The standard provides a test method for evaluating the light stability of ink jet printings under indoor fluorescent lighting conditions. The standard aims to accelerate the evaluation of the relative light Stability of inkjet printing media by simulating overhead fluorescent lighting in an office environment. Tests include the determination of Color change and light density change and are compared with known references under the same conditions. These results have important implications for acceptance of production specifications, quality control and product development. The standard describes two methods of fluorescent lamp exposure and notes that light Stability assessment may be affected by changes in operating conditions.