y UnitedTest BEIJING UNITED TEST CO.,LTD. XJB-30 mainly used to test plastic, film, or sheet thickness below 1mm, impact by falling dart, check the energy when 50% of test specimen broken. Conform with standard: ISO 7765, ASTM D1709, GB 9639. Scope: Falling dart impact is a traditional method for evaluating the impact strength or toughness of a plastic film. This test uses a single dart configuration and a single drop height, while varying the weight of the dart. Test results can be used either as a quality control evaluation or for end use comparisons. Specimen size: Film samples that can be cut to 230 mm x 230 mm (9" x 9") specimens A minimum of 30 specimens are required for the test

y UnitedTest BEIJING UNITED TEST CO.,LTD. ISO 7765-1: Plastics film and sheeting -- Determination of impact resistance by the free-falling dart method -- Part 1: Staircase methods ASTM D1709: Standard Test Methods for Impact Resistance of Plastic Film by the Free-Falling Dart Method. 3, Main technical specification Impact height Loadframe weight unit, tools, power co 2/2