Ask X3What does 49 CFR 173.435 (Table of A<sub>1</sub> and A<sub>2</sub> values for radionuclides) require?
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According to 49 CFR 173.435, the regulation provides a table listing the $A_1$ and $A_2$ values (in both TBq and Ci) along with the specific activity (in TBq/g and Ci/g) for various radionuclides, categorized by element symbol and atomic number.
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