| ITEM | STANDARD |
| Appearance | Dark-violet fine powder |
| Odor | Characteristic |
| Tasted | Characteristic |
| Assay(Anthocyanins) | 25% Min |
| Sieve Analysis | 100% pass 80 mesh |
| Loss on Drying | 5% Max. |
| Bulk density | 45-55g/100ml |
| Sulphated Ash | 4% Max |
| Extract Solvent | Alcohol & Water |
| Heavy Metal | 10ppm Max |
| As | 5ppm Max |
| Residual Solvents | 0.05% Max |
| Total Plate Count | 1000cfu/g Max |
| Yeast &Mold | 100cfu/g Max |
| E.Coli | Negative |
| Salmonella | Negative |
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