Confirm To Standards ASTM D1709, JIS K7124, GB 9639,ASTM D3420,GB 8809-88,NF T54-116 Function and Usage The instrument is designed and manufactured according to the GB880, applied to determine the film materials like plastics and rubber and the impact elasticity like tinsel materials and so on. Through the piercer of semi globe shape, the instrument impacts and breaks through the sample with certain ram speed so as to measure the consumptive energy of the piercer, and use this energy to estimate the energy value of pendulum impact resistance of the film sample. It is applied to conduct impact test on plastic film and sheeting and used to estimate the material property of impact resistance. Each technical indicator of this product meets the requirements for the test equipment in the free falling dart method of ISO7765-85 Determination for Impact Resistance of Plastic Film and Sheeting and GB9639-88 Impact Resistance Test of Plastic Film and Sheeting, and the product is in accordance with the professional standard of ZBN72026-80 Technical Conditions of Falling dart impact meter.