ISO/IEC INTERNATIONAL STANDARD 19799 First edition 2007-03-15 Information technology Method of measuring gloss uniformity on printed pages Technologies de I'information Methode de mesure de I'uniformite de lustre des pages imprimees Reference number ISO/IEC 19799:2007(E) IEC ISO @ISO/IEC2007 No r y IHS under ted without license from IHS Not for Resale ISO/IEC 19799:2007(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. Details of the software products used to create this PDF fle 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. ?ISO/IEC2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, 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/IEC 2007 - All rights reserved ted without license from IHS Not for Resale ISO/IEC 19799:2007(E) Contents Page Foreword. Introduction 1 Scope 2 Normative references 3 Terms and definitions 4 Test Parameters and Conditions 4.1 Set-up.. 4.2 SampleSize 4.3 Print Mode. 4.4 4.5 Maintenance 4.6 Original test charts for copiers 4.7 Print Files. 5 Test Methodology .. 5.1 Testing Procedure for copiers. 5.2 Testing Procedure for printers 6 Determination of the gloss uniformity for printed pages, 6.1 Determination of differential gloss 6.2 Determination of gloss uniformity within-page.. 6.3 Determination of gloss consistency within a run.. 7 Test report. Annex A (informative) Differential gloss test charts and color values .. .8 Annex B (informative) Examples of differential gloss measurement results using different paper substrates on copiersand printers. 13 Annex C (informative) Differential gloss perceptual scale... .15 AnnexD(informative)Differentialthresholdforvisualglosscurve(JNDestimates) .18 Annex E (informative) Gloss uniformity test charts, color values and result examples ... ...19 Annex F (informative) G60 and G75 differential gloss round-robin experiment data ... .26 Bibliography 28 ii by IHS unde nse from IHS Not for Resale ISO/IEC 19799:2007(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 beer non-governmental, in liaison with isO, also take part in the work. iso collaborates closely with the International Standards are drafted in accordance with the rules given in the ISO/lEC 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 % 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. Sc 28, Office equipment. @ ISO/IEC 2007 - All rights reserved ional Organization for Standardizatior ISO/IEC 19799:2007(E) Introduction attributes for gloss non-uniformity on printed pages in reflection mode. This International Standard prescribes the following: a definition of gloss