1, according to IEC60068-2-GB/T2423.55-GB4706.1, GB8898 and GB7000, IEC884 and UL1244 and relevant provision is made and be, mainly used for testing the household and similar electrical appliances shell, operation lever, the handle knob, and indicator shell subjected to mechanical impact ability. 2, the impact is made of stainless steel. Type (8) The impact energy error 0.14J　±0.014J　 0.20J　±0.020J　 0.35J　±0.03J 0.50J　±0.04J 0.70J　±0.05J 1.00J　±0.05J 1.50J　±0.07J 2.00J　±0.08J Technical parameters:: Long degrees:211mm Heavy quantity:1250g Outside diameter:50 mm Hammerhead weight :60g Hammer radius:10mm Impact components:Including firing ball handle and hammer, weight of 250 g, hammer together by white first made imines Impact release force:Less than 10 N