Standard BS EN 1621-1-2012、 BS EN 1621-2-2014 Description This tester is applied on buffer material test with a standard weight of 5kg hammer, drop height is usually 100cm, can produce about 50 joules to hit against test pieces vertically. This tester can read remaining energy value is absorbed by specimen after 50 joules force impact. Generally it is used to protect personnel and sophisticated objects, the impact absorbing ability of packaging materials during transportation.