Conforms to GB/T3185-92 standard project Indicators BA01-05 High grade First grade Qualified High grade First grade Qualified Zinc oxide (by duy goods)% 99.70 99.50 99.40 99.70 99.50 99.40 Metal (by zinc)% 0.008 none none 0.008 Lead oxide (by Pb)% 0.037 0.05 0.14 Manganese oxide(by Mn)% 0.0001 0.0001 0.0003 Copper chloride (by cu)% 0.0002 0.0004 0.0007 Hydrochloric acid insoluble% 0.2 0.008 0.05 Ignition decrement 0.10 0.2 0.2 Screen tailings(Mesh of 45mm)% 0.10 0.15 0.20 0.10 0.15 0.20 Water-soluble% 0.10 0.10 0.15 0.10 0.10 0.15 105oC Volatiles% 0.3 0.4 0.5 0.3 0.4 0.5 Blotting /100g 14 14 14 Colour (Compared with standard) Approximate Micro Micro Reducing power (Compared with standard)% 100 95 90. 25kg/bag.