ISO INTERNATIONAL STANDARD 9923 First edition 1994-05-01 Arisr Intermat Doc Sec Micrographics Transparent A6 microfiche - Image arrangements Micrographie - Microfiche transparente de format A6 - Dispositions d'images ISO Reference number ISO 9923·1994(E) aiganzatSandadizai No reproduction or networking permitted without license from IHS Not for Resale ISO 9923:1994(E) Contents Page Scope 2 Normativereferences 3 Definitions 2 4 Basic characteristics of microfiche 2 4.1 Physical characteristics 2 4.2 Heading 3 4.3 Identification of the image frames 4 4.4 Cut mark 5 Frame formats of 49 and 98 (most commonly used for source documents) 5.1 Dimensions and image arrangements 4 5.2 Lower and side margins 5 5.3 Microimage placement and orientation 5 5.4 Reduction ratio 5 5.5 Technical target 5 5.6 Index 5 5.7 Microfilming large documents 5 5.8 Symbols 5 6 Frame formats of 270 and 420 (most commonly used for COM) 6 6.1 Dimensions and image arrangements 6 6.2 Lower and side margins 6 6.3 Microimage placement and orientation 6 6.4 Reduction ratio 6 6.5 Index 6 Single-frame format (most commonly used with cartography and large drawings) 1SO1994 All rights reserved Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. nternationalOrganizationforStandardization Case Postale 56 . CH-1211 Geneve 20 · Switzerland Printed in Switzerland Copyright No reproduction or networking permitted without license from IHS Not for Resale CISO ISO9923:1994(E) 7.1 Dimensions 7.2 Lower and side margins 8 Processing and storage 9 Control of microimage quality 9.1 Microfiche of source documents 9.2 COM microfiche 10 Density Annexes A Other microfiche of uniform and of variable division 12 B Variation of the dimensional characteristics of the microfiche 20 C Notes on computer output microfiche 21 No reproduction or networking permitted without license from IHS Not for Resale