Items Standards Appearance Transparent liquid Optical purity(l+), % 95 min Lubricious date, apha 50 Assay, % 80 min Density at 20 1.19~1.21g/ml Sulphate, % 0.005 max Chloride, % 0.002 max Residue on ignition, % 0.1 max Iron, ppm 10 max Heavy metals, ppm 10 max Arsenic, ppm 1 max Lead, ppm 0.5 max Mercury, ppm 1max Cyanide, ppm 5max Limit of citric, oxalic, Phosphoric and tartaric acid Past test fcciv Reducing sugars Past test fcciv. 25, 50, 100, 1200kg /drum