49 CFR 173.436 – 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 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Ac-227		1.0 × 10?1	2.7 × 10?12	1.0 × 10³	2.7 × 10?8
Ac-228		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Ag-105	Silver (47)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ag-108m (b)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Ag-110m		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Ag-111		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Al-26	Aluminum (13)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Am-241	Americium (95)	1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Am-242m (b)		1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Am-243 (b)		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Ar-37	Argon (18)	1.0 × 10⁶	2.7 × 10?5	1.0 × 10⁸	2.7 × 10?3
Ar-39		1.0 × 10⁷	2.7 × 10?4	1.0 × 10⁴	2.7 × 10?7
Ar-41		1.0 × 10²	2.7 × 10?9	1.0 × 10⁹	2.7 × 10?2
As-72	Arsenic (33)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
As-73		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
As-74		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
As-76		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
As-77		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
At-211	Astatine (85)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Au-193	Gold (79)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Au-194		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Au-195		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Au-198		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Au-199		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ba-131	Barium (56)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ba-133		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ba-133m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ba-140 (b)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Be-7	Beryllium (4)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Be-10		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁶	2.7 × 10?5
Bi-205	Bismuth (83)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Bi-206		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Bi-207		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Bi-210		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Bi-210m		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Bi-212 (b)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Bk-247	Berkelium (97)	1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Bk-249		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Br-76	Bromine (35)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Br-77		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Br-82		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
C-11	Carbon (6)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
C-14		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Ca-41	Calcium (20)	1.0 × 10⁵	2.7 × 10?6	1.0 × 10⁷	2.7 × 10?4
Ca-45		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Ca-47		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Cd-109	Cadmium (48)	1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁶	2.7 × 10?5
Cd-113m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Cd-115		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Cd-115m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Ce-139	Cerium (58)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ce-141		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Ce-143		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ce-144 (b)		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Cf-248	Californium (98)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Cf-249		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Cf-250		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Cf-251		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Cf-252		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Cf-253		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Cf-254		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Cl-36	Chlorine (17)	1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁶	2.7 × 10?5
Cl-38		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Cm-240	Curium (96)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Cm-241		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Cm-242		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Cm-243		1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Cm-244		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Cm-245		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Cm-246		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Cm-247		1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Cm-248		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Co-55	Cobalt (27)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Co-56		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Co-57		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Co-58		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Co-58m		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Co-60		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Cr-51	Chromium (24)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Cs-129	Cesium (55)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Cs-131		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Cs-132		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Cs-134		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Cs-134m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁵	2.7 × 10?6
Cs-135		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Cs-136		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Cs-137 (b)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Cu-64	Copper (29)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Cu-67		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Dy-159	Dysprosium (66)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Dy-165		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Dy-166		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Er-169	Erbium (68)	1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Er-171		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Eu-147	Europium (63)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Eu-148		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Eu-149		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Eu-150 (short lived)		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Eu-150 (long lived)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Eu-152		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Eu-152m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Eu-154		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Eu-155		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Eu-156		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
F-18	Fluorine (9)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Fe-52	Iron (26)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Fe-55		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁶	2.7 × 10?5
Fe-59		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Fe-60		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Ga-67	Gallium (31)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ga-68		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Ga-72		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Gd-146	Gadolinium (64)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Gd-148		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Gd-153		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Gd-159		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Ge-68	Germanium (32)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Ge-71		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁸	2.7 × 10?3
Ge-77		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Hf-172	Hafnium (72)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Hf-175		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Hf-181		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Hf-182		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Hg-194	Mercury (80)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Hg-195m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Hg-197		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Hg-197m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Hg-203		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Ho-166	Holmium (67)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁵	2.7 × 10?6
Ho-166m		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
I-123	Iodine (53)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
I-124		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
I-125		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
I-126		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
I-129		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
I-131		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
I-132		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
I-133		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
I-134		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
I-135		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
In-111	Indium (49)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
In-113m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
In-114m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
In-115m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ir-189	Iridium (77)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Ir-190		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Ir-192		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Ir-194		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
K-40	Potassium (19)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
K-42		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
K-43		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	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 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Kr-85		1.0 × 10⁵	2.7 × 10?6	1.0 × 10⁴	2.7 × 10?7
Kr-85m		1.0 × 10³	2.7 × 10?8	1.0 × 10¹⁰	2.7 × 10?1
Kr-87		1.0 × 10²	2.7 × 10?9	1.0 × 10⁹	2.7 × 10?2
La-137	Lanthanum (57)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
La-140		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Lu-172	Lutetium (71)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Lu-173		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Lu-174		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Lu-174m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Lu-177		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Mg-28	Magnesium (12)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Mn-52	Manganese (25)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Mn-53		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁹	2.7 × 10?2
Mn-54		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Mn-56		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Mo-93	Molybdenum (42)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁸	2.7 × 10?3
Mo-99		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
N-13	Nitrogen (7)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁹	2.7 × 10?2
Na-22	Sodium (11)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Na-24		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Nb-93m	Niobium (41)	1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Nb-94		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Nb-95		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Nb-97		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Nd-147	Neodymium (60)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Nd-149		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ni-59	Nickel (28)	1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁸	2.7 × 10?3
Ni-63		1.0 × 10⁵	2.7 × 10?6	1.0 × 10⁸	2.7 × 10?3
Ni-65		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Np-235	Neptunium (93)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Np-236 (short-lived)		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Np-236 (long-lived)		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Np-237 (b)		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Np-239		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Os-185	Osmium (76)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Os-191		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Os-191m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Os-193		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Os-194		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
P-32	Phosphorus (15)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁵	2.7 × 10?6
P-33		1.0 × 10⁵	2.7 × 10?6	1.0 × 10⁸	2.7 × 10?3
Pa-230	Protactinium (91)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Pa-231		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Pa-233		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Pb-201	Lead (82)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Pb-202		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Pb-203		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Pb-205		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Pb-210 (b)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Pb-212 (b)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Pd-103	Palladium (46)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁸	2.7 × 10?3
Pd-107		1.0 × 10⁵	2.7 × 10?6	1.0 × 10⁸	2.7 × 10?3
Pd-109		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Pm-143	Promethium (61)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Pm-144		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Pm-145		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Pm-147		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Pm-148m		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Pm-149		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Pm-151		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Po-210	Polonium (84)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Pr-142	Praseodymium (59)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Pr-143		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁶	2.7 × 10?5
Pt-188	Platinum (78)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Pt-191		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Pt-193		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Pt-193m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Pt-195m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Pt-197		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Pt-197m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Pu-236	Plutonium (94)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Pu-237		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Pu-238		1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Pu-239		1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Pu-240		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Pu-241		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Pu-242		1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Pu-244		1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Ra-223 (b)	Radium (88)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Ra-224 (b)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Ra-225		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Ra-226 (b)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Ra-228 (b)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Rb-81	Rubidium (37)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Rb-83		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Rb-84		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Rb-86		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Rb-87		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Rb(nat)		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Re-184	Rhenium (75)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Re-184m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Re-186		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Re-187		1.0 × 10⁶	2.7 × 10?5	1.0 × 10⁹	2.7 × 10?2
Re-188		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Re-189		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Re(nat)		1.0 × 10⁶	2.7 × 10?5	1.0 × 10⁹	2.7 × 10?2
Rh-99	Rhodium (45)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Rh-101		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Rh-102		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Rh-102m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Rh-103m		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁸	2.7 × 10?3
Rh-105		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Rn-222 (b)	Radon (86)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁸	2.7 × 10?3
Ru-97	Ruthenium (44)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Ru-103		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Ru-105		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Ru-106 (b)		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
S-35	Sulphur (16)	1.0 × 10⁵	2.7 × 10?6	1.0 × 10⁸	2.7 × 10?3
Sb-122	Antimony (51)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁴	2.7 × 10?7
Sb-124		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Sb-125		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Sb-126		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Sc-44	Scandium (21)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Sc-46		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Sc-47		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Sc-48		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Se-75	Selenium (34)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Se-79		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Si-31	Silicon (14)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Si-32		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Sm-145	Samarium (62)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Sm-147		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Sm-151		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁸	2.7 × 10?3
Sm-153		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Sn-113	Tin (50)	1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Sn-117m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Sn-119m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Sn-121m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Sn-123		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Sn-125		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Sn-126		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Sr-82	Strontium (38)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Sr-85		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Sr-85m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Sr-87m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Sr-89		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Sr-90 (b)		1.0 × 10²	2.7 × 10?9	1.0 × 10⁴	2.7 × 10?7
Sr-91		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Sr-92		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
T(H-3)	Tritium (1)	1.0 × 10⁶	2.7 × 10?5	1.0 × 10⁹	2.7 × 10?2
Ta-178 (long-lived)	Tantalum (73)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Ta-179		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Ta-182		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Tb-157	Terbium (65)	1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Tb-158		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Tb-160		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Tc-95m	Technetium (43)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Tc-96		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Tc-96m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Tc-97		1.0 × 10³	2.7 × 10?8	1.0 × 10⁸	2.7 × 10?3
Tc-97m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Tc-98		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Tc-99		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
Tc-99m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Te-121	Tellurium (52)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	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 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Te-125m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Te-127		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Te-127m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Te-129		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Te-129m		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Te-131m		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Te-132		1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Th-227	Thorium (90)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Th-228 (b)		1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Th-229 (b)		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Th-230		1.0	2.7 × 10?11	1.0 × 10⁴	2.7 × 10?7
Th-231		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Th-232		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
Th-234 (b)		1.0 × 10³	2.7 × 10?8	1.0 × 10⁵	2.7 × 10?6
Th (nat) (b)		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
Ti-44	Titanium (22)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
Tl-200	Thallium (81)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Tl-201		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Tl-202		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Tl-204		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁴	2.7 × 10?7
Tm-167	Thulium (69)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Tm-170		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Tm-171		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁸	2.7 × 10?3
U-230 (fast lung absorption) (b),(d)	Uranium (92)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
U-230 (medium lung absorption) (e)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
U-230 (slow lung absorption) (f)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
U-232 (fast lung absorption) (b),(d)		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
U-232 (medium lung absorption) (e)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
U-232 (slow lung absorption) (f)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
U-233 (fast lung absorption) (d)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
U-233 (medium lung absorption) (e)		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
U-233 (slow lung absorption) (f)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
U-234 (fast lung absorption) (d)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
U-234 (medium lung absorption) (e)		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
U-234 (slow lung absorption) (f)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
U-235 (all lung absorption types) (b),(d),(e),(f)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
U-236 (fast lung absorption) (d)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
U-236 (medium lung absorption) (e)		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
U-236 (slow lung absorption) (f)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
U-238 (all lung absorption types) (b),(d),(e),(f)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁴	2.7 × 10?7
U (nat) (b)		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
U (enriched to 20% or less)(g)		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
U (dep)		1.0	2.7 × 10?11	1.0 × 10³	2.7 × 10?8
V-48	Vanadium (23)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	2.7 × 10?6
V-49		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
W-178	Tungsten (74)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
W-181		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
W-185		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁷	2.7 × 10?4
W-187		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
W-188		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Xe-122	Xenon (54)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁹	2.7 × 10?2
Xe-123		1.0 × 10²	2.7 × 10?9	1.0 × 10⁹	2.7 × 10?2
Xe-127		1.0 × 10³	2.7 × 10?8	1.0 × 10⁵	2.7 × 10?6
Xe-131m		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁴	2.7 × 10?7
Xe-133		1.0 × 10³	2.7 × 10?8	1.0 × 10⁴	2.7 × 10?7
Xe-135		1.0 × 10³	2.7 × 10?8	1.0 × 10¹⁰	2.7 × 10?1
Y-87	Yttrium (39)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Y-88		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Y-90		1.0 × 10³	2.7 × 10?8	1.0 × 10⁵	2.7 × 10?6
Y-91		1.0 × 10³	2.7 × 10?8	1.0 × 10⁶	2.7 × 10?5
Y-91m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Y-92		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Y-93		1.0 × 10²	2.7 × 10?9	1.0 × 10⁵	2.7 × 10?6
Yb-169	Ytterbium (70)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁷	2.7 × 10?4
Yb-175		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Zn-65	Zinc (30)	1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Zn-69		1.0 × 10⁴	2.7 × 10?7	1.0 × 10⁶	2.7 × 10?5
Zn-69m		1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Zr-88	Zirconium (40)	1.0 × 10²	2.7 × 10?9	1.0 × 10⁶	2.7 × 10?5
Zr-93 (b)		1.0 × 10³	2.7 × 10?8	1.0 × 10⁷	2.7 × 10?4
Zr-95		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁶	2.7 × 10?5
Zr-97 (b)		1.0 × 10¹	2.7 × 10?10	1.0 × 10⁵	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 UF6, UO2F2 and UO2(NO3)2 in both normal and accident conditions of transport.

^e These values apply only to compounds of uranium that take the chemical form of UO3, UF4, UCl4 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]

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