electronic caliper in this test the wire rope is shortened by at least the removal of the section under test when the single wire has a minimum diameter that is for example less than 60 of the minimum diameter of a single wire of a new wire rope of the same type in a seventh test of integrity a single wire of the wire rope is tested for resistance to flexing a 12 inch sample wire from the wire rope under test is clamped in a vise to a pre selected pressure a u00bd inch spacer having a groove along its length is then placed on top of the vise with the wire lying in the groove the wire is then gripped with pliers at the top of the spacer and worked by moving the pliers back and forth through a 180 u00b0 c arc with constant speed and force until the wire breaks the number of bends is counted and compared with the number of bends required to break a single new wire of the same type in this test the wire rope is shortened by at least the removal of the section under test when the wire survives fewer than for example 25 of the number of flexes required to break a new wire of the same type in an eighth test of integrity the twist strength of a wire from the wire rope is tested in this test.