Image Permanence Test Targets

This page provides test targets files for standards developed by ISO/TC 42, applicable to measuring the permanence of photographic prints. These images may have been generated with dyes or pigments by several processes, including chromogenic (silver-halide), dye transfer, thermal dye-diffusion transfer (“dye-sub”), dry and liquid toner electrophotography, thermal dye transfer, ink jet, and pigment gelatin systems.

The test targets of ISO 18944 are examples to measure the retention of colour (gamut) of prints tested under conditions specified in ISO 18936 (thermal), ISO 18937 (light) and ISO 18941 (ozone).

ISO 18944:2014 Imaging materials -- Reflection colour photographic prints -- Test print construction and measurement (click to go to the US ANSI website to purchase the standard).

The test target ISO 18946 is designed to measure lateral bleeding of images, specifically under conditions specified in ISO 18946 (humidity).

ISO 18946:2011 Imaging materials -- Reflection colour photographic prints -- Method for testing humidity fastness (click to go to the US ANSI website to purchase the standard).


ISO 18944 test target for colour fading "CIELAB 1" (Click to download the target file.)

ISO 18944 test target for colour fading "CIELAB 2" (Click to download the target file.)

ISO 18946 test target for humidity fastness