ISO INTERNATIONAL STANDARD 5-4 Third edition 2009-12-01 Photography and graphic technology - Density measurements - Part 4: Geometric conditions for reflection density Photographie et technologie graphique Mesurages de la densite - Partie 4: Conditions géometriques pour la densite de réflexion Reference number ISO 5-4:2009(E) @ ISO 2009 ISO 5-4:2009(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 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 COPYRIGHTPROTECTEDDOCUMENT ISO2009 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 memberbody 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 copyright@iso.org Web www.iso.org Published in Switzerland ii @ Iso 2009 - All rights reserved ISO 5-4:2009(E) Contents Page Foreword Introductiol 1 Scope 2 Normative references. 3 Terms and definitions 4 Coordinate system, terminology and symbols .... 5 Distinction between ideal and realized parameters 6 Requirements.... 6.1 Influx and efflux geometry. 6.2 Samplingaperture, 6.3 Annulardistribution 6.4 Normal directional distribution. 6.5 Determination of illuminator radiance distribution... 6.6 Determination of receiver responsivity distribution.. 6.7 Polarizationefficiency 6.8 Scatteredflux 6.9 Backing material 6.10 Reference standard. 6.11 Designation. 6.12 Conformance testing. Annex A (normative) Determining conformance with tolerances.. Annex B (normative) Determination of accuracy and linearity of a densitometer.. .9 Annex C (normative) Certified reference materials for measuring instruments with polarizing means ..... 10 Annex D (normative) Polarization efficiency.. 11 Annex E (informative) Backing materials . 13 Annex F (informative) Reflectance density versus reflectance factor density... .14 Bibliography.. 15 @Iso2009-All rights reserved ii