| Item | Specifications |
| Appearance | White crystalline powder |
| Odor | Odorless |
| Loss on drying | NMT 5.0% |
| Assay(BHB-Na) | 98.0%~102%(On dried basis) |
| Assay(BHB) | 80.0%-86.%(On dried basis) |
| Heavy metals | NMT 10ppm |
| Lead | NMT 3ppm |
| Cadmium | NMT 1ppm |
| Mercury | NMT 0.5ppm |
| Arsenic | NMT 1.5ppm |
| Total plate count | NMT 1000cfu/g |
| Yeast&Mold | NMT 100cfu/g |
| Salmonella | Negative in 10g |
| E.coli | Negative in 10g |
1kg/bag, 25kg/fiber drum.
In the well-sealed container, store in a cool and dry place, away from strong light and heat.