A. Service we can provide: 1. Quality assurance. Free samples for your check up before shipment, keep samples for 2 years after shipment. 2. Prompt delivery time with professional documents. 3. Packing as your requirements, with pallets or without pallets. 4. Prompt photos of cargoes before shipment or after shipment for your check up. 5. We can mix different cargoes into one container B.Detailed informations about Tautine Assay: 98.5% min Heavy metals(Pb): 20ppm max Arsenic: 2ppm max Loss on drying: 0.2% max Residue on ignition: 0.1% max Chloride: 0.011% max Sulphate: 0.014% max Ammonium: 0.02% max C. Usages: Pharmaceutical ingredients, health products, food additives, feed additives and beverages. Welcome to your inquiry for our products to discuss the details.