GB/T 8941-2007.Paper and board-Measurement of specular gloss(20° 45° 75 ). 1范围 GB/T 8941规定了以20°.45°、...
GB/T 8941-2013 纸和纸板镜面光泽度的测定
GB/T 8941-2013.Paper and board-Measurement of specular gloss. GB/T 8941规定了以20°、45"、75*光泽度仪测定纸和纸板镜面光泽...