1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g5835 mm microfilm ICS 37.080Micrographics Dimensions for reels used for 16 mm and BRITISH STANDARDBS
2、ISO 24537:2007BS ISO 24537:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2007 BSI 2007ISBN 978 0 580 50780 9Amendments issued since publicationAmd. No. Date CommentsThis publication does not purport to include all the necessary p
3、rovisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of ISO 24537:2007.The UK participation in its preparati
4、on was entrusted by Technical Committee IDT/1, Document management applications, to Subcommittee IDT/1/2, Applications issues.A list of organizations represented on this committee can be obtained on request to its secretary.Reference numberISO 24537:2007(E)INTERNATIONAL STANDARD ISO24537First editio
5、n2007-04-01Micrographics Dimensions for reels used for 16 mm and 35 mm microfilm Micrographies Dimensions des bobines utilises pour les microfilms de 16 mm et de 35 mm BS ISO 24537:2007ii iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national stand
6、ards 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 been established has the right to be represented on that committee. International orga
7、nizations, 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 standardization. International Standards are drafted in accordance with the rules given
8、in the ISO/IEC Directives, 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
9、% of the member bodies casting 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 24537 was prepared by Technical Committee ISO/TC 171, Docu
10、ment management applications, Subcommittee SC 2, Application issues. BS ISO 24537:2007iv Introduction There is an increasing variety of equipment available to retrieve 16 mm and 35 mm roll microfilm. Some equipment uses conventional threading from the supply reel to the take-up reel in order to driv
11、e the microfilm. Other equipment uses automatic threading techniques with reels and an ISO approved cartridge. This International Standard is intended to provide 16 mm and 35 mm reel dimensions which will allow compatibility with readers using conventional threading, and which can also be used for m
12、icrofilm storage. If a 16 mm reel is to be used in a cartridge for use in automatic threading equipment, the requirements of ISO 7761 will apply. The requirements for camera spools are specified in ISO 6148. BS ISO 24537:20071Micrographics Dimensions for reels used for 16 mm and 35 mm microfilm 1 Sc
13、ope This International Standard covers the essential dimensions of lightweight reels, made of plastic or metal, used for the storage and retrieval of processed 16 mm and 35 mm microfilm that is used in manually threaded equipment. Reels intended for use in 16 mm automated retrieval systems are outsi
14、de the scope of this International Standard. The dimensions of these reels are specified in ISO 7761. Camera spools are also frequently used for storing processed microfilm. The dimensions of these spools are outside the scope of this International Standard, but they are specified in ISO 6148. 2 Nor
15、mative references The following referenced documents 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 6196 (all parts), Micrograp
16、hics Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 6196 (all parts) and the following apply. 3.1 front flange flange that first engages the equipment spindle 3.2 location surface portion of the reel which meets the back location stop on
17、the equipment spindle 4 Requirements 4.1 16 mm reels The inside surface of the front flange, measured within 3,2 mm of the core, shall be in the same plane as the location surface around the square spindle hole. The allowable deviation from this alignment shall be 0,25 mm. The minimum diameter of th
18、e location surface around the square spindle hole shall be 15,9 mm, and the maximum diameter shall be 17,0 mm. These specifications apply to front and rear flanges if both have square spindle holes (see Figures 1 and 2). BS ISO 24537:20072 4.2 35 mm reels The position of the inside surface of the fr
19、ont flange, measured within 3,2 mm of the core, shall be a further 1,0 0,5 mm into the reel with respect to the location surface around the square spindle hole. The minimum diameter of the location surface around the square spindle hole shall be 15,9 mm, and the maximum diameter shall be 17,0 mm. Th
20、ese specifications apply to front and rear flanges if both have square spindle holes (see Figures 1 and 2). Dimensions in millimetres Dimension 16 mm reels 35 mm reels A 1,50,917+1,50,936+Bau 21,4 u 40,2 C 0 + 0,25 1 0,5 D 32 1,0 1,0032+E 2,01,092+2,01,092+Kb1,00,51,3+1,00,51,3+aDimension B is the w
21、idth outside the flanges including any embossed area. bOptional. Key 1 location surface Figure 1 Dimensions of 16 mm and 35 mm reels 4.3 Spindle holes The permissible designs of spindle holes are shown in Figure 2. For both 16 mm and 35 mm reels, spindle holes are oriented as seen by looking at the
22、outer surface of each flange separately. The front flange engages the equipment spindle first. Holes are oriented as seen by looking at the outer surface of each flange separately. BS ISO 24537:20073Dimensions in millimetres a) Style 1 a, rear flange b) Style 1 a, front flange c) Style 2 b, rear fla
23、nge d) Style 2 b, front flange e) Style 3 c, rear flange f) Style 3 c, front flange Dimension 16 mm reels 35 mm reels G 3,3 0,2 3,3 0,2 H 8,1 0,5 8,1 0,5 J 0,20,58,1+0,20,58,1+S 0,20,58,1+0,20,58,1+Key aFor 16 mm and 35 mm reels. bFor 35 mm reels.cFor 16 mm reels.Figure 2 Dimensions of spindle holes
24、 for 16 mm and 35 mm reels BS ISO 24537:20074 4.4 Lateral runout The lateral runout (wobble) of the reel from the intended plane of rotation shall not exceed 1,3 mm. The “intended plane” is a plane perpendicular to the axis of the spindle and coincident with the outer surface of the flange at points
25、 adjacent to the spindle. When the reel is rotated on an accurate tight-fitting spindle, the total outward and inward deviation of the flange from this intended plane shall not exceed 1,3 mm. 4.5 Flanges The flanges may be either solid or spoked (with open areas). 4.6 Finish The reel shall be free f
26、rom any flashing or moulding lines on its inner surfaces that would interfere with the film transport or cause damage to the film. 4.7 Optional features An optional film loading slot is allowed in the reel core. If used, the width of this slot shall conform to dimension K (see Figure 1). An optional
27、 film loading slot is also permitted in either one or both flanges. If used, the width of this slot shall also conform to dimension K. 4.8 Colour Spools may be any colour, or translucent, but shall not be black, in order to avoid confusion with camera reels. BS ISO 24537:20075Bibliography 1 ISO 6148
28、, Photography Micrographic films, spools and cores Dimensions 2 ISO 7761, Micrographics Single-core cartridge for 16 mm processed microfilm Dimensions and operational constraints BS ISO 24537:2007BS ISO BSI389 Chiswick High RoadLondonW4 4AL24537:2007BSI British Standards InstitutionBSI is the indepe
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