Quality index: 1) Type Zinc Oxide 99%: Content (ZnO)-------------------------------------99%min MnO-------------------------------------------------0.001%max PbO--------------------------------------------------0.001%max CuO --------------------------------------------------0.001%max Heat Loss--------------------------------------------0.3%max HCl Insoluble Matter-----------------------------0.01%max Water Soluble Matter----------------------------0.1%max 45um Sieve Residue----------------------------- -0.15%max 2) Type Zinc Oxide 99.5%: Content (ZnO)-------------------------------------99.5%min MnO-------------------------------------------------0.0005%max PbO--------------------------------------------------0.05%max CuO --------------------------------------------------0.0005%max Heat Loss--------------------------------------------0.3%max HCl Insoluble Matter-----------------------------0.01%max Water Soluble Matter----------------------------0.1%max 45um Sieve Residue----------------------------- -0.15%max 3) Type Zinc Oxide 99.7%: Content (ZnO)-------------------------------------99.7%min MnO-------------------------------------------------0.0004%max PbO--------------------------------------------------0.037%max CuO --------------------------------------------------0.0004%max Heat Loss--------------------------------------------0.3%max HCl Insoluble Matter-----------------------------0.01%max Water Soluble Matter----------------------------0.1%max 45um Sieve Residue----------------------------- -0.15%max Uses: Rubber Industry, Paints Industry, Ceramics Industry, floor tile, glass, feed additive, etc. Package: woven bag,inner with plastic bag.25KG/bag ,20 mts in the 20'FCL or upon clients' request.