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BS ISO 18937:2020

BS ISO 18937:2020

$142.49

Imaging materials. Photographic reflection prints. Methods for measuring indoor light stability

Published By Publication Date Number of Pages
BSI 2020 30
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This document describes test equipment and procedures for measuring the light stability of colour photographic reflection prints designed for display, when subjected to a filtered xenon-arc light source simulating daylight through windows at specified temperatures and relative humidity.

This document is applicable to photographic reflection prints, made with analogue and digital print processes. The recommended test methods can be applied to both colour and black-and-white photographic prints.

This test method assesses colour and density change.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
4 Requirements and limitations
10 5 Test methods ā€” General
5.1 Safety cautions
5.2 Light source and filters
5.3 Humidity control
5.4 Temperature control
5.5 Air quality in the test environment
11 5.6 Duration of exposures
6 Light source conditions
6.1 Light source measurements
12 6.2 Light exposure equipment
6.3 Specifications for optical filters
6.3.1 General
6.3.2 Filter specifications for simulating general indoor display conditions
6.3.3 Filter specifications for simulating in-window display conditions
6.3.4 Use of an IR-reducing filter
6.3.5 Filter configuration
6.4 Verification of chamber fade uniformity
13 7 Light source specifications
7.1 Simulated general indoor display
7.1.1 Application
7.1.2 Filtered xenon-arc configuration to simulate general indoor display conditions
7.1.3 Spectral irradiance
14 7.1.4 Radiation intensity, temperature, and humidity
7.2 Simulated in-window display
7.2.1 Application
15 7.2.2 Filtered xenon-arc configuration to simulate in-window display conditions
7.2.3 Spectral irradiance
7.2.4 Radiation intensity, temperature and humidity
16 8 Specimen preparation
8.1 Specimens
8.1.1 Use of replicates and reference specimens
8.1.2 Setting of dummy specimens for the open space
17 8.1.3 Test target design and format
8.2 Conditioning the prints after printing
9 Test report
9.1 General reporting requirements
19 Annex A (informative) Evaluation of light stability reciprocity behaviour
21 Annex B (informative) Relative spectral transmittance of filters
23 Annex C (informative) Example of chamber uniformity verification method
25 Annex D (informative) Sample temperature measurements based on different parameters
28 Bibliography

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BS ISO 18937:2020
$142.49