Appearance Colorless crystals or crystalline granular,slightly ammanlacal
Assay 99%min
Clarity and color of solution Clear, soluble in water
Residue on ignition(as sulphate) 0.1% max
Phosphate 0.002% max
PH, 25℃ 4.8-5.3
Heay metals(as Pb) 0.001% max
Chloride 0.002% max
Sulphate 0.01% max
Iron 0.001% max
Microbial limits Plate count: 10000 /g max
Total coliform: 10/g max
E.Coli: Negative
Coagulase positive staphylococcus: Negative
Salmonella: Negative
Yeast and Mold: 100/g max
