Specification PH :4.0-7.0 Foreign Matter: Complies Loss on drying: 15.0% Sulfated Ash: â?¤0.6% Iron: â?¤0.001% Oxidizing substances : 0.002% Sulfur dioxide: 0.005% Microbial contamination : Complies Identification A to C : Complies Storage It should be stored in dry and cool place, keep from sunshine and mix storage. Package 25kg/kraft bag or 25kg/fiber drum Packing Size: 1.8cbm/mt (bag) or D37cm*H53cm (drum) G.W. 25.2kg (bag) or 27.5kg (drum) Standard It comply with USP/EP/BP