This standard specifies the terms and definitions, basic parameters and composition, technical requirements, inspection methods, inspection rules, etc. of drop testers for Encasement parts. It is applicable to drop testers with a drop height of not more than 2,000 mm. A number of specification documents are cited, including general technical requirements for testing machines, Encasement terms inspection and test, etc. The basic parameters should include the drop height range, maximum load and maximum size of the specimen, etc. The technical requirements include the normal operation of the drop tester under specific environment and working conditions, as well as the requirements for the Impact surface.