This document describes the equipment, methods and procedures for generating a known ozone exposure and the subsequent measurement and quantification of the amount of change produced within both digitally printed hardcopy images and traditional analogue photographic colour print images due to that exposure.
The test method described in this document uses increased levels of ozone to achieve an accelerated test. If the principal “gas fading” mechanism for a system is not ozone, this method might not be suitable and might give misleading results as to resistance of the test image to polluted air.rd edition 2020-07 Imaging materials — Colour reflection prints — Test method for ozone gas fading stability Matériaux pour l'image — Tirages par réflexion en couleurs — Méthode d'essai de la stabilité de la décoloration à l'ozone Reference number ISO 18941:2020(E) ？ ISO 2020 ISO 18941:2020(E) COPYRIGHT PROTECTED DOCUMENT ？ ISO 2020 All rights reserv