| ≥1 piece |
| Test item | Standard |
| Appearance | Light green-yellow powder |
| Loss on drying | <5.0% |
| Assay（HPLC） | Mangiferin≥80%-95% |
| Sulphated ash | <5.0% |
| Pb / Hg / Cd / Cu / As | <5 / <0.2 / <0.3 / <5 / <2 ppm |
| BHC / DDT / PCNB / Aldrin | <0.1 / <0.1 / <0.1 / <0.02 ppm |
| Solvent Residue | USP32 |
| Heavy metals | <10ppm |
| Yeast/moulds | Less than100cfu/g |
| Total bacteria count | Less than1000cfu/g |
| Salmonella | Negative |
| E-Coli | Negative |
| Pseudomonas aeruginosa | Negative |
| Staphylococcus aureus | Negative |