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<p>This document specifies a method for the determination of uranium concentrations in nitric acid or TBP-DILUANT (for example TBP-kerosene) solutions coming from the nuclear fuel cycle.</p>
<p>The method is applicable</p>
<p>— for process control of solutions, free of suspension, which contain between 10 g/l to 300 g/l uranium, and</p>
<p>— for high accuracy purposes (Safeguards) to nitric acid solutions, free of suspension, which contain between 100 g/l and 220 g/l uranium.</p>
<p>Having</p>
<p>— the content of neptunium and plutonium impurities in the solution less than 1 % of the uranium content.</p>
<p>— the content of neutron poisons (gadolinium, erbium) less than 1 % of the uranium content to ensure the absence of significant interferences at the level of required precision, for high accuracy purposes.</p>
<p>The method is applicable to solid samples as well, provided that they can be fully dissolved in nitric acid.</p>
Reģistrācijas numurs (WIID)
78821
Darbības sfēra
<p>This document specifies a method for the determination of uranium concentrations in nitric acid or TBP-DILUANT (for example TBP-kerosene) solutions coming from the nuclear fuel cycle.</p>
<p>The method is applicable</p>
<p>— for process control of solutions, free of suspension, which contain between 10 g/l to 300 g/l uranium, and</p>
<p>— for high accuracy purposes (Safeguards) to nitric acid solutions, free of suspension, which contain between 100 g/l and 220 g/l uranium.</p>
<p>Having</p>
<p>— the content of neptunium and plutonium impurities in the solution less than 1 % of the uranium content.</p>
<p>— the content of neutron poisons (gadolinium, erbium) less than 1 % of the uranium content to ensure the absence of significant interferences at the level of required precision, for high accuracy purposes.</p>
<p>The method is applicable to solid samples as well, provided that they can be fully dissolved in nitric acid.</p>
