Puncture Impact Testing using a swinging pendulum arm overcame all of the previous difficulties. This shape ensures that the orientation of the test sample relative. The material is sensitive to the way in which loads are applied. It tends to measure the test result as units of energy to break the test sample. It is based on the pendulum impact system commonly used for Izod and Charpy impact tests which has proven to be very reliable for many years now and takes full advantage of a microprocessor controlled system. The tup profiles can quickly be changed which makes it ideal for evaluating packaging materials, especially as in most cases the tup can represent the components that are to be packaged in the material. The test sample takes a circular form so that the orientation of the material relative to the manufacturing processes is not effected.