Specification : brightness: 102-104%(class a) size: a4 weight: 80 gsm size: 210mm x 297mm, brightness: 102-104% wood pulp: 100% wood pulp color: white whiteness: cie167 capability: high speed copying100ppm, laser roughness: 140ml/min surface roughness ts ml/min: 75-175 surface roughness bs ml/min: 100-200 bending stiffness md: 110 mn bending stiffness cd: >50 mn thickness : not lees than110 um density : 0,72 g/cm3 roughness : ws 200~400 ml/min roughness : fs 200~400 ml/min brightness : 102% - opacity: 95% not opacity : 86% cobb60 data : 30 g/m2 tensile md : 6.2 kg/15mm tensile cd : 2.5 kg/15 mm moisture : 4~7 % packing details 500 sheets per ream. 5 reams per box. 1560 boxes per 20ft container (with pallet). 1600 boxes per 20ft container (without pallet). 7800 reams total in one 20fcl (with pallet). 8000 reams total in one 20fcl (without pallet). features and benefits perfect for high-quality printing and copying super high whiteness produces outstanding clarity and contrast for all graphics and text precision-cut edges for trouble-free performance user-friendly box design with built-in handle for easy carrying, tear slot perforation for easy access to the reams and label for filing