Paragraph 3 References in Table 1 and Table 2 to + and sec
Where any radionuclide carries the suffix “+” or “sec” in Table 1 or Table 2—
(a)
that radionuclide represents the parent radionuclide in secular equilibrium with the corresponding daughter radionuclides which are identified in column 2 of Table 3 in respect of that parent radionuclide, and
(b)
a concentration value given in a table in this Part in respect of such a parent radionuclide is the value for the parent radionuclide alone, but already takes into account the daughter radionuclides present.