GB/T 5137.4-2020 specifies nine solar energy characteristic test methods for automotive safety glass, including solar ultraviolet, visible light, and infrared transmittance, reflectance, and absorptance. It is applicable to the testing of the solar energy performance of automotive safety glass. The tests must be conducted under environmental conditions of 20°C ± 5°C and relative humidity of 30%–60%. Core instruments such as spectrophotometers, solar simulators, and integrating spheres are used to accurately collect spectral data and calculate relevant indicators through standardized procedures. This standard replaces the previous version and provides a unified basis for evaluating the energy-saving and heat-insulating performance of automotive glass, contributing to improved driving comfort and vehicle energy consumption control.
| Status | Active | ||
|---|---|---|---|
| CCS | T34 | ICS | 43.040.60 |
| Release Date | 2020-03-31 00:00:00 | Implementation Date | 2021-02-01 00:00:00 |
