ISO 18946:2011

Imaging materials — Reflection colour photographic prints — Method for testing humidity fastness

ISO 18946:2012 describes test methods for evaluating reflection colour photographic prints with regard to changes in image appearance resulting from exposure to both low and high relative humidity. The observed changes relate to colour, tone and loss of sharpness caused by horizontal and vertical diffusion of colorants from exposure to elevated humidity levels. Other humidity-related factors are outside the scope of this test method. The method and procedures described in ISO 18946:2012 are particularly appropriate to systems where the colorants are applied by a mechanism involving the diffusion of colorant into image-receiving layers and to certain types of inkjet media that are susceptible to Dmin yellowing.

Matériaux pour l'image — Tirages photographiques en couleurs par réflexion — Méthode d'essai de la solidité à l'humidité

General Information

• Status: Withdrawn
• Publication Date: 05-Dec-2011
• 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: 9599 - Withdrawal of International Standard
• Completion Date: 19-Dec-2023

Relations

• Revised: ISO 18946:2023 - Imaging materials — Reflection colour photographic prints — Method for testing humidity fastness
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 18946
First edition
2011-12-15
Imaging materials — Reflection colour
photographic prints — Method for testing
humidity fastness
Matériaux pour l’image — Tirages photographiques en couleurs par
réflexion — Méthode d’essai de la solidité à l’humidité
Reference number
ISO 18946:2011(E)
©
ISO 2011

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ISO 18946:2011(E)
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ii © ISO 2011 – All rights reserved

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ISO 18946:2011(E)
Contents Page
Foreword . v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
5 Outline of test procedure . 2
6 Sample preparation . 3
6.1 General . 3
6.2 Test target . 4
6.3 Printer driver setting . 5
6.4 Printing conditions. 5
6.5 Sample conditioning . 5
7 Humidity exposure . 6
7.1 Equipment and calibration . 6
7.2 Test environment control . 6
7.3 Method A — Fixed humidity condition . 7
7.4 Method B — Multiple humidity conditions . 7
7.5 Method C — Fixed low-humidity condition . 7
8 Colorimetric measurement . 7
9 Data analysis . 8
10 Test report . 9
10.1 General . 9
10.2 Samples information .
...