Botanical name: Bilberry (Vaccinium myrtillus) Appearance: Purple powder Loss on drying: < 5.0% Ash: <5.0% Arsenic:< 1ppm Heavy metals:<10ppm Assay a:(by HPLC): Anthocyanidins > 25% , b:(by UV):Anthocyanidins >25% Inner packing: 25kg/double-layer aluminum foil bag Outer packing: Fiberboard drum