Specification: 1) Grade: Food Grade, Pet food Grade 2) Bacterial index a) Total plate count: <5,000cfu/g b) E. Coli: Negative in 5g c) Salmonella: Negative in 10g 3) Physical properties: a) Appearance: Light yellow to snowy white powder b) Particle size: 95% pass 200/120/60/40mesh c) KCL gel strength(g/cm2) (1.5%, 0.2%KCL): ≥1200/1100/1000/450 d) Viscosity (CPS): ≥5 e) PH value: 7.0-10.0 f) Moisture≤12% g) Ash of not dissolve into acid: ≤ 1.0% h) Sulphate (count by SO42-): 15-40% i) Total ash : <30% j) Heavy metal (pb) (mg/Kg): ≤20 k) Hg (mg/kg): ≤1.0 l) Cd (mg/Kg): ≤1.0 m) As (mg/Kg): ≤2.0 n) Pb (mg/Kg): ≤5.0 Packaging: 25kg/bag or as per clients' requirements