Sales Specification Appearance: white powder Identification A.B.: Pass the test Content as CaCO3: >98.5% Acid insolubles: 0.2% Arsenic (As): 0.0003% Heavy metals (as Pb): 0.0020% Cadmium: 0.0001% Mercury:0.00001% Lead (as Pb): 0.3 ppm Moisture: 2% Magnesium & Alkali Salts: 1% Barium: Negative Iron: 0.02% Fluoride: 0.005% Chlorides: 0.033% Sulphate: 0.2% OVI: Pass the test Bulk density: 1.0 to 1.2g/ml Packing 55.12 lb bag, 40 bags per pallet