This standard specifies the determination methods of solar ultraviolet transmittance, solar direct transmittance and solar total transmittance of automotive safety glass and various safety glass used for road motor vehicles. This standard is applicable to the determination of solar energy transmittance of safety glass for automobiles and other road motor vehicles.
GB/T 5137.4-2001 history
2020GB/T 5137.4-2020 Test methods of safety glazing materials used on road vehicles—Part 4:Determination of solar characteristic
2001GB/T 5137.4-2001 Road vehicles--Safety glazing materials--Method for the determination of solar transmittance