| Color (APHA Pt-Co) |
<= 10 |
| Assay (GC on anhydrous basis) |
>= 99.5% |
| Residue after evaporation |
<= 0.0002%w/w |
| Water (KF) |
<= 0.03%w/w |
| Acidity (as Acetic acid) |
<= 0.002% |
| Subs. darkened by Sulfuric Acid |
Complying |
| Sulfur compounds (as S) |
<= 0.003% |
| Chloride (Cl) |
<= 2ppm |
| Heavy metals (as Pb) |
<= 0.5ppm |
| Phosphate (PO4) |
<= 0.5ppm |
| Silver (Ag) |
<= 20ppb |
| Aluminum (Al) |
<= 20ppb |
| Arsenic (As) |
<= 10ppb |
| Gold (Au) |
<= 20ppb |
| Boron (B) |
<= 10ppb |
| Barium (Ba) |
<= 10ppb |
| Beryllium (Be) |
<= 20ppb |
| Calcium (Ca) |
<= 100ppb |
| Cadmium (Cd) |
<= 20ppb |
| Cobalt (Co) |
<= 20ppb |
| Chromium (Cr) |
<= 10ppb |
| Copper (Cu) |
<= 20ppb |
| Iron (Fe) |
<= 20ppb |
| Gallium (Ga) |
<= 50ppb |
| Germanium (Ge) |
<= 50ppb |
| Lithium (Li) |
<= 20ppb |
| Potassium (K) |
<= 50ppb |
| Magnesium (Mg) |
<= 10ppb |
| Manganese (Mn) |
<= 10ppb |
| Molybdenum (Mo) |
<= 20ppb |
| Nickel (Ni) |
<= 20ppb |
| Lead (Pb) |
<= 30ppb |
| Antimony (Sb) |
<= 10ppb |
| Silicon (Si) |
<= 50ppb |
| Tin (Sn) |
<= 30ppb |
| Strontium (Sr) |
<= 10ppb |
| Titanium (Ti) |
<= 20ppb |
| Vanadium (V) |
<= 20ppb |
| Zinc (Zn) |
<= 20ppb |
| Particle count > 0.5µm |
<= 100P/ml |
