Properties Unit Standard Description - = Colourless Or White Crystal Identification & Solubility - = Pass Test Clarity & Color of Solution - = Pass Test Content % = 99.5-101.0 Moisture % = 7.5-9.0 Iron PPM 50 Heavy Metals PPM 10 Chloride PPM 50 Oxalate PPM 350 Sulphated Ash % 0.05 sulfate PPM 150 Readily Carbonisable substances - = Pass Test Arsenic PPM 1 Aluminum PPM 0.2 Bacteria Endotoxin IU/MG 0.5 Barium - = Pass Test Calcium - = Pass Test According To BP. 25kg composite bag.