Guangzhou Shounuo Scientific Instrument Co., Ltd. SN-LB falling dart impact tester is suitable for the packaging industry, film manufacturers, packaging material testing institutions, etc. to measure the impact resistance of plastic films, sheets and other materials; it complies with ISO7765-85 "Plastic Films and Determination of Impact Resistance of Sheets" and GB9639-88 "Test of Impact Resistance of Plastic Films and Sheets" and complies with ZBN72026-80 "Technical Conditions of Falling Dart Impact Testing Machine" standard.