Appearance : A white or yellow-white powder
Assay(On dried basis) : 98.0%~100.5%
Whiteness : Not less than 68
State of solution : Clear and <= BY4
Optical rotation : Between +21°and+24°
Melting range : Between 107℃ and 117℃
Loss on drying : <= 0.8%
Residue on ingition : <= 0.1%
Bacteria amount : <= 1000cfu/g
Coliforms bacteria : Not mor than 30 MPN/100g
Pathogenic bacteria (salmonella, shigella, staphylococcus aureus) : Negative
Heavy metal : <= 4ppm
Lead : <= 3ppm
Arsenic : <= 1ppm
Cadmium : <= 1ppm
Mercury : <= 0.01 ppm
Identification : Positive