FDI-01 Labthink Impact Test device is based on free falling dart method to test impact resistance of packaging materials such as plastic films, laminates.
It conforms to ASTM D1709, ISO 7765-1-1988, JIS K7124-1, GB/T 9639.1-2008
The test can be perfomanced as follows:
Before starting the test, choose test method, and estimate an initial mass and ÃŽâ€m. Start the test. If the first specimen fails, decrease the mass of the falling dart by ÃŽâ€m. If the first specimen is not a failure, increase the mass of the falling dart by ÃŽâ€m. Continue the test according to this rule. In brief, increase or decrease by ÃŽâ€m according to whether the former specimen is a failure or not. After 20 specimens, calculate the total number of failed specimens N. If N equals to 10, the test is over. If N is less than 10, add specimens and continue to test until N equals to 10. If N is greater than 10, add specimen and continue the test until the number of non-failure specimens reaches 10. Then the tester calculates the test results automatically according to specific formulas.