image positions and methods of recording ISO 6196-3: 1997, Micrographics Vocabulary Part 3: Film processing ISO
30、 6428:1982, Technical drawings Requirements for microcopying 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 6196-1, ISO 6196-2 and ISO 6196-3 apply. 4 Unexposed film stock The unexposed film shall be unperforated film in accordance with ISO 6148. BS
31、3002:12723OSIBSISO32721:20032 5 Originals 5.1 Size It is recommended that originals of A-series, as specified in ISO 5457, be used. NOTE All documents larger than 912 mm 1 230 mm are excluded from this part of ISO 3272; they are dealt with in ISO 3272-4. 5.2 Preparation The original is usually a doc
32、ument that has been drawn, typed or prepared by automatic means or by a combination of these methods. The original should be in accordance with ISO 6428. 5.3 Centre markings Centre markings shall appear on all four sides of the original, projecting at right angles from the border lines toward the ed
33、ge of the sheet. They shall be located with an accuracy of 0,5 mm as specified in ISO 5457. 5.4 Orientation marks Two orientation marks shall be provided on each drawing, one on a short side and one on a long side, as specified in ISO 5457. 5.5 Borders The borders of the original shall be wide enoug
34、h to accommodate all the tolerances required for microform reproduction. Borders of the following minimum widths shall be provided on all four sides of A-size originals, as specified in Table 1 and ISO 5457. Table 1 Border widths Designation Millimetres A0 A1 A2 A3 A4 20 20 10 10 10 5.6 Metric gradu
35、ation For reduction and enlargement purposes, a metric graduation, 100 mm long, shall be provided on the border of each drawing. 5.7 Position of documents on table of planetary-type cameras The centre markings of the original and the centre markings on the document base of the camera shall coincide
36、within a tolerance of 3 mm. BSISO32721:2003 36 Filming procedures 6.1 Frame area, image area, frame pitch Frame area, image area and frame pitch are given in Figure 1 and Table 2. Table 2 Dimensions of frame area, image area and frame pitch 35 mm microfilm Dimensions mm Frame area (a 2 b 2 ) 00 0,5
37、0,5 32 45 Image area (a 1 b 1 ) 30,4 41,0 (max.) Frame pitch 0 1, 2 52 6.2 Reduction ratios Nominal reduction ratios of 1/30, 1/21, 2 and 1/15 are recommended for filming A-size documents specified in ISO 5457 and Table 3. Nominal reduction ratios of 1/30, 1/24 and 1/16 are acceptable for all docume
38、nt sizes as given in Table 4. The tolerance on the nominal ratios shall be 4 0 % + . (These tolerances apply to the denominator, see Table 3.) BSISO32721:2003Figure 1 Frame area (a 2 b 2 ), image area, (a 1 b 1 ) and frame pitch (t) 4 Table 3 Recommended reduction ratios for A-sizes Document size mm
39、 Reduction ratio Image size mm A0: 841 1 189 ( ) 1, 2 0 13 0 + 28,0 39,6 A1: 594 841 ( ) 1, 2 0 13 0 + ( ) 0,85 0 12 1 , 2 + 19,8 28,0 28,0 39,6 A2: 420 594 ( ) 0,85 0 12 1 , 2 + ( ) 0,6 0 11 5 + 19,8 28,0 28,0 39,6 A3: 297 420 ( ) 0,85 0 12 1 , 2 + ( ) 0,6 0 11 5 + 14,0 19,8 19,8 28,0 A4: 210 297 (
40、 ) 0,6 0 11 5 + 14,0 19,8 Table 4 Acceptable reduction ratios for all sizes Document sizes a mm Nominal reduction ratios Image size mm Width: not more than 457 Length: not more than 609 1/16 Not more than 28,6 38,1 Width: from 457 to 609 Length: from 609 to 912 1/24 Not more than 25,4 38,0 Width: fr
41、om 609 to 912 Length: from 912 to 1 230 1/30 Not more than 30,4 41,0 aIf the document is not within both limits, the next applicable reduction ratio shall be used. 6.3 Drawings to be reproduced to scale If drawings are to be reproduced to scale, a graduated scale shall be filmed with each document,
42、as specified in Annex A. 6.4 Leader and trailer Each reel or complete length of exposed 35 mm microfilm shall have at the beginning and the end 200 0 500 mm + of unexposed film. BSISO32721:2003 56.5 Arrangement of multiple sheets If more than one sheet or page is to be microfilmed on a single frame,
43、 the arrangement (text in the right-reading position) and order of reading of the originals should be as shown in Figure 2. This method is not recommended if the information on a single sheet is subject to revision. Figure 2 Examples of multiple sheets on single frames 7 Enlargement The nominal enla
44、rgement ratios for A-size documents shall be 0 0,6 14,9 0 0,8 21 ,0 0 1, 2 29,9 Recommended enlargement ratios and sizes of reproductions are given in Table A.1 of Annex A. BSISO32721:20036 Annex A (normative) Enlargement ratios and sizes of reproduction for A-size documents Table A.1 Example of enl
45、argement ratios and sizes of reproduction for A-size documents Original document size Nominal reduction ratios Nominal enlargement ratios Sizes of reproduction A0 1/30 14,9 21,0 29,9 A2 A1 A0 A1 1/30 1/21,2 14,9 14,9 21,0 A3 A2 A1 A2 1/21,2 1/15 14,9 14,9 A3 A2 A3 1/21,2 1/15 14,9 14,9 A4 A3 A4 1/15
46、 14,9 A4 BSISO32721:2003 7Bibliography 1 ISO 3272-2:1994, Microfilming of technical drawings and other drawing office documents Part 2: Quality criteria and control of 35 mm silver gelatin microfilms 2 ISO 3272-3:2001, Microfilming of technical drawings and other drawing office documents Part 3: Ape
47、rture card for 35 mm microfilm 3 ISO 3272-4:1994, Microfilming of technical drawings and other drawing office documents Part 4: Microfilming of drawings of special and exceptional elongated sizes 4 ISO 18906:2000, Imaging materials Photographic films Specifications for safety film BSISO32721:2003BSI
48、 Group Headquarters 389 Chiswick High Road, London, W4 4AL, UK Tel +44 (0)20 8996 9001 Fax +44 (0)20 8996 7001 standards BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards 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 quality of our products and serv
