Test items | Specifications | ||||||
Appearance | White crystalline powder or granular | ||||||
PH | 5-7 | ||||||
Assay | 99.5% -100.5% | ||||||
Ash | ≤0.1% | ||||||
Melting point | 119-123℃ | ||||||
Lead(Pb) | ≤0.5% mg/kg | ||||||
Residuing sugars | ≤ 0.3% | ||||||
Ribitol and glycerol | ≤ 0.1% | ||||||
Loss on drying | ≤ 0.2% | ||||||
Cont of bacteria,cfu/g | ≤ 300 | ||||||
Yeast and Moulds,cfu/g | ≤ 100 | ||||||
Coliform MPN/g | ≤ 0.3 | ||||||
Salmonella enteriditis | Negtive | ||||||
Shigella | Negtive | ||||||
Staphylococcus aureus | Negtive |