| TEST |
| Meets ACS Reagent Chemical Requirements | |
| For Laboratory,Research,or Manufacturing Use | |
| Material darkens when exposed to air and light. | |
| ACS - Assay (HBr) (by acidimetry) | 47.0 - 49.0 % |
| ACS - Residue after Ignition | <= 0.002 % |
| ACS - Chloride (Cl) | <= 0.05 % |
| ACS - Iodide (I) | <= 0.003 % |
| ACS - Phosphate (PO䉋) | <= 0.001 % |
| ACS - Sulfate and Sulfite (as SO䉋) | <= 0.003 % |
| Trace Impurities - ACS - Heavy Metals (as Pb) | <= 5 ppm |
| Trace Impurities - Iron (Fe) | <= 1 ppm |
| Trace Impurities - Selenium (Se) | <= 0.010 ppm |