GB/T 5137.4 - 2020 stipulates the test method of solar energy characteristics of automotive safety Glass. It specifies the accuracy requirements of the equipment required for the test, such as Light spectrum meter, and specifies the sample selection and Installation method. Detailed solar energy characteristic test process, including the determination steps of parameters such as light transmittance and Absorption of different wavelengths. Through this standard, the barrier and transmission performance of automotive safety Glass to solar energy can be accurately evaluated, providing a basis for the production and selection of automotive Glass, helping to improve the comfort in the car, optimize the energy utilization efficiency of the vehicle, and ensure the driving safety and driving experience.