ISO 3272-6:2000

INTERNATIONAL ISO
STANDARD 3272-6
First edition
2000-03-15
Microfilming of technical drawings and
other drawing office documents —
Part 6:
Quality criteria and control of systems for
enlargements from 35 mm microfilm
Micrographie des dessins techniques et autres documents de bureau
d'études —
Partie 6: Critères et contrôle de qualité des systèmes pour
l'agrandissement de microfilm de 35 mm
Reference number
©
ISO 2000
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not
be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this
file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this
area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters
were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event
that a problem relating to it is found, please inform the Central Secretariat at the address given below.
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 either ISO at the address below or ISO's member body
in the country of the requester.
ISO copyright office
Case postale 56 � CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 734 10 79
E-mail copyright@iso.ch
Web www.iso.ch
Printed in Switzerland
ii © ISO 2000 – All rights reserved

Contents Page
Foreword.iv
Introduction.v
1 Scope .1
2 Normative references .1
3 Terms and definitions .2
4 Enlargement ratios .2
5 Legibility .2
Annex A (informative) Readability of a print from a microfilmed engineering document.3
Bibliography.4
Foreword
ISO (the International 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 been 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 standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
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.
Attention is drawn to the possibility that some of the elements of this part of ISO 3272 may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 3272-6 was prepared by Technical Committee ISO/TC 171, Document imaging
applications, Subcommittee SC 2, Application issues.
ISO 3272 consists of the following parts, under the general title Microfilming of technical drawings and other
drawing office documents:
— Part 1: Operating procedures
— Part 2: Quality criteria and control of 35 mm silver gelatin microfilms
— Part 3: Unitized 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 6: Quality criteria and control of systems for enlargements from 35 mm microfilm
Annex A of this part of ISO 3272 is for information only.
iv © ISO 2000 – All rights reserved

Introduction
This part of ISO 3272 gives guidance on methods of producing enlargements from microfilm in accordance with
ISO 3272-1.
...