ISO INTERNATIONAL STANDARD 6342 Secondedition 2003-07-01 Micrographics Aperture cards Method of measuring thickness of buildup area Micrographie Cartes a fenétre - Méthode de mesurage de la zone de surépaisseur Reference number ISO 6342:2003(E) @ ISO 2003 No reproduction or networking permitted without license from IHS Not for Resale ISO 6342:2003(E) 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 accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. 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 @ISO2003 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 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2003 - All rights reserved No reproduction or networking permited without license from IHS Not for Resale ISO 6342:2003(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International 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 document may be the subject of patent rights. isO shall not be held responsible for identifying any or all such patent rights. ISO 6342 was prepared by Technical Committee ISO/TC 171, Document imaging applications, Subcommittee SC 2, Application issues. This second edition cancels and replaces the first edition (iSO 6342:1993), which has been technically revised. ii Not for Resale ISO 6342:2003(E) Introduction Aperture cards are widely used in many microfilm systems. As the various kinds differ in the thickness of the buildup area, a method of measuring the buildup thickness is necessary. @ ISO 2003 -All rights reserved No reproduction or networking permitted without license from IHS Not for Resale ISO 6342:2003(E) INTERNATIONAL STANDARD Micrographics Aperture cards Method of measuring thickness of buildup area 1 Scope This International Standard specifies a method of measuring the thickness of the buildup area on aperture cards (camera and copy cards) for manufacturing and inspection purposes. 2 Normative 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. density IsO 6196-1:1993, Micrographics — Vocabulary—Part 1: General terms 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 6196-1 and ISO 6196-4 apply. 4 Apparatus 4.1 Dial micrometers, of the dead-weight type, either motor- or manually operated. The motor-operated micrometer is preferred. The lowering speed shall be approximately 0,8 mm/s. The movable face or pressure foot shall be circular with a diameter of 16 mm ± 0,5 mm. The fixed face or anvil shall be of a size that allows the whole area of the pressure foot to be in contact with the anvil in the zero positi