The purpose ASTM D4508 is to provide a test method for determining the impact strength of plastic materials with small samples of different thicknesses. This test method is meant to fill the gap left by Izod, Charpy, and drop-weight impact tests that limit the shape and thickness of the plastic specimen.

The impact test uses a small un-notched specimen that is impacted with a pendulum impact device. The pendulum impact device that is used to test with ASTM D4508 is the same as the Izod impact test machine. ASTM D256 defines the requirements of the Izod pendulum impact machine.

ASTM D4508 Pendulum Impact MachineTestResources builds testing machines that for a wide range of applications. We also have a pendulum impact test machine that is frequently used for impact testing of plastics, specifically though the practices of ASTM D4508. By means of our testing expertise and modular product design, we will help find the solution that is right for you. Give our test engineers a call today for help configuring the best test machine and accessories according to your standard.