| Test items | Specification | Test Method | ||
| Assay (Nobiletin) | ≥30% | HPLC | ||
| Appearance | Off-white to dark brown powder | Visual | ||
| Residue on Ignition | ≤ 5.0% | USP<281> | ||
| Synephrine | Negative | HPLC | ||
| Loss on drying | ≤ 5.0% | USP<731> | ||
| Heavy Metals | ≤10ppm | Atomic Absorption | ||
| Arsenic (As) | ≤1.0ppm | Atomic Absorption | ||
| Cadmium (Cd) | ≤1.0ppm | Atomic Absorption | ||
| Lead (Pb) | ≤1.0ppm | Atomic Absorption | ||
| Mercury (Hg) | ≤0.1ppm | Atomic Absorption | ||
| Total Plate Count | ≤1000 CFU/g | AOAC | ||
| Yeast & Mold | ≤100cfu/g | AOAC | ||
| E. coli | Negative/10g | AOAC | ||
| Salmonella | Negative/25g | AOAC | ||
| Staph Aureus | Negative/10g | AOAC |