F1SCHEDULE 23Radioactive substances activities

Annotations:
Amendments (Textual)

PART 7Radioactive substances activity exemptions

SECTION 9Tables and summation rules in this Part

Table 835

The Table 8 referred to in paragraph 34 is—

Table 8Radionuclides in secular equilibrium

Parent radionuclide

Daughter 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 Table 5: Rn-222, Po-218, Pb-214, Bi-214, Pb-210, Bi-210, Po-210, Po-214

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 sec

Ra-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 sec

Th-234, Pa-234m, U-234, Th-230, Ra-226, Rn-222, Po-218, Pb-214, Bi-214, Pb-210, Bi-210, Po-210, Po-214

U-240+

Np-240

Np-237+

Pa-233

Am-242m+

Am-242

Am-243+

Np-239