Refined iodized table salt 6.2 sq km exploitable underground salt area Exploitble storage of 200,000,000 tons. ISO 9001-200 Index Item Purified Salt Super Grade A grade Physical indexes/PI Whiteness≥ 80 75 Fineness %≥ 0.15 0.85mm 85 80 Chemical Index NaCl≥ 99.10 98.50 Moisture ≤ 0.30 0.50 Water insoluble ≤ 0.05 0.10 Water soluble≤ - - hygienic specification/ Health Indicators Pb≤ 1.00 As≤ 0.50 F≤ 5.00 Ba≤ 15.00 KiO3 mg/kg I≤ 35±15(20 50) Anti-caking agent mg/kg K[Fe2(CN)6Fe3]/ 10.00 K4[Fe(CN)6]·3H2O