The strand filler compound compatibility test is designed to verify that the electrical properties of a conducting material used as a conductor stress control layer are not adversely affected when exposed to strand filler material. It describes a test method of demonstrating that the volume resistivity and volume resistivity stability remain within their specified limits when the conducting material is exposed to the strand filler material at the emergency operating temperature of the cable. PURPOSE This guide provides for testing of conductor filling compounds with overlaying extruded conducting material for sealed conductor designs.