This guide provides information on the equipment, cable samples, test conditions, and measurements to perform accelerated aging tests on medium-voltage cables using water-filled tanks. The guide identifies the critical test parameters and describes techniques for their measurement and control. The implementation of the techniques will facilitate a comparison of data obtained by different laboratories. New IEEE Standard - Superseded. Superseded by IEEE Std 1407-2007. Accelerated aging tests on extruded medium-voltage cables using water-filled tanks are addressed. Information on the equipment, cable samples, test conditions, and measurements to perform the aging tests is provided. Techniques on how to analyze the test data are also inlcuded.The implementation of this guide will allow a better description of the test data obtained by different laboratories.