| ITEM | STANDARD |
| Resveratrol(HPLC) | ≥98.0% |
| Emodin(HPLC) | ≤0.5% |
| Appearance | White Powder |
| Odor & Taste | Characteristic |
| Particle size | 100% through 80 mesh |
| Loss on drying | ≤0.5% |
| Sulphated Ash | ≤0.5% |
| Heavy metals | ≤10ppm |
| Arsenic | ≤2.0ppm |
| Mercury | ≤0.1ppm |
| Total Plate Count | ≤1,000cfu/g |
| Yeasts & Molds | ≤100cfu/g |
| E.coli | Negative |
| Salmonella | Negative |
