.Food Grade Specifications ITEM: Standard Characters: White powder Whiteness: 92% min Moisture : 18.00-20.00 Spot quantity : A /m2: 1.0% max Acidity: 15% max Ash: 0.25 max Protein: 0.4 %max Pb (mg/kg): 0.1%max As (mg/kg): 0.05%max SO2(mg/kg): 8.0max Smell : Have no strange smell .Supply 10,000mt/Month .ISO 9001:2008 and BV Certificate