SCHEDULE 23E+WRadioactive substances activities

PART 6E+WRadioactive substances activity exemptions

SECTION 9E+WTables and summation rules in this Part

Table 8E+W

30.  The Table 8 referred to in paragraph 29 is—

Table 8
Radionuclides in secular equilibrium
Parent radionuclideDaughter radionuclides
Sr-90+Y-90
Zr-93+Nb-93m
Zr-95+Nb-95
Zr-97+Nb-97
Ru-106+Rh-106
Ag-108m+Ag-108
Cs-137+Ba-137m
Ba-140+La-140
Ce-144+Pr-144
Pb-210+Bi-210, Po-210
Pb-212+Bi-212, Tl-208, Po-212
Bi-212+Tl-208, Po-212
Rn-220+Po-216
Rn-222+Po-218, Pb-214, Bi-214, Po-214
Ra-223+Rn-219, Po-215, Pb-211, Bi-211, Tl-207
Ra-224+Where Ra-224+ is referred to in Table 5: Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212
Where Ra-224+ is referred to in Table 7: Pb-212
Ra-226+Where Ra-226+ is referred to in [F1Table 4A and] Table 5: Rn-222, Po-218, Pb-214, Bi-214, [F2Po-214, Pb-210, Bi-210, Po-210]
Where Ra-226+ is referred to in Table 7: Rn-222, Po-218, Pb-214, Bi-214, Po-214
Ra-228+Ac-228
Th-226+Ra-222, Rn-218, Po-214
Th-228+Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Po-212, Tl-208
Th-229+Ra-225, Ac-225, Fr-221, At-217, Bi-213, Po-213, Pb-209
Th-232 secRa-228, Ac-228, Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Po-212, Tl-208
Th-234+Pa-234m
U-230+Th-226, Ra-222, Rn-218, Po-214
U-232+Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212
U-235+Th-231
U-238+Th-234, Pa-234m, Pa-234
U-238 secTh-234, Pa-234m, U-234, Th-230, Ra-226, Rn-222, Po-218, Pb-214, Bi-214[F3, Po-214, Pb-210, Bi-210, Po-210]
U-240+Np-240
Np-237+Pa-233
Am-242m+Am-242
Am-243+Np-239

Textual Amendments