Specification: Plant latin name: Folium Ginkgo Use Part: Leaf Appearance: Brown Yellow Powder Active Ingredient: Ginkgolides, Lactones Content: Min.24%,6% by HPLC Particle size: 80 Mesh Heavy metals: ＜10PPM Ash: Max. 5% Loss on Drying: Max. 5% Formula and Structure: Microbiological Control Total plate count: ＜1000CFU/gm E. Coil: Negative Salmonella: Negative Yeast & Mold: ＜100CFU/gm Storage: Store in cool & dry place. Keep away from strong light and heat. Shelf life: Two years when properly stored. Packing:Enterprise standard. Packing: 25 kg/drum (38*38*52cm)