Vertical Rebound Resilience Tester ASTM D263
\This tester uses the vertical free falling of hammer to test the features of vertical rebound resilience for rubber specimen. Hammer falls freely from a certain height. The first three tests are ignored, and the test results from the forth to sixth tests should be recorded down and so to get the average.
|Weight of hammer||28 g|
|Falling height||400 mm|
|Thickness of specimen||12.5 mm|