The standard provides a method for testing the relative light stability of inkjet printing products using xenon arc equipment equipped with window glass filters. The standard is designed to accelerate the assessment of the light Stability of inkjet printing media by simulating daylight conditions that filter through the window glass. The testing process involves determining the Color change and light density change of the printed product over a specific time period, assisting producers and users with specification acceptance, quality control and product development. The standard does not provide a specific light fastness rating, but provides information on relative light resistance when compared to known controls.