Exempt material activity concentrations and exempt consignment activity limits for radionuclides.

The Table of Exempt material activity concentrations and exempt consignment activity limits for radionuclides is as follows: Symbol of radionuclide Element and atomic number Activity concentration for exempt material (Bq/g) Activity concentration for exempt material (Ci/g) Activity limit for exempt consignment (Bq) Activity limit for exempt consignment (Ci) Ac-225 Actinium (89) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Ac-227 1.0 × 10 −1 2.7 × 10 −12 1.0 × 10 3 2.7 × 10 −8 Ac-228 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Ag-105 Silver (47) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ag-108m (b) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Ag-110m 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Ag-111 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Al-26 Aluminum (13) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Am-241 Americium (95) 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Am-242m (b) 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Am-243 (b) 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Ar-37 Argon (18) 1.0 × 10 6 2.7 × 10 −5 1.0 × 10 8 2.7 × 10 −3 Ar-39 1.0 × 10 7 2.7 × 10 −4 1.0 × 10 4 2.7 × 10 −7 Ar-41 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 9 2.7 × 10 −2 As-72 Arsenic (33) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 As-73 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 As-74 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 As-76 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 As-77 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 At-211 Astatine (85) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Au-193 Gold (79) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Au-194 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Au-195 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Au-198 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Au-199 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ba-131 Barium (56) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ba-133 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ba-133m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ba-140 (b) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Be-7 Beryllium (4) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Be-10 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 6 2.7 × 10 −5 Bi-205 Bismuth (83) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Bi-206 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Bi-207 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Bi-210 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Bi-210m 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Bi-212 (b) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Bk-247 Berkelium (97) 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Bk-249 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Br-76 Bromine (35) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Br-77 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Br-82 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 C-11 Carbon (6) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 C-14 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Ca-41 Calcium (20) 1.0 × 10 5 2.7 × 10 −6 1.0 × 10 7 2.7 × 10 −4 Ca-45 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Ca-47 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Cd-109 Cadmium (48) 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 6 2.7 × 10 −5 Cd-113m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Cd-115 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Cd-115m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Ce-139 Cerium (58) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ce-141 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Ce-143 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ce-144 (b) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Cf-248 Californium (98) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Cf-249 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Cf-250 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Cf-251 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Cf-252 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Cf-253 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Cf-254 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Cl-36 Chlorine (17) 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 6 2.7 × 10 −5 Cl-38 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Cm-240 Curium (96) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Cm-241 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Cm-242 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Cm-243 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Cm-244 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Cm-245 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Cm-246 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Cm-247 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Cm-248 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Co-55 Cobalt (27) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Co-56 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Co-57 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Co-58 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Co-58m 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Co-60 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Cr-51 Chromium (24) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Cs-129 Cesium (55) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Cs-131 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Cs-132 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Cs-134 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Cs-134m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 5 2.7 × 10 −6 Cs-135 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Cs-136 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Cs-137 (b) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Cu-64 Copper (29) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Cu-67 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Dy-159 Dysprosium (66) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Dy-165 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Dy-166 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Er-169 Erbium (68) 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Er-171 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Eu-147 Europium (63) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Eu-148 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Eu-149 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Eu-150 (short lived) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Eu-150 (long lived) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Eu-152 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Eu-152m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Eu-154 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Eu-155 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Eu-156 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 F-18 Fluorine (9) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Fe-52 Iron (26) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Fe-55 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 6 2.7 × 10 −5 Fe-59 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Fe-60 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Ga-67 Gallium (31) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ga-68 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Ga-72 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Gd-146 Gadolinium (64) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Gd-148 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Gd-153 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Gd-159 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Ge-68 Germanium (32) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Ge-71 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 8 2.7 × 10 −3 Ge-77 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Hf-172 Hafnium (72) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Hf-175 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Hf-181 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Hf-182 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Hg-194 Mercury (80) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Hg-195m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Hg-197 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Hg-197m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Hg-203 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Ho-166 Holmium (67) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 5 2.7 × 10 −6 Ho-166m 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 I-123 Iodine (53) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 I-124 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 I-125 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 I-126 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 I-129 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 I-131 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 I-132 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 I-133 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 I-134 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 I-135 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 In-111 Indium (49) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 In-113m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 In-114m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 In-115m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ir-189 Iridium (77) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Ir-190 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Ir-192 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Ir-194 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 K-40 Potassium (19) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 K-42 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 K-43 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Kr-79 Krypton (36) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 5 2.7 × 10 −6 Kr-81 Krypton (36) 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Kr-85 1.0 × 10 5 2.7 × 10 −6 1.0 × 10 4 2.7 × 10 −7 Kr-85m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 10 2.7 × 10 −1 Kr-87 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 9 2.7 × 10 −2 La-137 Lanthanum (57) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 La-140 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Lu-172 Lutetium (71) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Lu-173 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Lu-174 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Lu-174m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Lu-177 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Mg-28 Magnesium (12) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Mn-52 Manganese (25) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Mn-53 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 9 2.7 × 10 −2 Mn-54 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Mn-56 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Mo-93 Molybdenum (42) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 8 2.7 × 10 −3 Mo-99 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 N-13 Nitrogen (7) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 9 2.7 × 10 −2 Na-22 Sodium (11) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Na-24 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Nb-93m Niobium (41) 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Nb-94 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Nb-95 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Nb-97 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Nd-147 Neodymium (60) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Nd-149 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ni-59 Nickel (28) 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 8 2.7 × 10 −3 Ni-63 1.0 × 10 5 2.7 × 10 −6 1.0 × 10 8 2.7 × 10 −3 Ni-65 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Np-235 Neptunium (93) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Np-236 (short-lived) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Np-236 (long-lived) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Np-237 (b) 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Np-239 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Os-185 Osmium (76) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Os-191 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Os-191m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Os-193 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Os-194 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 P-32 Phosphorus (15) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 5 2.7 × 10 −6 P-33 1.0 × 10 5 2.7 × 10 −6 1.0 × 10 8 2.7 × 10 −3 Pa-230 Protactinium (91) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Pa-231 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Pa-233 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Pb-201 Lead (82) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Pb-202 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Pb-203 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Pb-205 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Pb-210 (b) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Pb-212 (b) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Pd-103 Palladium (46) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 8 2.7 × 10 −3 Pd-107 1.0 × 10 5 2.7 × 10 −6 1.0 × 10 8 2.7 × 10 −3 Pd-109 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Pm-143 Promethium (61) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Pm-144 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Pm-145 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Pm-147 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Pm-148m 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Pm-149 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Pm-151 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Po-210 Polonium (84) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Pr-142 Praseodymium (59) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Pr-143 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 6 2.7 × 10 −5 Pt-188 Platinum (78) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Pt-191 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Pt-193 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Pt-193m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Pt-195m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Pt-197 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Pt-197m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Pu-236 Plutonium (94) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Pu-237 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Pu-238 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Pu-239 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Pu-240 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Pu-241 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Pu-242 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Pu-244 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Ra-223 (b) Radium (88) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Ra-224 (b) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Ra-225 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Ra-226 (b) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Ra-228 (b) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Rb-81 Rubidium (37) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Rb-83 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Rb-84 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Rb-86 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Rb-87 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Rb(nat) 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Re-184 Rhenium (75) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Re-184m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Re-186 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Re-187 1.0 × 10 6 2.7 × 10 −5 1.0 × 10 9 2.7 × 10 −2 Re-188 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Re-189 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Re(nat) 1.0 × 10 6 2.7 × 10 −5 1.0 × 10 9 2.7 × 10 −2 Rh-99 Rhodium (45) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Rh-101 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Rh-102 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Rh-102m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Rh-103m 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 8 2.7 × 10 −3 Rh-105 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Rn-222 (b) Radon (86) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 8 2.7 × 10 −3 Ru-97 Ruthenium (44) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Ru-103 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Ru-105 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Ru-106 (b) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 S-35 Sulphur (16) 1.0 × 10 5 2.7 × 10 −6 1.0 × 10 8 2.7 × 10 −3 Sb-122 Antimony (51) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 4 2.7 × 10 −7 Sb-124 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Sb-125 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Sb-126 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Sc-44 Scandium (21) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Sc-46 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Sc-47 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Sc-48 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Se-75 Selenium (34) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Se-79 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Si-31 Silicon (14) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Si-32 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Sm-145 Samarium (62) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Sm-147 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Sm-151 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 8 2.7 × 10 −3 Sm-153 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Sn-113 Tin (50) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Sn-117m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Sn-119m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Sn-121m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Sn-123 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Sn-125 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Sn-126 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Sr-82 Strontium (38) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Sr-85 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Sr-85m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Sr-87m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Sr-89 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Sr-90 (b) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 4 2.7 × 10 −7 Sr-91 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Sr-92 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 T(H-3) Tritium (1) 1.0 × 10 6 2.7 × 10 −5 1.0 × 10 9 2.7 × 10 −2 Ta-178 (long-lived) Tantalum (73) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Ta-179 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Ta-182 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Tb-157 Terbium (65) 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Tb-158 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Tb-160 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Tc-95m Technetium (43) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Tc-96 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Tc-96m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Tc-97 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 8 2.7 × 10 −3 Tc-97m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Tc-98 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Tc-99 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 Tc-99m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Te-121 Tellurium (52) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Te-121m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Te-123m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Te-125m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Te-127 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Te-127m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Te-129 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Te-129m 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Te-131m 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Te-132 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Th-227 Thorium (90) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Th-228 (b) 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Th-229 (b) 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Th-230 1.0 2.7 × 10 −11 1.0 × 10 4 2.7 × 10 −7 Th-231 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Th-232 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 Th-234 (b) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 5 2.7 × 10 −6 Th (nat) (b) 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 Ti-44 Titanium (22) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 Tl-200 Thallium (81) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Tl-201 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Tl-202 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Tl-204 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 4 2.7 × 10 −7 Tm-167 Thulium (69) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Tm-170 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Tm-171 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 8 2.7 × 10 −3 U-230 (fast lung absorption) (b),(d) Uranium (92) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 U-230 (medium lung absorption) (e) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 U-230 (slow lung absorption) (f) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 U-232 (fast lung absorption) (b),(d) 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 U-232 (medium lung absorption) (e) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 U-232 (slow lung absorption) (f) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 U-233 (fast lung absorption) (d) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 U-233 (medium lung absorption) (e) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 U-233 (slow lung absorption) (f) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 U-234 (fast lung absorption) (d) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 U-234 (medium lung absorption) (e) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 U-234 (slow lung absorption) (f) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 U-235 (all lung absorption types) (b),(d),(e),(f) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 U-236 (fast lung absorption) (d) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 U-236 (medium lung absorption) (e) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 U-236 (slow lung absorption) (f) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 U-238 (all lung absorption types) (b),(d),(e),(f) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 4 2.7 × 10 −7 U (nat) (b) 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 U (enriched to 20% or less)(g) 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 U (dep) 1.0 2.7 × 10 −11 1.0 × 10 3 2.7 × 10 −8 V-48 Vanadium (23) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 V-49 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 W-178 Tungsten (74) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 W-181 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 W-185 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 7 2.7 × 10 −4 W-187 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 W-188 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Xe-122 Xenon (54) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 9 2.7 × 10 −2 Xe-123 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 9 2.7 × 10 −2 Xe-127 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 5 2.7 × 10 −6 Xe-131m 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 4 2.7 × 10 −7 Xe-133 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 4 2.7 × 10 −7 Xe-135 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 10 2.7 × 10 −1 Y-87 Yttrium (39) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Y-88 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Y-90 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 5 2.7 × 10 −6 Y-91 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 6 2.7 × 10 −5 Y-91m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Y-92 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Y-93 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 5 2.7 × 10 −6 Yb-169 Ytterbium (70) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 7 2.7 × 10 −4 Yb-175 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Zn-65 Zinc (30) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Zn-69 1.0 × 10 4 2.7 × 10 −7 1.0 × 10 6 2.7 × 10 −5 Zn-69m 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Zr-88 Zirconium (40) 1.0 × 10 2 2.7 × 10 −9 1.0 × 10 6 2.7 × 10 −5 Zr-93 (b) 1.0 × 10 3 2.7 × 10 −8 1.0 × 10 7 2.7 × 10 −4 Zr-95 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 6 2.7 × 10 −5 Zr-97 (b) 1.0 × 10 1 2.7 × 10 −10 1.0 × 10 5 2.7 × 10 −6 a [Reserved] b Parent nuclides and their progeny included in secular equilibrium are listed as follows: Sr-90 Y-90 Zr-93 Nb-93m Zr-97 Nb-97 Ru-106 Rh-106 Ag-108m Ag-108 Cs-137 Ba-137m Ce-144 Pr-144 Ba-140 La-140 Bi-212 Tl-208 (0.36), Po-212 (0.64) Pb-210 Bi-210, Po-210 Pb-212 Bi-212, Tl-208 (0.36), Po-212 (0.64) Rn-222 Po-218, Pb-214, Bi-214, Po-214 Ra-223 Rn-219, Po-215, Pb-211, Bi-211, Tl-207 Ra-224 Rn-220, Po-216, Pb-212, Bi-212, Tl-208 (0.36), Po-212 (0.64), Ra-226 Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210 Ra-228 Ac-228 Th-228 Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 (0.36), Po-212 (0.64) Th-229 Ra-225, Ac-225, Fr-221, At-217, Bi-213, Po-213, Pb-209 Th-nat Ra-228, Ac-228, Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 (0.36), Po-212 (0.64) 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 (0.36), Po-212 (0.64) U-235 Th-231 U-238 Th-234, Pa-234m U-nat Th-234, Pa-234m, U-234, Th-230, Ra-226, Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210 Np-237 Pa-233 Am-242m Am-242 Am-243 Np-239 c [Reserved] d These values apply only to compounds of uranium that take the chemical form of UF 6 , UO 2 F 2 and UO 2 (NO 3 ) 2 in both normal and accident conditions of transport. e These values apply only to compounds of uranium that take the chemical form of UO 3 , UF 4 , UCl 4 and hexavalent compounds in both normal and accident conditions of transport. f These values apply to all compounds of uranium other than those specified in notes (d) and (e) of this table. g These values apply to unirradiated uranium only. [69 FR 3685, Jan. 26, 2004, as amended at 79 FR 40615, July 11, 2014; 80 FR 72928, Nov. 23, 2015]