choline chloride is the mostwidely used - and most economical - form of choline for supplementing diets. Specifications: 1) Content (choline chloride): 50% min. 2) Loss on drying: 1.5% max. 3) Heavy metal (PB): 20ppm max. 4) Trimethylamine: 200ppm max.5) Carrier: corn cob6) Particle size: 95% min. pass thru 20 mesh7) Appearance: yellow or brown particles Packing: net weight 25kg multi-ply paper bagsStorage: keep in a tightly closed container, store in a cool, dry, ventilated area