GB/T 40277-2021纸、纸板和纸浆蓝光漫反射因数(ISO亮度)的测定室内日光条件标准
英文:Paper, board and pulps—Measurement of diffuse blue reflectance factor( ISO brightness)—Indoor daylight conditions GB/...
英文:Paper, board and pulps—Measurement of diffuse blue reflectance factor( ISO brightness)—Indoor daylight conditions GB/...