1.1 ,This method covers the determination of bromine (Br) and chlorine (Cl) in uranium hexafluoride (UF₆) and uranyl nitrate solution. The method as written covers the determination of bromine in UF₆ over the concentration range of 0.2 to 8 µ,g/g, uranium basis. The chlorine in UF₆ can be determined over the range of 4 to 160 µ,g/g, uranium basis. Higher concentrations may be covered by appropriate dilutions. The detection limit for Br is 0.2 µ,g/g uranium basis and for Cl is 4 µ,g/g uranium basis.