CHEMICALLY TEMPERED GLASS PLATE AND IMPACT TESTING METHOD THEREFOR

摘要

The present invention relates to a chemically tempered glass plate which has a front face, a back face and an edge face and has a chamfer part on the edge face. This chemically tempered glass plate is characterized in that the average energy at the time of breakage is 0.1 J or more in an impact test in which the chemically tempered glass plate is disposed such that the front face and the back face form an angle of 20 degrees or less with respect to the vertical direction, the chemically tempered glass plate is fixed with the back face in contact with a flat plate, and an impactor with a diameter of 40 mm is impacted on the boundary between the front face and the chamfer part with the chemically tempered glass plate in a fixed state.