1.Technical Process
  
     Vitamin D₃ Powder 500 Feed Grade is obtained from the spray of Vitamin D₃ Oil Feed Grade.

2.Analysis method of Assay
  HPLC.Mobile phase,n-hexane:n-pentanol=996:4.Velocity,2.0ml/min.

Wavelength,254nm.

3.Usage
    As additives in feed premixes.

4.Packing
    25kg paper cartons lined with food grade PE bags.

5.Stability and storage
    Stored under dry,cool and dark condition and avoid moisture,water or heat.The shelf life is 24 months.