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ISO

ISO 18924:2013

(Main)

Imaging materials — Test method for Arrhenius-type predictions

Imaging materials — Test method for Arrhenius-type predictions

ISO 18924:2013 specifies a test method for the prediction of certain physical or chemical property changes of imaging materials. ISO 18924:2013 is applicable to the Arrhenius test portion of ISO 18901, ISO 18905, ISO 18909, ISO 18912 and ISO 18919. ISO 18924:2013 is applicable to the prediction of the optical-density (D) loss or gain of imaging materials. Photographic dye images may be produced by chromogenic processing, by formation of diazo dyes, or by non-chromogenic methods such as dye diffusion and silver dye-bleaching processing. ISO 18924:2013 also covers density changes caused by residual coupler changes in dye images, excess residual processing chemicals in silver black-and-white materials, temperature effects on thermally processed silver images. This International Standard is applicable to the prediction of support degradation.

Matériaux d'image — Méthode d'essai pour les prédictions de type Arrhenius

General Information

Status
Published
Publication Date
04-Feb-2013
ICS
37.040.20 - Photographic paper, films and plates. Cartridges
Technical Committee
ISO/TC 42 - Photography
Drafting Committee
ISO/TC 42/WG 5 - Physical properties and image permanence of photographic materials
Current Stage
9093 - International Standard confirmed
Completion Date
20-Dec-2023
Ref Project

Relations

Revises
ISO 18924:2000 - Imaging materials — Test method for Arrhenius-type predictions
Effective Date
18-Aug-2012

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ISO 18924:2013 - Imaging materials -- Test method for Arrhenius-type predictionsISO 18924:2013 - Imaging materials -- Test method for Arrhenius-type predictions
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ISO 18924:2013 - Imaging materials -- Test method for Arrhenius-type predictions
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INTERNATIONAL ISO
STANDARD 18924
Second edition
2013-02-01
Imaging materials — Test method for
Arrhenius-type predictions
Matériaux d’image — Méthode d’essai pour les prédictions de type
Arrhenius
Reference number
ISO 18924:2013(E)
©
ISO 2013

---------------------- Page: 1 ----------------------
ISO 18924:2013(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested 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 copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 18924:2013(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Terms and definitions . 1
3 Background and theory . 2
3.1 Background . 2
3.2 Theory . 3
3.3 Effects of relative humidity . 3
4 Experimental procedures . 4
4.1 Outline of Arrhenius test . 4
4.2 Requirements for a meaningful Arrhenius test . 4
4.3 Sealed-bag versus free-hanging testing . 4
4.4 Effect of heating on sealed bags containing photographic film or paper . 5
4.5 Determination of test increments . 5
5 Calculations. 5
6 Test report . 5
Annex A (informative) Advantages and disadvantages of sealed-bag and free-
hanging incubations . 8
Annex B (informative) Limitations of the Arrhenius method . 9
Annex C (informative) Examples of Arrhenius relationships .11
Bibliography .13
© ISO 2013 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 18924:2013(E)

...

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