GB/T 2680-2021建筑玻璃可见光透射比、太阳光直接透射比、太阳能总透射比、紫外线透射比及有关窗玻璃参数的测定标准
英文:Glass in building—Determination of light transmittance, solar direct transmittance, total solar energy transmittance,...
英文:Glass in building—Determination of light transmittance, solar direct transmittance, total solar energy transmittance,...