GB/T 1040.1-2025 "Plastics, Determination of tensile performance, Part 1: General" as the basic standard for the determination of tensile performance of plastics, systematically defines the core elements of tensile performance testing. It explains in detail the basic principles of tensile performance measurement, standardizes the shape, size and preparatory requirements of various samples such as dumbbells and strips, clarifies the technical parameters such as the force value accuracy of the testing machine and the configuration of the fixture, and strictly limits the test environmental conditions such as temperature and Humidity. At the same time, the sample state adjustment, test loading rate control, data collection processing and result calculation and evaluation process are carefully stipulated to provide a comprehensive and unified general technical specification for plastic tensile performance testing, which helps to improve the accuracy and comparability of test results.