A Dart Impact Tester is a specialized instrument used to determine the impact resistance of plastic films, sheets, and similar materials. It measures the ability of these materials to withstand sudden impact under standardized conditions, making it essential for industries like packaging, manufacturing, and quality control. The tester drops a weighted dart from a specified height onto the material to simulate real-world impact conditions. By analyzing the results, manufacturers can ensure their materials meet strength and durability standards, reducing product failure during usage or transportation.