Appearance : white to light yellow powder
Tast/oder : no strong oders
Assay by cpc on dry basis : 95% min
Specifie rotation : -20----30
PH : 5.5---7.5
Tap density : 0.65-0.72g/ml
Mesh : 100% pass 80mesh
Solubility : soluble 5% water solution be clear
Sulfate : 0.24% max
Loss on dry : 10% max
Residue on lgnition : 20% --30%
Chloride : 5000 ppm max
Arsenic : 2ppm max
Protein : 4.5% max
Heavey metals : 10ppm max
Total plate count : 1000cfu/g max
Yeast & mold : 100 cfu/g
Salmonella : negative
e.coli : negative