| Meets A.C.S. Specifications |
| Meets Reagent Specifications for testing USP/NF monographs |
| Appearance | Passes Test |
| Assay (HNO3) | 69.0 - 70.0 % |
| Color (APHA) | max. 10 |
| Specific Gravity at 60 /60°F | 1.416 - 1.420 |
| Residue after Ignition | max. 4 ppm |
| Trace Impurities (in ppm): |
| Chloride (Cl) | max. 0.1 |
| Phosphate (PO4) | max. 0.2 |
| Sulfate (SO4) | max. 0.5 |
| Trace Impurities (in ppb): |
| Aluminum (Al) | max. 100 |
| Arsenic and Antimony (as As) | max. 4 |
| Boron (B) | max. 50 |
| Calcium (Ca) | max. 200 |
| Chromium (Cr) | max. 100 |
| Copper (Cu) | max. 50 |
| Gold (Au) | max. 200 |
| Heavy Metals (as Pb) | max. 100 |
| Iron (Fe) | max. 100 |
| Lead (Pb) | max. 100 |
| Magnesium (Mg) | max. 100 |
| Manganese (Mn) | max. 100 |
| Mercury (Hg) | max. 5 |
| Nickel (Ni) | max. 50 |
| Potassium (K) | max. 300 |
| Tin (Sn) | max. 200 |
| Titanium (Ti) | max. 200 |
| Zinc (Zn) | max. 200 |