Home / Standards / GB/T 5137.2-2020 GB/T 5137.2-2020 Active Test methods of safety glazing materials used on road vehicles—Part 2:Optical properties tests 汽车安全玻璃试验方法 第2部分:光学性能试验 Standard Type GBT ICS 43.040.60 CCS T34 Status 现行 Issue Date 2020-03-31 Implementation 2021-02-01 Responsible Dept 工业和信息化部 Drafting Unit N/A