... 142.Base Weight:80gsm,75gsm,70gsm 3.Whiteness: 92-94,98-100,102-104,104-1064.Materials:100% wood Basis ... 50kg/15mmTear Resistance MD50 - 60gfTear Resistance CD45 - 55gfBrightness (white only)98 (min)%ISOColour Shade L92.00 - 94.00-Colour Shade a2.00 ... m≥9195101Densityg/cm3≥0.72RoughnessWSml /min.200~350200~400200~400FSml /min.200~350200~400200~400Brightness%≥92≥96≥98≥102≥106Opacity%≥82≥84≥86Cobb60 ...