Appearance: Unformed & Brown powder, Non-abnormity Impurity and agglomeration.

Odor & Taste:characteristic

Mesh: ≥80Meshes

Loss on dry  ≤ 3.0%

Ash: ≤ 5.0%

Acid-Insoluble Ash Content: ≤ 3.0%

Impurity: Negative

Total Flavonoids  ≥ 12%      another Specification 9%

Rubber Content ≥70%

Pb content ≤ 3.0PPm

Total Plate Count ≤1000cfu/g

Mold: ≤100cfu/g

Yeast: ≤100cfg/g

E. Coli: Negative