| Item |
STANDARD |
| Appearance |
White crystal powder |
| Purity (HPLC) |
>=99.5% |
| Impurity(mg/kg) |
=<10 |
| Dark dots( No. /M2) |
=<12 |
| Loss on drying |
=<0.3% |
| Loss on ignition |
=<0.1% |
| Melting point |
154°C-158°C |
| Specific rotation[a]20D |
+100°~104° |
| Heavy metals (mg/kg) |
=<5 |
| Arsenic (mg/kg) |
=<0.5 |
| Chlorine(mg/kg) |
=<10 |
| Sulphate (mg/kg) |
=<10 |
| Pesticide residue (mg/kg) |
=<0.01 |
| Cu聽 (mg/kg) |
=<5 |
| SO2 Residue (mg/kg) |
=<15 |
| Total plate count(mg/kg) |
=<1000cfu/g |
| Coliform |
=<30mpn/100g |
| Yeast and mold |
=<25cfu/g |
| Salmonella |
Undetected |
| Shigella |
Undetected |
| Staphylococcus |
Undetected |
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