10 C.F.R. § 71 app A to Part 71

Current through September 30, 2024

Appendix A to Part 71 - Determination of A[1] and A[2]

I. Values of A₁ and A₂ for individual radionuclides, which are the bases for many activity limits elsewhere in these regulations, are given in Table A-1. The curie (Ci) values specified are obtained by converting from the Terabecquerel (TBq) value. The Terabecquerel values are the regulatory standard. The curie values are for information only and are not intended to be the regulatory standard. Where values of A₁ and A₂ are unlimited, it is for radiation control purposes only. For nuclear criticality safety, some materials are subject to controls placed on fissile material.

II.

a. For individual radionuclides whose identities are known, but which are not listed in Table A-1, the A₁ and A₂ values contained in Table A-3 may be used. Otherwise, the licensee shall obtain prior Commission approval of the A₁ and A₂ values for radionuclides not listed in Table A-1, before shipping the material.

b. For individual radionuclides whose identities are known, but which are not listed in Table A-2, the exempt material activity concentration and exempt consignment activity values contained in Table A-3 may be used. Otherwise, the licensee shall obtain prior Commission approval of the exempt material activity concentration and exempt consignment activity values for radionuclides not listed in Table A-2, before shipping the material.

c. The licensee shall submit requests for prior approval, described under paragraphs II.a. and II.b. of this Appendix, to the Commission, in accordance with § 71.1 of this part.

III. In the calculations of A₁ and A₂ for a radionuclide not in Table A-1, a single radioactive decay chain, in which radionuclides are present in their naturally occurring proportions, and in which no daughter radionuclide has a half-life either longer than 10 days, or longer than that of the parent radionuclide, shall be considered as a single radionuclide, and the activity to be taken into account, and the A₁ and A₂ value to be applied, shall be those corresponding to the parent radionuclide of that chain. In the case of radioactive decay chains in which any daughter radionuclide has a half-life either longer than 10 days, or greater than that of the parent radionuclide, the parent and those daughter radionuclides shall be considered as mixtures of different radionuclides.

IV. For mixtures of radionuclides whose identities and respective activities are known, the following conditions apply:

a. For special form radioactive material, the maximum quantity transported in a Type A package is as follows:

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where B(i) is the activity of radionuclide i in special form, and A₁(i) is the A₁ value for radionuclide i.

b. For normal form radioactive material, the maximum quantity transported in a Type A package is as follows:

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where B(i) is the activity of radionuclide i in normal form, and A₂(i) is the A₂ value for radionuclide i.

c. If the package contains both special and normal form radioactive material, the activity that may be transported in a Type A package is as follows:

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where B(i) is the activity of radionuclide i as special form radioactive material, A₁(i) is the A₁ value for radionuclide i, C(j) is the activity of radionuclide j as normal form radioactive material, and A₂(j) is the A₂ value for radionuclide j.

d. Alternatively, the A₁ value for mixtures of special form material may be determined as follows:

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where f(i) is the fraction of activity for radionuclide i in the mixture and A₁(i) is the appropriate A₁ value for radionuclide i.

e. Alternatively, the A₂ value for mixtures of normal form material may be determined as follows:

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where f(i) is the fraction of activity for radionuclide i in the mixture and A₂(i) is the appropriate A₂ value for radionuclide i.

f. The exempt activity concentration for mixtures of nuclides may be determined as follows:

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where f(i) is the fraction of activity concentration of radionuclide i in the mixture and [A](i) is the activity concentration for exempt material containing radionuclide i.

g. The activity limit for an exempt consignment for mixtures of radionuclides may be determined as follows:

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where f(i) is the fraction of activity of radionuclide i in the mixture and A(i) is the activity limit for exempt consignments for radionuclide i.

V.

a. When the identity of each radionuclide is known, but the individual activities of some of the radionuclides are not known, the radionuclides may be grouped, and the lowest A₁ or A₂ value, as appropriate, for the radionuclides in each group may be used in applying the formulas in paragraph IV. Groups may be based on the total alpha activity and the total beta/gamma activity when these are known, using the lowest A₁ or A₂ values for the alpha emitters and beta/gamma emitters.

b. When the identity of each radionuclide is known but the individual activities of some of the radionuclides are not known, the radionuclides may be grouped and the lowest [A] (activity concentration for exempt material) or A (activity limit for exempt consignment) value, as appropriate, for the radionuclides in each group may be used in applying the formulas in paragraph IV of this appendix. Groups may be based on the total alpha activity and the total beta/gamma activity when these are known, using the lowest [A] or A values for the alpha emitters and beta/gamma emitters, respectively.

Table A-1-A₁ and A₂ Values For Radionuclides

Symbol of radionuclide	Element and atomic number	A1 (TBq)	A1 (Ci)b	A2 (TBq)	A2 (Ci)b	Specific activity
						(TBq/g)	(Ci/g)
Ac-225 (a)	Actinium (89)	8.0 * 10-1	2.2 * 101	6.0 * 10-3	1.6 * 10-1	2.1 * 103	5.8 * 104
Ac-227 (a)		9.0 * 10-1	2.4 * 101	9.0 * 10-5	2.4 * 10-3	2.7	7.2 * 101
Ac-228		6.0 * 10-1	1.6 * 101	5.0 * 10-1	1.4 * 101	8.4 * 104	2.2 * 106
Ag-105	Silver (47)	2.0	5.4 * 101	2.0	5.4 * 101	1.1 * 103	3.0 * 104
Ag-108m (a)		7.0 * 10-1	1.9 * 101	7.0 * 10-1	1.9 * 101	9.7 * 10-1	2.6 * 101
Ag-110m (a)		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	1.8 * 102	4.7 * 103
Ag-111		2.0	5.4 * 101	6.0 * 10-1	1.6 * 101	5.8 * 103	1.6 * 105
Al-26	Aluminum (13)	1.0 * 10-1	2.7	1.0 * 10-1	2.7	7.0 * 10-4	1.9 * 10-2
Am-241	Americium (95)	1.0 * 101	2.7 * 102	1.0 * 10-3	2.7 * 10-2	1.3 * 10-1	3.4
Am-242m (a)		1.0 * 101	2.7 * 102	1.0 * 10-3	2.7 * 10-2	3.6 * 10-1	1.0 * 101
Am-243 (a)		5.0	1.4 * 102	1.0 * 10-3	2.7 * 10-2	7.4 * 10-3	2.0 * 10-1
Ar-37	Argon (18)	4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	3.7 * 103	9.9 * 104
Ar-39		4.0 * 101	1.1 * 103	2.0 * 101	5.4 * 102	1.3	3.4 * 101
Ar-41		3.0 * 10-1	8.1	3.0 * 10-1	8.1	1.5 * 106	4.2 * 107
As-72	Arsenic (33)	3.0 * 10-1	8.1	3.0 * 10-1	8.1	6.2 * 104	1.7 * 106
As-73		4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	8.2 * 102	2.2 * 104
As-74		1.0	2.7 * 101	9.0 * 10-1	2.4 * 101	3.7 * 103	9.9 * 104
As-76		3.0 * 10-1	8.1	3.0 * 10-1	8.1	5.8 * 104	1.6 * 106
As-77		2.0 * 101	5.4 * 102	7.0 * 10-1	1.9 * 101	3.9 * 104	1.0 * 106
At-211 (a)	Astatine (85)	2.0 * 101	5.4 * 102	5.0 * 10-1	1.4 * 101	7.6 * 104	2.1 * 106
Au-193	Gold (79)	7.0	1.9 * 102	2.0	5.4 * 101	3.4 * 104	9.2 * 105
Au-194		1.0	2.7 * 101	1.0	2.7 * 101	1.5 * 104	4.1 * 105
Au-195		1.0 * 101	2.7 * 102	6.0	1.6 * 102	1.4 * 102	3.7 * 103
Au-198		1.0	2.7 * 101	6.0 * 10-1	1.6 * 101	9.0 * 103	2.4 * 105
Au-199		1.0 * 101	2.7 * 102	6.0 * 10-1	1.6 * 101	7.7 * 103	2.1 * 105
Ba-131 (a)	Barium (56)	2.0	5.4 * 101	2.0	5.4 * 101	3.1 * 103	8.4 * 104
Ba-133		3.0	8.1 * 101	3.0	8.1 * 101	9.4	2.6 * 102
Ba-133m		2.0 * 101	5.4 * 102	6.0 * 10-1	1.6 * 101	2.2 * 104	6.1 * 105
Ba-140 (a)		5.0 * 10-1	1.4 * 101	3.0 * 10-1	8.1	2.7 * 103	7.3 * 104
Be-7	Beryllium (4)	2.0 * 101	5.4 * 102	2.0 * 101	5.4 * 102	1.3 * 104	3.5 * 105
Be-10		4.0 * 101	1.1 * 103	6.0 * 10-1	1.6 * 101	8.3 * 10-4	2.2 * 10-2
Bi-205	Bismuth (83)	7.0 * 10-1	1.9 * 101	7.0 * 10-1	1.9 * 101	1.5 * 103	4.2 * 104
Bi-206		3.0 * 10-1	8.1	3.0 * 10-1	8.1	3.8 * 103	1.0 * 105
Bi-207		7.0 * 10-1	1.9 * 101	7.0 * 10-1	1.9 * 101	1.9	5.2 * 101
Bi-210		1.0	2.7 * 101	6.0 * 10-1	1.6 * 101	4.6 * 103	1.2 * 105
Bi-210m (a)		6.0 * 10-1	1.6 * 101	2.0 * 10-2	5.4 * 10-1	2.1 * 10-5	5.7 * 10-4
Bi-212 (a)		7.0 * 10-1	1.9 * 101	6.0 * 10-1	1.6 * 101	5.4 * 105	1.5 * 107
Bk-247	Berkelium (97)	8.0	2.2 * 102	8.0 * 10-4	2.2 * 10-2	3.8 * 10-2	1.0
Bk-249 (a)		4.0 * 101	1.1 * 103	3.0 * 10-1	8.1	6.1 * 101	1.6 * 103
Br-76	Bromine (35)	4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	9.4 * 104	2.5 * 106
Br-77		3.0	8.1 * 101	3.0	8.1 * 101	2.6 * 104	7.1 * 105
Br-82		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	4.0 * 104	1.1 * 106
C-11	Carbon (6)	1.0	2.7 * 101	6.0 * 10-1	1.6 * 101	3.1 * 107	8.4 * 108
C-14		4.0 * 101	1.1 * 103	3.0	8.1 * 101	1.6 * 10-1	4.5
Ca-41	Calcium (20)	Unlimited	Unlimited	Unlimited	Unlimited	3.1 * 10-3	8.5 * 10-2
Ca-45		4.0 * 101	1.1 * 103	1.0	2.7 * 101	6.6 * 102	1.8 * 104
Ca-47 (a)		3.0	8.1 * 101	3.0 * 10-1	8.1	2.3 * 104	6.1 * 105
Cd-109	Cadmium (48)	3.0 * 101	8.1 * 102	2.0	5.4 * 101	9.6 * 101	2.6 * 103
Cd-113m		4.0 * 101	1.1 * 103	5.0 * 10-1	1.4 * 101	8.3	2.2 * 102
Cd-115 (a)		3.0	8.1 * 101	4.0 * 10-1	1.1 * 101	1.9 * 104	5.1 * 105
Cd-115m		5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	9.4 * 102	2.5 * 104
Ce-139	Cerium (58)	7.0	1.9 * 102	2.0	5.4 * 101	2.5 * 102	6.8 * 103
Ce-141		2.0 * 101	5.4 * 102	6.0 * 10-1	1.6 * 101	1.1 * 103	2.8 * 104
Ce-143		9.0 * 10-1	2.4 * 101	6.0 * 10-1	1.6 * 101	2.5 * 104	6.6 * 105
Ce-144 (a)		2.0 * 10-1	5.4	2.0 * 10-1	5.4	1.2 * 102	3.2 * 103
Cf-248	Californium (98)	4.0 * 101	1.1 * 103	6.0 * 10-3	1.6 * 10-1	5.8 * 101	1.6 * 103
Cf-249		3.0	8.1 * 101	8.0 * 10-4	2.2 * 10-2	1.5 * 10-1	4.1
Cf-250		2.0 * 101	5.4 * 102	2.0 * 10-3	5.4 * 10-2	4.0	1.1 * 102
Cf-251		7.0	1.9 * 102	7.0 * 10-4	1.9 * 10-2	5.9 * 10-2	1.6
Cf-252		1.0 * 10-1	2.7	3.0 * 10-3	8.1 * 10-2	2.0 * 101	5.4 * 102
Cf-253 (a)		4.0 * 101	1.1 * 103	4.0 * 10-2	1.1	1.1 * 103	2.9 * 104
Cf-254		1.0 * 10-3	2.7 * 10-2	1.0 * 10-3	2.7 * 10-2	3.1 * 102	8.5 * 103
Cl-36	Chlorine (17)	1.0 * 101	2.7 * 102	6.0 * 10-1	1.6 * 101	1.2 * 10-3	3.3 * 10-2
Cl-38		2.0 * 10-1	5.4	2.0 * 10-1	5.4	4.9 * 106	1.3 * 108
Cm-240	Curium (96)	4.0 * 101	1.1 * 103	2.0 * 10-2	5.4 * 10-1	7.5 * 102	2.0 * 104
Cm-241		2.0	5.4 * 101	1.0	2.7 * 101	6.1 * 102	1.7 * 104
Cm-242		4.0 * 101	1.1 * 103	1.0 * 10-2	2.7 * 10-1	1.2 * 102	3.3 * 103
Cm-243		9.0	2.4 * 102	1.0 * 10-3	2.7 * 10-2	1.9 * 10-3	5.2 * 101
Cm-244		2.0 * 101	5.4 * 102	2.0 * 10-3	5.4 * 10-2	3.0	8.1 * 101
Cm-245		9.0	2.4 * 102	9.0 * 10-4	2.4 * 10-2	6.4 * 10-3	1.7 * 10-1
Cm-246		9.0	2.4 * 102	9.0 * 10-4	2.4 * 10-2	1.1 * 10-2	3.1 * 10-1
Cm-247 (a)		3.0	8.1 * 101	1.0 * 10-3	2.7 * 10-2	3.4 * 10-6	9.3 * 10-5
Cm-248		2.0 * 10-2	5.4 * 10-1	3.0 * 10-4	8.1 * 10-3	1.6 * 10-4	4.2 * 10-3
Co-55	Cobalt (27)	5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	1.1 * 105	3.1 * 106
Co-56		3.0 * 10-1	8.1	3.0 * 10-1	8.1	1.1 * 103	3.0 * 104
Co-57		1.0 * 101	2.7 * 102	1.0 * 101	2.7 * 102	3.1 * 102	8.4 * 103
Co-58		1.0	2.7 * 101	1.0	2.7 * 101	1.2 * 103	3.2 * 104
Co-58m		4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	2.2 * 105	5.9 * 106
Co-60		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	4.2 * 101	1.1 * 103
Cr-51	Chromium (24)	3.0 * 101	8.1 * 102	3.0 * 101	8.1 * 102	3.4 * 103	9.2 * 104
Cs-129	Cesium (55)	4.0	1.1 * 102	4.0	1.1 * 102	2.8 * 104	7.6 * 105
Cs-131		3.0 * 101	8.1 * 102	3.0 * 101	8.1 * 102	3.8 * 103	1.0 * 105
Cs-132		1.0	2.7 * 101	1.0	2.7 * 101	5.7 * 103	1.5 * 105
Cs-134		7.0 * 10-1	1.9 * 101	7.0 * 10-1	1.9 * 101	4.8 * 101	1.3 * 103
Cs-134m		4.0 * 101	1.1 * 103	6.0 * 10-1	1.6 * 101	3.0 * 105	8.0 * 106
Cs-135		4.0 * 101	1.1 * 103	1.0	2.7 * 101	4.3 * 10-5	1.2 * 10-3
Cs-136		5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	2.7 * 103	7.3 * 104
Cs-137 (a)		2.0	5.4 * 101	6.0 * 10-1	1.6 * 101	3.2	8.7 * 101
Cu-64	Copper (29)	6.0	1.6 * 102	1.0	2.7 * 101	1.4 * 105	3.9 * 106
Cu-67		1.0 * 101	2.7 * 102	7.0 * 10-1	1.9 * 101	2.8 * 104	7.6 * 105
Dy-159	Dysprosium (66)	2.0 * 101	5.4 * 102	2.0 * 101	5.4 * 102	2.1 * 102	5.7 * 103
Dy-165		9.0 * 10-1	2.4 * 101	6.0 * 10-1	1.6 * 101	3.0 * 105	8.2 * 106
Dy-166 (a)		9.0 * 10-1	2.4 * 101	3.0 * 10-1	8.1	8.6 * 103	2.3 * 105
Er-169	Erbium (68)	4.0 * 101	1.1 * 103	1.0	2.7 * 101	3.1 * 103	8.3 * 104
Er-171		8.0 * 10-1	2.2 * 101	5.0 * 10-1	1.4 * 101	9.0 * 104	2.4 * 106
Eu-147	Europium (63)	2.0	5.4 * 101	2.0	5.4 * 101	1.4 * 103	3.7 * 104
Eu-148		5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	6.0 * 102	1.6 * 104
Eu-149		2.0 * 101	5.4 * 102	2.0 * 101	5.4 * 102	3.5 * 102	9.4 * 103
Eu-150 (short lived)		2.0	5.4 * 101	7.0 * 10-1	1.9 * 101	6.1 * 104	1.6 * 106
Eu-150 (long lived)		7.0 * 10-1	1.9 * 101	7.0 * 10-1	1.9 * 101	6.1 * 104	1.6 * 106
Eu-152		1.0	2.7 * 101	1.0	2.7 * 101	6.5	1.8 * 102
Eu-152m		8.0 * 10-1	2.2 * 101	8.0 * 10-1	2.2 * 101	8.2 * 104	2.2 * 106
Eu-154		9.0 * 10-1	2.4 * 101	6.0 * 10-1	1.6 * 101	9.8	2.6 * 102
Eu-155		2.0 * 101	5.4 * 102	3.0	8.1 * 101	1.8 * 101	4.9 * 102
Eu-156		7.0 * 10-1	1.9 * 101	7.0 * 10-1	1.9 * 101	2.0 * 103	5.5 * 104
F-18	Fluorine (9)	1.0	2.7 * 101	6.0 * 10-1	1.6 * 101	3.5 * 106	9.5 * 107
Fe-52 (a)	Iron (26)	3.0 * 10-1	8.1	3.0 * 10-1	8.1	2.7 * 105	7.3 * 106
Fe-55		4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	8.8 * 101	2.4 * 103
Fe-59		9.0 * 10-1	2.4 * 101	9.0 * 10-1	2.4 * 101	1.8 * 103	5.0 * 104
Fe-60 (a)		4.0 * 101	1.1 * 103	2.0 * 10-1	5.4	7.4 * 10-4	2.0 * 10-2
Ga-67	Gallium (31)	7.0	1.9 * 102	3.0	8.1 * 101	2.2 * 104	6.0 * 105
Ga-68		5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	1.5 * 106	4.1 * 107
Ga-72		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	1.1 * 105	3.1 * 106
Gd-146 (a)	Gadolinium (64)	5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	6.9 * 102	1.9 * 104
Gd-148		2.0 * 101	5.4 * 102	2.0 * 10-3	5.4 * 10-2	1.2	3.2 * 101
Gd-153		1.0 * 101	2.7 * 102	9.0	2.4 * 102	1.3 * 102	3.5 * 103
Gd-159		3.0	8.1 * 101	6.0 * 10-1	1.6 * 101	3.9 * 104	1.1 * 106
Ge-68 (a)	Germanium (32)	5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	2.6 * 102	7.1 * 103
Ge-71		4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	5.8 * 103	1.6 * 105
Ge-77		3.0 * 10-1	8.1	3.0 * 10-1	8.1	1.3 * 105	3.6 * 106
Hf-172 (a)	Hafnium (72)	6.0 * 10-1	1.6 * 101	6.0 * 10-1	1.6 * 101	4.1 * 101	1.1 * 103
Hf-175		3.0	8.1 * 101	3.0	8.1 * 101	3.9 * 102	1.1 * 104
Hf-181		2.0	5.4 * 101	5.0 * 10-1	1.4 * 101	6.3 * 102	1.7 * 104
Hf-182		Unlimited	Unlimited	Unlimited	Unlimited	8.1 * 10-6	2.2 * 10-4
Hg-194 (a)	Mercury (80)	1.0	2.7 * 101	1.0	2.7 * 101	1.3 * 10-1	3.5
Hg-195m (a)		3.0	8.1 * 101	7.0 * 10-1	1.9 * 101	1.5 * 104	4.0 * 105
Hg-197		2.0 * 101	5.4 * 102	1.0 * 101	2.7 * 102	9.2 * 103	2.5 * 105
Hg-197m		1.0 * 101	2.7 * 102	4.0 * 10-1	1.1 * 101	2.5 * 104	6.7 * 105
Hg-203		5.0	1.4 * 102	1.0	2.7 * 101	5.1 * 102	1.4 * 104
Ho-166	Holmium (67)	4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	2.6 * 104	7.0 * 105
Ho-166m		6.0 * 10-1	1.6 * 101	5.0 * 10-1	1.4 * 101	6.6 * 10-2	1.8
I-123	Iodine (53)	6.0	1.6 * 102	3.0	8.1 * 101	7.1 * 104	1.9 * 106
I-124		1.0	2.7 * 101	1.0	2.7 * 101	9.3 * 103	2.5 * 105
I-125		2.0 * 101	5.4 * 102	3.0	8.1 * 101	6.4 * 102	1.7 * 104
I-126		2.0	5.4 * 101	1.0	2.7 * 101	2.9 * 103	8.0 * 104
I-129		Unlimited	Unlimited	Unlimited	Unlimited	6.5 * 10-6	1.8 * 10-4
I-131		3.0	8.1 * 101	7.0 * 10-1	1.9 * 101	4.6 * 103	1.2 * 105
I-132		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	3.8 * 105	1.0 * 107
I-133		7.0 * 10-1	1.9 * 101	6.0 * 10-1	1.6 * 101	4.2 * 104	1.1 * 106
I-134		3.0 * 10-1	8.1	3.0 * 10-1	8.1	9.9 * 105	2.7 * 107
I-135 (a)		6.0 * 10-1	1.6 * 101	6.0 * 10-1	1.6 * 101	1.3 * 105	3.5 * 106
In-111	Indium (49)	3.0	8.1 * 101	3.0	8.1 * 101	1.5 * 104	4.2 * 105
In-113m		4.0	1.1 * 102	2.0	5.4 * 101	6.2 * 105	1.7 * 107
In-114m (a)		1.0 * 101	2.7 * 102	5.0 * 10-1	1.4 * 101	8.6 * 102	2.3 * 104
In-115m		7.0	1.9 * 102	1.0	2.7 * 101	2.2 * 105	6.1 * 106
Ir-189 (a)	Iridium (77)	1.0 * 101	2.7 * 102	1.0 * 101	2.7 * 102	1.9 * 103	5.2 * 104
Ir-190		7.0 * 10-1	1.9 * 101	7.0 * 10-1	1.9 * 101	2.3 * 103	6.2 * 104
Ir-192		c 1.0	c 2.7 * 101	6.0 * 10-1	1.6 * 101	3.4 * 102	9.2 * 103
Ir-194		3.0 * 10-1	8.1	3.0 * 10-1	8.1	3.1 * 104	8.4 * 105
K-40	Potassium (19)	9.0 * 10-1	2.4 * 101	9.0 * 10-1	2.4 * 101	2.4 * 10-7	6.4 * 10-6
K-42		2.0 * 10-1	5.4	2.0 * 10-1	5.4	2.2 * 105	6.0 * 106
K-43		7.0 * 10-1	1.9 * 101	6.0 * 10-1	1.6 * 101	1.2 * 105	3.3 * 106
Kr-79	Krypton (36)	4.0	1.1 * 102	2.0	5.4 * 101	4.2 * 104	1.1 * 106
Kr-81		4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	7.8 * 10-4	2.1 * 10-2
Kr-85		1.0 * 101	2.7 * 102	1.0 * 101	2.7 * 102	1.5 * 101	3.9 * 102
Kr-85m		8.0	2.2 * 102	3.0	8.1 * 101	3.0 * 105	8.2 * 106
Kr-87		2.0 * 10-1	5.4	2.0 * 10-1	5.4	1.0 * 106	2.8 * 107
La-137	Lanthanum (57)	3.0 * 101	8.1 * 102	6.0	1.6 * 102	1.6 * 10-3	4.4 * 10-2
La-140		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	2.1 * 104	5.6 * 105
Lu-172	Lutetium (71)	6.0 * 10-1	1.6 * 101	6.0 * 10-1	1.6 * 101	4.2 * 103	1.1 * 105
Lu-173		8.0	2.2 * 102	8.0	2.2 * 102	5.6 * 101	1.5 * 103
Lu-174		9.0	2.4 * 102	9.0	2.4 * 102	2.3 * 101	6.2 * 102
Lu-174m		2.0 * 101	5.4 * 102	1.0 * 101	2.7 * 102	2.0 * 102	5.3 * 103
Lu-177		3.0 * 101	8.1 * 102	7.0 * 10-1	1.9 * 101	4.1 * 103	1.1 * 105
Mg-28 (a)	Magnesium (12)	3.0 * 10-1	8.1	3.0 * 10-1	8.1	2.0 * 105	5.4 * 106
Mn-52	Manganese (25)	3.0 * 10-1	8.1	3.0 * 10-1	8.1	1.6 * 104	4.4 * 105
Mn-53		Unlimited	Unlimited	Unlimited	Unlimited	6.8 * 10-5	1.8 * 10-3
Mn-54		1.0	2.7 * 101	1.0	2.7 * 101	2.9 * 102	7.7 * 103
Mn-56		3.0 * 10-1	8.1	3.0 * 10-1	8.1	8.0 * 105	2.2 * 107
Mo-93	Molybdenum (42)	4.0 * 101	1.1 * 103	2.0 * 101	5.4 * 102	4.1 * 10-2	1.1
Mo-99ah		1.0	2.7 * 101	6.0 * 10-1	1.6 * 101	1.8 * 104	4.8 * 105
N-13	Nitrogen (7)	9.0 * 10-1	2.4 * 101	6.0 * 10-1	1.6 * 101	5.4 * 107	1.5 * 109
Na-22	Sodium (11)	5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	2.3 * 102	6.3 * 103
Na-24		2.0 * 10-1	5.4	2.0 * 10-1	5.4	3.2 * 105	8.7 * 106
Nb-93m	Niobium (41)	4.0 * 101	1.1 * 103	3.0 * 101	8.1 * 102	8.8	2.4 * 102
Nb-94		7.0 * 10-1	1.9 * 101	7.0 * 10-1	1.9 * 101	6.9 * 10-3	1.9 * 10-1
Nb-95		1.0	2.7 * 101	1.0	2.7 * 101	1.5 * 103	3.9 * 104
Nb-97		9.0 * 10-1	2.4 * 101	6.0 * 10-1	1.6 * 101	9.9 * 105	2.7 * 107
Nd-147	Neodymium (60)	6.0	1.6 * 102	6.0 * 10-1	1.6 * 101	3.0 * 103	8.1 * 104
Nd-149		6.0 * 10-1	1.6 * 101	5.0 * 10-1	1.4 * 101	4.5 * 105	1.2 * 107
Ni-59	Nickel (28)	Unlimited	Unlimited	Unlimited	Unlimited	3.0 * 10-3	8.0 * 10-2
Ni-63		4.0 * 101	1.1 * 103	3.0 * 101	8.1 * 102	2.1	5.7 * 101
Ni-65		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	7.1 * 105	1.9 * 107
Np-235	Neptunium (93)	4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	5.2 * 101	1.4 * 103
Np-236 (short-lived)		2.0 * 101	5.4 * 102	2.0	5.4 * 101	4.7 * 10-4	1.3 * 10-2
Np-236 (long-lived)		9.0 * 100	2.4 * 102	2.0 * 10-2	5.4 * 10-1	4.7 * 10-4	1.3 * 10-2
Np-237		2.0 * 101	5.4 * 102	2.0 * 10-3	5.4 * 10-2	2.6 * 10-5	7.1 * 10-4
Np-239		7.0	1.9 * 102	4.0 * 10-1	1.1 * 101	8.6 * 103	2.3 * 105
Os-185	Osmium (76)	1.0	2.7 * 101	1.0	2.7 * 101	2.8 * 102	7.5 * 103
Os-191		1.0 * 101	2.7 * 102	2.0	5.4 * 101	1.6 * 103	4.4 * 104
Os-191m		4.0 * 101	1.1 * 103	3.0 * 101	8.1 * 102	4.6 * 104	1.3 * 106
Os-193		2.0	5.4 * 101	6.0 * 10-1	1.6 * 101	2.0 * 104	5.3 * 105
Os-194 (a)		3.0 * 10-1	8.1	3.0 * 10-1	8.1	1.1 * 101	3.1 * 102
P-32	Phosphorus (15)	5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	1.1 * 104	2.9 * 105
P-33		4.0 * 101	1.1 * 103	1.0	2.7 * 101	5.8 * 103	1.6 * 105
Pa-230 (a)	Protactinium (91)	2.0	5.4 * 101	7.0 * 10-2	1.9	1.2 * 103	3.3 * 104
Pa-231		4.0	1.1 * 102	4.0 * 10-4	1.1 * 10-2	1.7 * 10-3	4.7 * 10-2
Pa-233		5.0	1.4 * 102	7.0 * 10-1	1.9 * 101	7.7 * 102	2.1 * 104
Pb-201	Lead (82)	1.0	2.7 * 101	1.0	2.7 * 101	6.2 * 104	1.7 * 106
Pb-202		4.0 * 101	1.1 * 103	2.0 * 101	5.4 * 102	1.2 * 10-4	3.4 * 10-3
Pb-203		4.0	1.1 * 102	3.0	8.1 * 101	1.1 * 104	3.0 * 105
Pb-205		Unlimited	Unlimited	Unlimited	Unlimited	4.5 * 10-6	1.2 * 10-4
Pb-210 (a)		1.0	2.7 * 101	5.0 * 10-2	1.4	2.8	7.6 * 101
Pb-212 (a)		7.0 * 10-1	1.9 * 101	2.0 * 10-1	5.4	5.1 * 104	1.4 * 106
Pd-103 (a)	Palladium (46)	4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	2.8 * 103	7.5 * 104
Pd-107		Unlimited	Unlimited	Unlimited	Unlimited	1.9 * 10-5	5.1 * 10-4
Pd-109		2.0	5.4 * 101	5.0 * 10-1	1.4 * 101	7.9 * 104	2.1 * 106
Pm-143	Promethium (61)	3.0	8.1 * 101	3.0	8.1 * 101	1.3 * 102	3.4 * 103
Pm-144		7.0 * 10-1	1.9 * 101	7.0 * 10-1	1.9 * 101	9.2 * 101	2.5 * 103
Pm-145		3.0 * 101	8.1 * 102	1.0 * 101	2.7 * 102	5.2	1.4 * 102
Pm-147		4.0 * 101	1.1 * 103	2.0	5.4 * 101	3.4 * 101	9.3 * 102
Pm-148m (a)		8.0 * 10-1	2.2 * 101	7.0 * 10-1	1.9 * 101	7.9 * 102	2.1 * 104
Pm-149		2.0	5.4 * 101	6.0 * 10-1	1.6 * 101	1.5 * 104	4.0 * 105
Pm-151		2.0	5.4 * 101	6.0 * 10-1	1.6 * 101	2.7 * 104	7.3 * 105
Po-210	Polonium (84)	4.0 * 101	1.1 * 103	2.0 * 10-2	5.4 * 10-1	1.7 * 102	4.5 * 103
Pr-142	Praseodymium (59)	4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	4.3 * 104	1.2 * 106
Pr-143		3.0	8.1 * 101	6.0 * 10-1	1.6 * 101	2.5 * 103	6.7 * 104
Pt-188 (a)	Platinum (78)	1.0	2.7 * 101	8.0 * 10-1	2.2 * 101	2.5 * 103	6.8 * 104
Pt-191		4.0	1.1 * 102	3.0	8.1 * 101	8.7 * 103	2.4 * 105
Pt-193		4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	1.4	3.7 * 101
Pt-193m		4.0 * 101	1.1 * 103	5.0 * 10-1	1.4 * 101	5.8 * 103	1.6 * 105
Pt-195m		1.0 * 101	2.7 * 102	5.0 * 10-1	1.4 * 101	6.2 * 103	1.7 * 105
Pt-197		2.0 * 101	5.4 * 102	6.0 * 10-1	1.6 * 101	3.2 * 104	8.7 * 105
Pt-197m		1.0 * 101	2.7 * 102	6.0 * 10-1	1.6 * 101	3.7 * 105	1.0 * 107
Pu-236	Plutonium (94)	3.0 * 101	8.1 * 102	3.0 * 10-3	8.1 * 10-2	2.0 * 101	5.3 * 102
Pu-237		2.0 * 101	5.4 * 102	2.0 * 101	5.4 * 102	4.5 * 102	1.2 * 104
Pu-238		1.0 * 101	2.7 * 102	1.0 * 10-3	2.7 * 10-2	6.3 * 10-1	1.7 * 101
Pu-239		1.0 * 101	2.7 * 102	1.0 * 10-3	2.7 * 10-2	2.3 * 10-3	6.2 * 10-2
Pu-240		1.0 * 101	2.7 * 102	1.0 * 10-3	2.7 * 10-2	8.4 * 10-3	2.3 * 10-1
Pu-241 (a)		4.0 * 101	1.1 * 103	6.0 * 10-2	1.6	3.8	1.0 * 102
Pu-242		1.0 * 101	2.7 * 102	1.0 * 10-3	2.7 * 10-2	1.5 * 10-4	3.9 * 10-3
Pu-244 (a)		4.0 * 10-1	1.1 * 101	1.0 * 10-3	2.7 * 10-2	6.7 * 10-7	1.8 * 10-5
Ra-223 (a)	Radium (88)	4.0 * 10-1	1.1 * 101	7.0 * 10-3	1.9 * 10-1	1.9 * 103	5.1 * 104
Ra-224 (a)		4.0 * 10-1	1.1 * 101	2.0 * 10-2	5.4 * 10-1	5.9 * 103	1.6 * 105
Ra-225 (a)		2.0 * 10-1	5.4	4.0 * 10-3	1.1 * 10-1	1.5 * 103	3.9 * 104
Ra-226 (a)		2.0 * 10-1	5.4	3.0 * 10-3	8.1 * 10-2	3.7 * 10-2	1.0
Ra-228 (a)		6.0 * 10-1	1.6 * 101	2.0 * 10-2	5.4 * 10-1	1.0 * 101	2.7 * 102
Rb-81	Rubidium (37)	2.0	5.4 * 101	8.0 * 10-1	2.2 * 101	3.1 * 105	8.4 * 106
Rb-83 (a)		2.0	5.4 * 101	2.0	5.4 * 101	6.8 * 102	1.8 * 104
Rb-84		1.0	2.7 * 101	1.0	2.7 * 101	1.8 * 103	4.7 * 104
Rb-86		5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	3.0 * 103	8.1 * 104
Rb-87		Unlimited	Unlimited	Unlimited	Unlimited	3.2 * 10-9	8.6 * 10-8
Rb(nat)		Unlimited	Unlimited	Unlimited	Unlimited	6.7 * 106	1.8 * 108
Re-184	Rhenium (75)	1.0	2.7 * 101	1.0	2.7 * 101	6.9 * 102	1.9 * 104
Re-184m		3.0	8.1 * 101	1.0	2.7 * 101	1.6 * 102	4.3 * 103
Re-186		2.0	5.4 * 101	6.0 * 10-1	1.6 * 101	6.9 * 103	1.9 * 105
Re-187		Unlimited	Unlimited	Unlimited	Unlimited	1.4 * 10-9	3.8 * 10-8
Re-188		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	3.6 * 104	9.8 * 105
Re-189 (a)		3.0	8.1 * 101	6.0 * 10-1	1.6 * 101	2.5 * 104	6.8 * 105
Re(nat)		Unlimited	Unlimited	Unlimited	Unlimited	0.0	2.4 * 10-8
Rh-99	Rhodium (45)	2.0	5.4 * 101	2.0	5.4 * 101	3.0 * 103	8.2 * 104
Rh-101		4.0	1.1 * 102	3.0	8.1 * 101	4.1 * 101	1.1 * 103
Rh-102		5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	4.5 * 101	1.2 * 103
Rh-102m		2.0	5.4 * 101	2.0	5.4 * 101	2.3 * 102	6.2 * 103
Rh-103m		4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	1.2 * 106	3.3 * 107
Rh-105		1.0 * 101	2.7 * 102	8.0 * 10-1	2.2 * 101	3.1 * 104	8.4 * 105
Rn-222 (a)	Radon (86)	3.0 * 10-1	8.1	4.0 * 10-3	1.1 * 10-1	5.7 * 103	1.5 * 105
Ru-97	Ruthenium (44)	5.0	1.4 * 102	5.0	1.4 * 102	1.7 * 104	4.6 * 105
Ru-103 (a)		2.0	5.4 * 101	2.0	5.4 * 101	1.2 * 103	3.2 * 104
Ru-105		1.0	2.7 * 101	6.0 * 10-1	1.6 * 101	2.5 * 105	6.7 * 106
Ru-106 (a)		2.0 * 10-1	5.4	2.0 * 10-1	5.4	1.2 * 102	3.3 * 103
S-35	Sulphur (16)	4.0 * 101	1.1 * 103	3.0	8.1 * 101	1.6 * 103	4.3 * 104
Sb-122	Antimony (51)	4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	1.5 * 104	4.0 * 105
Sb-124		6.0 * 10-1	1.6 * 101	6.0 * 10-1	1.6 * 101	6.5 * 102	1.7 * 104
Sb-125		2.0	5.4 * 101	1.0	2.7 * 101	3.9 * 101	1.0 * 103
Sb-126		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	3.1 * 103	8.4 * 104
Sc-44	Scandium (21)	5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	6.7 * 105	1.8 * 107
Sc-46		5.0 * 10-1	1.4 * 101	5.0 * 10-1	1.4 * 101	1.3 * 103	3.4 * 104
Sc-47		1.0 * 101	2.7 * 102	7.0 * 10-1	1.9 * 101	3.1 * 104	8.3 * 105
Sc-48		3.0 * 10-1	8.1	3.0 * 10-1	8.1	5.5 * 104	1.5 * 106
Se-75	Selenium (34)	3.0	8.1 * 101	3.0	8.1 * 101	5.4 * 102	1.5 * 104
Se-79		4.0 * 101	1.1 * 103	2.0	5.4 * 101	2.6 * 10-3	7.0 * 10-2
Si-31	Silicon (14)	6.0 * 10-1	1.6 * 101	6.0 * 10-1	1.6 * 101	1.4 * 106	3.9 * 107
Si-32		4.0 * 101	1.1 * 103	5.0 * 10-1	1.4 * 101	3.9	1.1 * 102
Sm-145	Samarium (62)	1.0 * 101	2.7 * 102	1.0 * 101	2.7 * 102	9.8 * 101	2.6 * 103
Sm-147		Unlimited	Unlimited	Unlimited	Unlimited	8.5 * 10-10	2.3 * 10-8
Sm-151		4.0 * 101	1.1 * 103	1.0 * 101	2.7 * 102	9.7 * 10-1	2.6 * 101
Sm-153		9.0	2.4 * 102	6.0 * 10-1	1.6 * 101	1.6 * 104	4.4 * 105
Sn-113 (a)	Tin (50)	4.0	1.1 * 102	2.0	5.4 * 101	3.7 * 102	1.0 * 104
Sn-117m		7.0	1.9 * 102	4.0 * 10-1	1.1 * 101	3.0 * 103	8.2 * 104
Sn-119m		4.0 * 101	1.1 * 103	3.0 * 101	8.1 * 102	1.4 * 102	3.7 * 103
Sn-121m (a)		4.0 * 101	1.1 * 103	9.0 * 10-1	2.4 * 101	2.0	5.4 * 101
Sn-123		8.0 * 10-1	2.2 * 101	6.0 * 10-1	1.6 * 101	3.0 * 102	8.2 * 103
Sn-125		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	4.0 * 103	1.1 * 105
Sn-126 (a)		6.0 * 10-1	1.6 * 101	4.0 * 10-1	1.1 * 101	1.0 * 10-3	2.8 * 10-2
Sr-82 (a)	Strontium (38)	2.0 * 10-1	5.4	2.0 * 10-1	5.4	2.3 * 103	6.2 * 104
Sr-85		2.0	5.4 * 101	2.0	5.4 * 101	8.8 * 102	2.4 * 104
Sr-85m		5.0	1.4 * 102	5.0	1.4 * 102	1.2 * 106	3.3 * 107
Sr-87m		3.0	8.1 * 101	3.0	8.1 * 101	4.8 * 105	1.3 * 107
Sr-89		6.0 * 10-1	1.6 * 101	6.0 * 10-1	1.6 * 101	1.1 * 103	2.9 * 104
Sr-90 (a)		3.0 * 10-1	8.1	3.0 * 10-1	8.1	5.1	1.4 * 102
Sr-91 (a)		3.0 * 10-1	8.1	3.0 * 10-1	8.1	1.3 * 105	3.6 * 106
Sr-92 (a)		1.0	2.7 * 101	3.0 * 10-1	8.1	4.7 * 105	1.3 * 107
T(H-3)	Tritium (1)	4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	3.6 * 102	9.7 * 103
Ta-178 (long-lived)	Tantalum (73)	1.0	2.7 * 101	8.0 * 10-1	2.2 * 101	4.2 * 106	1.1 * 108
Ta-179		3.0 * 101	8.1 * 102	3.0 * 101	8.1 * 102	4.1 * 101	1.1 * 103
Ta-182		9.0 * 10-1	2.4 * 101	5.0 * 10-1	1.4 * 101	2.3 * 102	6.2 * 103
Tb-157	Terbium (65)	4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	5.6 * 10-1	1.5 * 101
Tb-158		1.0	2.7 * 101	1.0	2.7 * 101	5.6 * 10-1	1.5 * 101
Tb-160		1.0	2.7 * 101	6.0 * 10-1	1.6 * 101	4.2 * 102	1.1 * 104
Tc-95m (a)	Technetium (43)	2.0	5.4 * 101	2.0	5.4 * 101	8.3 * 102	2.2 * 104
Tc-96		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	1.2 * 104	3.2 * 105
Tc-96m (a)		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	1.4 * 106	3.8 * 107
Tc-97		Unlimited	Unlimited	Unlimited	Unlimited	5.2 * 10-5	1.4 * 10-3
Tc-97m		4.0 * 101	1.1 * 103	1.0	2.7 * 101	5.6 * 102	1.5 * 104
Tc-98		8.0 * 10-1	2.2 * 101	7.0 * 10-1	1.9 * 101	3.2 * 10-5	8.7 * 10-4
Tc-99		4.0 * 101	1.1 * 103	9.0 * 10-1	2.4 * 101	6.3 * 10-4	1.7 * 10-2
Tc-99m		1.0 * 101	2.7 * 102	4.0	1.1 * 102	1.9 * 105	5.3 * 106
Te-121	Tellurium (52)	2.0	5.4 * 101	2.0	5.4 * 101	2.4 * 103	6.4 * 104
Te-121m		5.0	1.4 * 102	3.0	8.1 * 101	2.6 * 102	7.0 * 103
Te-123m		8.0	2.2 * 102	1.0	2.7 * 101	3.3 * 102	8.9 * 103
Te-125m		2.0 * 101	5.4 * 102	9.0 * 10-1	2.4 * 101	6.7 * 102	1.8 * 104
Te-127		2.0 * 101	5.4 * 102	7.0 * 10-1	1.9 * 101	9.8 * 104	2.6 * 106
Te-127m (a)		2.0 * 101	5.4 * 102	5.0 * 10-1	1.4 * 101	3.5 * 102	9.4 * 103
Te-129		7.0 * 10-1	1.9 * 101	6.0 * 10-1	1.6 * 101	7.7 * 105	2.1 * 107
Te-129m (a)		8.0 * 10-1	2.2 * 101	4.0 * 10-1	1.1 * 101	1.1 * 103	3.0 * 104
Te-131m (a)		7.0 * 10-1	1.9 * 101	5.0 * 10-1	1.4 * 101	3.0 * 104	8.0 * 105
Te-132 (a)		5.0 * 10-1	1.4 * 101	4.0 * 10-1	1.1 * 101	1.1 * 104	3.0 * 105
Th-227	Thorium (90)	1.0 * 101	2.7 * 102	5.0 * 10-3	1.4 * 10-1	1.1 * 103	3.1 * 104
Th-228 (a)		5.0 * 10-1	1.4 * 101	1.0 * 10-3	2.7 * 10-2	3.0 * 101	8.2 * 102
Th-229		5.0	1.4 * 102	5.0 * 10-4	1.4 * 10-2	7.9 * 10-3	2.1 * 10-1
Th-230		1.0 * 101	2.7 * 102	1.0 * 10-3	2.7 * 10-2	7.6 * 10-4	2.1 * 10-2
Th-231		4.0 * 101	1.1 * 103	2.0 * 10-2	5.4 * 10-1	2.0 * 104	5.3 * 105
Th-232		Unlimited	Unlimited	Unlimited	Unlimited	4.0 * 10-9	1.1 * 10-7
Th-234 (a)		3.0 * 10-1	8.1	3.0 * 10-1	8.1	8.6 * 102	2.3 * 104
Th(nat)		Unlimited	Unlimited	Unlimited	Unlimited	8.1 * 10-9	2.2 * 10-7
Ti-44 (a)	Titanium (22)	5.0 * 10-1	1.4 * 101	4.0 * 10-1	1.1 * 101	6.4	1.7 * 102
Tl-200	Thallium (81)	9.0 * 10-1	2.4 * 101	9.0 * 10-1	2.4 * 101	2.2 * 104	6.0 * 105
Tl-201		1.0 * 101	2.7 * 102	4.0	1.1 * 102	7.9 * 103	2.1 * 105
Tl-202		2.0	5.4 * 101	2.0	5.4 * 101	2.0 * 103	5.3 * 104
Tl-204		1.0 * 101	2.7 * 102	7.0 * 10-1	1.9 * 101	1.7 * 101	4.6 * 102
Tm-167	Thulium (69)	7.0	1.9 * 102	8.0 * 10-1	2.2 * 101	3.1 * 103	8.5 * 104
Tm-170		3.0	8.1 * 101	6.0 * 10-1	1.6 * 101	2.2 * 102	6.0 * 103
Tm-171		4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103
U-230 (fast lung absorption) (a)(d)	Uranium (92)	4.0 * 101	1.1 * 103	1.0 * 10-1	2.7	1.0 * 103	2.7 * 104
U-230 (medium lung absorption) (a)(e)		4.0 * 101	1.1 * 103	4.0 * 10-3	1.1 * 10-1	1.0 * 103	2.7 * 104
U-230 (slow lung absorption) (a)(f)		3.0 * 101	8.1 * 102	3.0 * 10-3	8.1 * 10-2	1.0 * 103	2.7 * 104
U-232 (fast lung absorption) (d)		4.0 * 101	1.1 * 103	1.0 * 10-2	2.7 * 10-1	8.3 * 10-1	2.2 * 101
U-232 (medium lung absorption) (e)		4.0 * 101	1.1 * 103	7.0 * 10-3	1.9 * 10-1	8.3 * 10-1	2.2 * 101
U-232 (slow lung absorption) (f)		1.0 * 101	2.7 * 102	1.0 * 10-3	2.7 * 10-2	8.3 * 10-1	2.2 * 101
U-233 (fast lung absorption) (d)		4.0 * 101	1.1 * 103	9.0 * 10-2	2.4	3.6 * 10-4	9.7 * 10-3
U-233 (medium lung absorption) (e)		4.0 * 101	1.1 * 103	2.0 * 10-2	5.4 * 10-1	3.6 * 10-4	9.7 * 10-3
U-233 (slow lung absorption) (f)		4.0 * 101	1.1 * 103	6.0 * 10-3	1.6 * 10-1	3.6 * 10-4	9.7 * 10-3
U-234 (fast lung absorption) (d)		4.0 * 101	1.1 * 103	9.0 * 10-2	2.4	2.3 * 10-4	6.2 * 10-3
U-234 (medium lung absorption) (e)		4.0 * 101	1.1 * 103	2.0 * 10-2	5.4 * 10-1	2.3 * 10-4	6.2 * 10-3
U-234 (slow lung absorption) (f)		4.0 * 101	1.1 * 103	6.0 * 10-3	1.6 * 10-1	2.3 * 10-4	6.2 * 10-3
U-235 (all lung absorption types) (a),(d),(e),(f)		Unlimited	Unlimited	Unlimited	Unlimited	8.0 * 10-8	2.2 * 10-6
U-236 (fast lung absorption) (d)		Unlimited	Unlimited	Unlimited	Unlimited	2.4 * 10-6	6.5 * 10-5
U-236 (medium lung absorption) (e)		4.0 * 101	1.1 * 103	2.0 * 10-2	5.4 * 10-1	2.4 * 10-6	6.5 * 10-5
U-236 (slow lung absorption) (f)		4.0 * 101	1.1 * 103	6.0 * 10-3	1.6 * 10-1	2.4 * 10-6	6.5 * 10-5
U-238 (all lung absorption types) (d),(e),(f)		Unlimited	Unlimited	Unlimited	Unlimited	1.2 * 10-8	3.4 * 10-7
U (nat)		Unlimited	Unlimited	Unlimited	Unlimited	2.6 * 10-8	7.1 * 10-7
U (enriched to 20% or less)(g)		Unlimited	Unlimited	Unlimited	Unlimited	See Table A-4	See Table A-4
U (dep)		Unlimited	Unlimited	Unlimited	Unlimited	See Table A-4	See Table A-4
V-48	Vanadium (23)	4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	6.3 * 103	1.7 * 105
V-49		4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	3.0 * 102	8.1 * 103
W-178 (a)	Tungsten (74)	9.0	2.4 * 102	5.0	1.4 * 102	1.3 * 103	3.4 * 104
W-181		3.0 * 101	8.1 * 102	3.0 * 101	8.1 * 102	2.2 * 102	6.0 * 103
W-185		4.0 * 101	1.1 * 103	8.0 * 10-1	2.2 * 101	3.5 * 102	9.4 * 103
W-187		2.0	5.4 * 101	6.0 * 10-1	1.6 * 101	2.6 * 104	7.0 * 105
W-188 (a)		4.0 * 10-1	1.1 * 101	3.0 * 10-1	8.1	3.7 * 102	1.0 * 104
Xe-122 (a)	Xenon (54)	4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	4.8 * 104	1.3 * 106
Xe-123		2.0	5.4 * 101	7.0 * 10-1	1.9 * 101	4.4 * 105	1.2 * 107
Xe-127		4.0	1.1 * 102	2.0	5.4 * 101	1.0 * 103	2.8 * 104
Xe-131m		4.0 * 101	1.1 * 103	4.0 * 101	1.1 * 103	3.1 * 103	8.4 * 104
Xe-133		2.0 * 101	5.4 * 102	1.0 * 101	2.7 * 102	6.9 * 103	1.9 * 105
Xe-135		3.0	8.1 * 101	2.0	5.4 * 101	9.5 * 104	2.6 * 106
Y-87 (a)	Yttrium (39)	1.0	2.7 * 101	1.0	2.7 * 101	1.7 * 104	4.5 * 105
Y-88		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	5.2 * 102	1.4 * 104
Y-90		3.0 * 10-1	8.1	3.0 * 10-1	8.1	2.0 * 104	5.4 * 105
Y-91		6.0 * 10-1	1.6 * 101	6.0 * 10-1	1.6 * 101	9.1 * 102	2.5 * 104
Y-91m		2.0	5.4 * 101	2.0	5.4 * 101	1.5 * 106	4.2 * 107
Y-92		2.0 * 10-1	5.4	2.0 * 10-1	5.4	3.6 * 105	9.6 * 106
Y-93		3.0 * 10-1	8.1	3.0 * 10-1	8.1	1.2 * 105	3.3 * 106
Yb-169	Ytterbium (70)	4.0	1.1 * 102	1.0	2.7 * 101	8.9 * 102	2.4 * 104
Yb-175		3.0 * 101	8.1 * 102	9.0 * 10-1	2.4 * 101	6.6 * 103	1.8 * 105
Zn-65	Zinc (30)	2.0	5.4 * 101	2.0	5.4 * 101	3.0 * 102	8.2 * 103
Zn-69		3.0	8.1 * 101	6.0 * 10-1	1.6 * 101	1.8 * 106	4.9 * 107
Zn-69m (a)		3.0	8.1 * 101	6.0 * 10-1	1.6 * 101	1.2 * 105	3.3 * 106
Zr-88	Zirconium (40)	3.0	8.1 * 101	3.0	8.1 * 101	6.6 * 102	1.8 * 104
Zr-93		Unlimited	Unlimited	Unlimited	Unlimited	9.3 * 10-5	2.5 * 10-3
Zr-95 (a)		2.0	5.4 * 101	8.0 * 10-1	2.2 * 101	7.9 * 102	2.1 * 104
Zr-97 (a)		4.0 * 10-1	1.1 * 101	4.0 * 10-1	1.1 * 101	7.1 * 104	1.9 * 106

^a A₁ and/or A₂ values include contributions from daughter nuclides with half-lives less than 10 days, as listed in the following:

Mg-28	Al-28
Ca-47	Sc-47
Ti-44	Sc-44
Fe-52	Mn-52m
Fe-60	Co-60m
Zn-69m	Zn-69
Ge-68	Ga-68
Rb-83	Kr-83m
Sr-82	Rb-82
Sr-90	Y-90
Sr-91	Y-91m
Sr-92	Y-92
Y-87	Sr-87m
Zr-95	Nb-95m
Zr-97	Nb-97m, Nb-97
Mo-99	Tc-99m
Tc-95m	Tc-95
Tc-96m	Tc-96
Ru-103	Rh-103m
Ru-106	Rh-106
Pd-103	Rh-103m
Ag-108m	Ag-108
Ag-110m	Ag-110
Cd-115	In-115m
In-114m	In-114
Sn-113	In-113m
Sn-121m	Sn-121
Sn-126	Sb-126m
Te-127m	Te-127
Te-129m	Te-129
Te-131m	Te-131
Te-132	I-132
I-135	Xe-135m
Xe-122	I-122
Cs-137	Ba-137m
Ba-131	Cs-131
Ba-140	La-140
Ce-144	Pr-144m, Pr-144
Pm-148m	Pm-148
Gd-146	Eu-146
Dy-166	Ho-166
Hf-172	Lu-172
W-178	Ta-178
W-188	Re-188
Re-189	Os-189m
Os-194	Ir-194
Ir-189	Os-189m
Pt-188	Ir-188
Hg-194	Au-194
Hg-195m	Hg-195
Pb-210	Bi-210
Pb-212	Bi-212, Tl-208, Po-212
Bi-210m	Tl-206
Bi-212	Tl-208, Po-212
At-211	Po-211
Rn-222	Po-218, Pb-214, At-218, Bi-214, Po-214
Ra-223	Rn-219, Po-215, Pb-211, Bi-211, Po-211, Tl-207
Ra-224	Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212
Ra-225	Ac-225, Fr-221, At-217, Bi-213, Tl-209, Po-213, Pb-209
Ra-226	Rn-222, Po-218, Pb-214, At-218, Bi-214, Po-214
Ra-228	Ac-228
Ac-225	Fr-221, At-217, Bi-213, Tl-209, Po-213, Pb-209
Ac-227	Fr-223
Th-228	Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212
Th-234	Pa-234m, Pa-234
Pa-230	Ac-226, Th-226, Fr-222, Ra-222, Rn-218, Po-214
U-230	Th-226, Ra-222, Rn-218, Po-214
U-235	Th-231
Pu-241	U-237
Pu-244	U-240, Np-240m
Am-242m	Am-242, Np-238
Am-243	Np-239
Cm-247	Pu-243
Bk-249	Am-245
Cf-253	Cm-249

^b The values of A₁ and A₂ in Curies (Ci) are approximate and for information only; the regulatory standard units are Terabecquerels (TBq) (see Appendix A to Part 71-Determination of A₁ and A₂, Section I).

^c The activity of Ir-192 in special form may be determined from a measurement of the rate of decay or a measurement of the radiation level at a prescribed distance from the source.

^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.

^h A₂ = 0.74 TBq (20 Ci) for Mo-99 for domestic use.

Table A-2-Exempt Material Activity Concentrations and Exempt Consignment Activity Limits for Radionuclides

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		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]

^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.

Table A-3-General Values for A₁ and A₂

Contents	A1		A2		Activity concentration for exempt material (Bq/g)	Activity concentration for exempt material (Ci/g)	Activity limits for exempt consignments (Bq)	Activity limits for exempt consignments (Ci)
	(TBq)	(Ci)	(TBq)	(Ci)
Only beta or gamma emitting radionuclides are known to be present	1 * 10-1	2.7 * 100	2 * 10-2	5.4 * 10-1	1 * 101	2.7 * 10-10	1 * 104	2.7 * 10-7
Alpha emitting nuclides, but no neutron emitters, are known to be present (a)	2 * 10-1	5.4 * 100	9 * 10-5	2.4 * 10-3	1 * 10-1	2.7 * 10-12	1 * 103	2.7 * 10-8
Neutron emitting nuclides are known to be present or no relevant data are available	1 * 10-3	2.7 * 10-2	9 * 10-5	2.4 * 10-3	1 * 10-1	2.7 * 10-12	1 * 103	2.7 * 10-8

^a If beta or gamma emitting nuclides are known to be present, the A₁ value of 0.1 TBq (2.7 Ci) should be used.

Table A-4-Activity-mass Relationships for Uranium

Uranium Enrichment1 wt % U-235 present	Specific Activity
	TBq/g	Ci/g
0.45	1.8 * 10-8	5.0 * 10-7
0.72	2.6 * 10-8	7.1 * 10-7
1	2.8 * 10-8	7.6 * 10-7
1.5	3.7 * 10-8	1.0 * 10-6
5	1.0 * 10-7	2.7 * 10-6
10	1.8 * 10-7	4.8 * 10-6
20	3.7 * 10-7	1.0 * 10-5
35	7.4 * 10-7	2.0 * 10-5
50	9.3 * 10-7	2.5 * 10-5
90	2.2 * 10-6	5.8 * 10-5
93	2.6 * 10-6	7.0 * 10-5
95	3.4 * 10-6	9.1 * 10-5

¹ The figures for uranium include representative values for the activity of the uranium-234 that is concentrated during the enrichment process.

10 C.F.R. 71 app A to Part 71

69 FR 3800, Jan. 26, 2004; 69 FR 58039, Sept. 29, 2004, as amended at 77 FR 39908, July 6, 2012; 80 FR 34014, June 12, 2015; 85 FR 65663, Oct. 16, 2020

85 FR 65664, 11/16/2020