GB/T 4857.17-2017 is part 17 of the basic test standard for transported Encasement parts. It provides general rules for the preparation of the performance test outline for transported Encasement parts, specifying that the purpose of the test is to evaluate the capability of Encasement protective products. It specifies the preparation process of the outline, including determining the test items, selecting the appropriate test methods, setting reasonable test parameters, etc. At the same time, it provides guidance on the preparation of the specimen and the evaluation method of the results. The standard helps relevant personnel to scientifically formulate the test outline, making the Encasement test more standardized and effective, ensuring that the Encasement can withstand the test of the actual transportation environment and protect the safety of the contents.