GB/T 1040.2 - 2022 focuses on the test conditions for the measurement of tensile performance of molded and extruded plastics. It specifies the preparatory standards for such plastic samples to ensure that they can represent the characteristics of the product. Clarify the accuracy and range of the test equipment, and strictly describe the temperature, Humidity, tensile speed and other environment and operating conditions during tensile testing. According to this standard, the tensile strength, fracture elongation and other key performance indicators of molded and extruded plastics can be accurately determined, providing a reliable basis for mass control of plastic products, material research and development and application selection, and promoting the high-mass development of the plastics industry.