49 CFR § 173.436 Exempt material activity concentrations and exempt consignment activity limits for radionuclides | Code of Federal Regulations | US Law

49 CFR § 173.436

Exempt material activity concentrations and exempt consignment activity limits for radionuclides

November 18, 2020

CFR

The Table of Exempt material activity concentrations and exempt consignment activity limits for radionuclides is as follows:

Open Table

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 × 10³	2.7 × 10−8	1.0 × 10⁵	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 × 10²	2.7 × 10−9	1.0 × 10⁶	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]

^bParent 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]

^dThese 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.

^eThese 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.

^fThese values apply to all compounds of uranium other than those specified in notes (d) and (e) of this table.

^gThese 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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