| Appearance | White powder |
| Purity(HPLC) | 98% min. |
| Test of flavone | Positive |
| Particle-size | NLT100% 80 Mesh |
| Loss on drying |
2.0% max. |
| Heavy metal |
10 ppm max. |
| Arsenic(As) |
2 ppm max. |
| Lead(Pb) |
2 ppm max. |
| Mercuryz(Hg) |
1 ppm max. |
| Cadmium(Cd) |
0.5 ppm max. |
| Total number of bacteria |
100CFU/g |
|
Yeast |
100CFU/g |
|
Escherichia coli |
Negative |
|
Salmonella |
Negative |
|
Staphylococcus |
Negative |
*Anti-inflammation