Specific gravity 4.1 - 4.2 g/cm3 min BaS04 82% min Water soluble alkaline 250 mg/kg max Metals as calcium 250 ppm max Extractable carbonates 3000 ppm max Mercury 1.00 ppm max Cadmium 3.00 ppm max Lead 1000 mg/kg max Arsenic 40 mg/kg max Extractable sulphides 250 ppm max Moisture 1% max Lump size 200 mesh - 96 % min. Metallic Iron Zero Acceptable Residue greater than 75um Mass fraction 3.0% Maximum Minimum Order 500MT/month
