GB/T 4 2924.4 - 2023 Dynamic analysis method for the determination of corrosion resistance of focused plastics combustion flow. It uses a cone corrosion meter to clarify the measurement principle and specify key parameters of the instrument, such as Power of the cone radiant heater, radiation intensity distribution, etc. Detailed preparation of plastic samples, covering size and shape requirements. Standardize the test process, including heating rate, analysis time control, and monitoring of gas corrosion performance generated by combustion. Through this standard, the corrosion resistance of plastic combustion flow can be accurately evaluated, providing a strong basis for the safe use of plastics in specific scenarios and related Product Research & Development.