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| TEST |
| 1. Assay 32-38% |
| 2. Residue after ignition 0.0001% |
| 3. Sulfate 0.00001% |
| 4. Sulfite 0.00001% |
| 5. Ammonium 0.00002% |
| Ag 5 ppb | Al 1 ppb | As 1 ppb |
| Au 1 ppb | B 2 ppb | Ba 1 ppb |
| Be 1 ppb | Bi 1 ppb | Ca 5 ppb |
| Cd 1 ppb | Ce 1 ppb | Co 1 ppb |
| Cr 1 ppb | Cs 1 ppb | Cu 1 ppb |
| Dy 1 ppb | Er 1 ppb | Eu 1 ppb |
| Fe 5 ppb | Ga 1 ppb | Ge 1 ppb |
| Hf 1 ppb | Hg 1 ppb | Ho 1 ppb |
| In 1 ppb | Ir 1 ppb | K 5 ppb |
| La 1 ppb | Li 2 ppb | Lu 1 ppb |