Items Standard Specs. Testing Results Content (as dry product C7H5NaO2) 99.0-100.5 99.51 Loss on drying 2.0%max 1.38% Acidity of Alkalinity 0.2ml max 0.2ml(on the principle of 0.1mol/l NaOH) Heavy Metal (pb) 0.001%max 0.001% Halogenide(Fecl3) 0.02%max 0.02% Appearance Free flowing white powder Passed Total Chlorine 0.03%max 0.03% Clarity of Solution Clear & Colourless Passed Conclusion Qualified. Net 25kg/ new fiber bag.