Section 3770. Determination of A1 and A2  


Latest version.
  • A. Values of A1 and A2 for individual radionuclides, which are the bases for many activity limits elsewhere in these regulations, are given in Table 1 of this section. 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.

    B. For individual radionuclides whose identities are known, but that are not listed in Table 1 or Table 2 of this section, the A1 and A2 values or exempt material activity concentration and exempt consignment activity values contained in Table 3 of this section may be used. Otherwise, the licensee shall obtain prior agency approval for radionuclides not listed in Table 1 or Table 2 of this section, before shipping the material. The licensee shall submit requests for prior approval to the agency.

    C. In the calculations of A1 and A2 for a radionuclide not in Table 1 of this section, 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 or 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.

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

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

    Value for normal form radioactive
material, transported in A Sub1 package

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

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

    ∑B(i)/A2(i)≤1

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

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

    Formula for A Sub1 value for
mixtures of special form material

    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).

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

    Formula for A Sub2 value for
mixtures of normal form material

    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).

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

    Formula for exempt activity
concentration for mixture of nuclides

    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).

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

    Formula for the activity limit for an
exempt consignment for mixtures of radionuclides

    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).

    E. 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 subsection D of this section. 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.

    F. Table 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)

    8.0X10-1

    2.2X10-1

    6.0X10-3

    1.6X10-1

    2.1X103

    5.8X104

    Ac-227 (a)

    9.0X10-1

    2.4X10-1

    9.0X10-5

    2.4X10-3

    2.7

    7.2X101

    Ac-228

    6.0X10-1

    1.6X101

    5.0X10-1

    1.4X101

    8.4X104

    2.2X106

    Ag-105

    Silver (47)

    2.0

    5.4X101

    2.0

    5.4X101

    1.1X103

    3.0X104

    Ag-108m (a)

    7.0X10-1

    1.9X101

    7.0X10-1

    1.9X101

    9.7X10-1

    2.6X101

    Ag-110m (a)

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    1.8X102

    4.7X103

    Ag-111

    2.0

    5.4X101

    6.0X10-1

    1.6X101

    5.8X103

    1.6X105

    Al-26

    Aluminum (13)

    1.0X10-1

    2.7

    1.0X10-1

    2.7

    7.0X10-4

    1.9X10-2

    Am-241

    Americium (95)

    1.0X101

    2.7X102

    1.0X10-3

    2.7X10-2

    1.3X10-1

    3.4

    Am-242m (a)

    1.0X101

    2.7X102

    1.0X10-3

    2.7X10-2

    3.6X10-1

    1.0X101

    Am-243 (a)

    5.0

    1.4X102

    1.0X10-3

    2.7X10-2

    7.4X10-3

    2.0X10-1

    Ar-37

    Argon (18)

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    3.7X103

    9.9X104

    Ar-39

    4.0X101

    1.1X103

    2.0X101

    5.4X102

    1.3

    3.4X101

    Ar-41

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    1.5X106

    4.2X107

    As-72

    Arsenic (33)

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    6.2X104

    1.7X106

    As-73

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    8.2X102

    2.2X104

    As-74

    1.0

    2.7X101

    9.0X10-1

    2.4X101

    3.7X103

    9.9X104

    As-76

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    5.8X104

    1.6X106

    As-77

    2.0X101

    5.4X102

    7.0X10-1

    1.9X101

    3.9X104

    1.0X106

    At-211 (a)

    Astatine (85)

    2.0X101

    5.4X102

    5.0X10-1

    1.4X101

    7.6X104

    2.1X106

    Au-193

    Gold (79)

    7.0

    1.9X102

    2.0

    5.4X101

    3.4X104

    9.2X105

    Au-194

    1.0

    2.7X101

    1.0

    2.7X101

    1.5X104

    4.1X105

    Au-195

    1.0X101

    2.7X102

    6.0

    1.6X102

    1.4X102

    3.7X103

    Au-198

    1.0

    2.7X101

    6.0X10-1

    1.6X101

    9.0X103

    2.4X105

    Au-199

    1.0X101

    2.7X102

    6.0X10-1

    1.6X101

    7.7X103

    2.1X105

    Ba-131 (a)

    Barium (56)

    2.0

    5.4X101

    2.0

    5.4X101

    3.1X103

    8.4X104

    Ba-133

    3.0

    8.1X101

    3.0

    8.1X101

    9.4

    2.6X102

    Ba-133m

    2.0X101

    5.4X102

    6.0X10-1

    1.6X101

    2.2X104

    6.1X105

    Ba-140 (a)

    5.0X10-1

    1.4X101

    3.0X10-1

    8.1

    2.7X103

    7.3X104

    Be-7

    Beryllium (4)

    2.0X101

    5.4X102

    2.0X101

    5.4X102

    1.3X104

    3.5X105

    Be-10

    4.0X101

    1.1X103

    6.0X10-1

    1.6X101

    8.3X10-4

    2.2X10-2

    Bi-205

    Bismuth (83)

    7.0X10-1

    1.9X101

    7.0X10-1

    1.9X101

    1.5X103

    4.2X104

    Bi-206

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    3.8X103

    1.0X105

    Bi-207

    7.0X10-1

    1.9X101

    7.0X10-1

    1.9X101

    1.9

    5.2X101

    Bi-210

    1.0

    2.7X101

    6.0X10-1

    1.6X101

    4.6X103

    1.2X105

    Bi-210m (a)

    6.0X10-1

    1.6X101

    2.0X10-2

    5.4X10-1

    2.1X10-5

    5.7X10-4

    Bi-212 (a)

    7.0X10-1

    1.9X101

    6.0X10-1

    1.6X101

    5.4X105

    1.5X107

    Bk-247

    Berkelium (97)

    8.0

    2.2X102

    8.0X10-4

    2.2X10-2

    3.8X10-2

    1.0

    Bk-249 (a)

    4.0X101

    1.1X103

    3.0X10-1

    8.1

    6.1X101

    1.6X103

    Br-76

    Bromine (35)

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    9.4X104

    2.5X106

    Br-77

    3.0

    8.1X101

    3.0

    8.1X101

    2.6X104

    7.1X105

    Br-82

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    4.0X104

    1.1X106

    C-11

    Carbon (6)

    1.0

    2.7X101

    6.0X10-1

    1.6X101

    3.1X107

    8.4X108

    C-14

    4.0X101

    1.1X103

    3.0

    8.1X101

    1.6X10-1

    4.5

    Ca-41

    Calcium (20)

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    3.1X10-3

    8.5X10-2

    Ca-45

    4.0X101

    1.1X103

    1.0

    2.7X101

    6.6X102

    1.8X104

    Ca-47 (a)

    3.0

    8.1X101

    3.0X10-1

    8.1

    2.3X104

    6.1X105

    Cd-109

    Cadmium (48)

    3.0X101

    8.1X102

    2.0

    5.4X101

    9.6X101

    2.6X103

    Cd-113m

    4.0X101

    1.1X103

    5.0X10-1

    1.4X101

    8.3

    2.2X102

    Cd-115 (a)

    3.0

    8.1X101

    4.0X10-1

    1.1X101

    1.9X104

    5.1X105

    Cd-115m

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    9.4X102

    2.5X104

    Ce-139

    Cerium (58)

    7.0

    1.9X102

    2.0

    5.4X101

    2.5X102

    6.8X103

    Ce-141

    2.0X101

    5.4X102

    6.0X10-1

    1.6X101

    1.1X103

    2.8X104

    Ce-143

    9.0X10-1

    2.4X101

    6.0X10-1

    1.6X101

    2.5X104

    6.6X105

    Ce-144 (a)

    2.0X10-1

    5.4

    2.0X10-1

    5.4

    1.2X102

    3.2X103

    Cf-248

    Californium (98)

    4.0X101

    1.1X103

    6.0X10-3

    1.6X10-1

    5.8X101

    1.6X103

    Cf-249

    3.0

    8.1X101

    8.0X10-4

    2.2X10-2

    1.5X10-1

    4.1

    Cf-250

    2.0X101

    5.4X102

    2.0X10-3

    5.4X10-2

    4.0

    1.1X102

    Cf-251

    7.0

    1.9X102

    7.0X10-4

    1.9X10-2

    5.9X10-2

    1.6

    Cf-252 (h)

    5.0X10-2

    1.4

    3.0X10-3

    8.1X10-2

    2.0X101

    5.4X102

    Cf-253 (a)

    4.0X101

    1.1X103

    4.0X10-2

    1.1

    1.1X103

    2.9X104

    Cf-254

    1.0X10-3

    2.7X10-2

    1.0X10-3

    2.7X10-2

    3.1X102

    8.5X103

    Cl-36

    Chlorine (17)

    1.0X101

    2.7X102

    6.0X10-1

    1.6X101

    1.2X10-3

    3.3X10-2

    Cl-38

    2.0X10-1

    5.4

    2.0X10-1

    5.4

    4.9X106

    1.3X108

    Cm-240

    Curium (96)

    4.0X101

    1.1X103

    2.0X10-2

    5.4X10-1

    7.5X102

    2.0X104

    Cm-241

    2.0

    5.4X101

    1.0

    2.7X101

    6.1X102

    1.7X104

    Cm-242

    4.0X101

    1.1X103

    1.0X10-2

    2.7X10-1

    1.2X102

    3.3X103

    Cm-243

    9.0

    2.4X102

    1.0X10-3

    2.7X10-2

    1.9X10-3

    5.2X104

    Cm-244

    2.0X101

    5.4X102

    2.0X10-3

    5.4X10-2

    3.0

    8.1X101

    Cm-245

    9.0

    2.4X102

    9.0X10-4

    2.4X10-2

    6.4X10-3

    1.7X10-1

    Cm-246

    9.0

    2.4X102

    9.0X10-4

    2.4X10-2

    1.1X10-2

    3.1X10-1

    Cm-247 (a)

    3.0

    8.1X101

    1.0X10-3

    2.7X10-2

    3.4X10-6

    9.3X10-5

    Cm-248

    2.0X10-2

    5.4X10-1

    3.0X10-4

    8.1X10-3

    1.6X10-4

    4.2X10-3

    Co-55

    Cobalt (27)

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    1.1X105

    3.1X106

    Co-56

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    1.1X103

    3.0X104

    Co-57

    1.0X101

    2.7X102

    1.0X101

    2.7X102

    3.1X102

    8.4X103

    Co-58

    1.0

    2.7X101

    1.0

    2.7X101

    1.2X103

    3.2X104

    Co-58m

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    2.2X105

    5.9X106

    Co-60

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    4.2X101

    1.1X103

    Cr-51

    Chromium (24)

    3.0X101

    8.1X102

    3.0X101

    8.1X102

    3.4X103

    9.2X104

    Cs-129

    Cesium (55)

    4.0

    1.1X102

    4.0

    1.1X102

    2.8X104

    7.6X105

    Cs-131

    3.0X101

    8.1X102

    3.0X101

    8.1X102

    3.8X103

    1.0X105

    Cs-132

    1.0

    2.7X101

    1.0

    2.7X101

    5.7X103

    1.5X105

    Cs-134

    7.0X10-1

    1.9X101

    7.0X10-1

    1.9X101

    4.8X101

    1.3X103

    Cs-134m

    4.0X101

    1.1X103

    6.0X10-1

    1.6X101

    3.0X105

    8.0X106

    Cs-135

    4.0X101

    1.1X103

    1.0

    2.7X101

    4.3X10-5

    1.2X10-3

    Cs-136

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    2.7X103

    7.3X104

    Cs-137 (a)

    2.0

    5.4X101

    6.0X10-1

    1.6X101

    3.2

    8.7X101

    Cu-64

    Copper (29)

    6.0

    1.6X102

    1.0

    2.7X101

    1.4X105

    3.9X106

    Cu-67

    1.0X101

    2.7X102

    7.0X10-1

    1.9X101

    2.8X104

    7.6X105

    Dy-159

    Dysprosium (66)

    2.0X101

    5.4X102

    2.0X101

    5.4X102

    2.1X102

    5.7X103

    Dy-165

    9.0X10-1

    2.4X101

    6.0X10-1

    1.6X101

    3.0X105

    8.2X106

    Dy-166 (a)

    9.0X10-1

    2.4X101

    3.0X10-1

    8.1

    8.6X103

    2.3X105

    Er-169

    Erbium (68)

    4.0X101

    1.1X103

    1.0

    2.7X101

    3.1X103

    8.3X104

    Er-171

    8.0X10-1

    2.2X101

    5.0X10-1

    1.4X101

    9.0X104

    2.4X106

    Eu-147

    Europium (63)

    2.0

    5.4X101

    2.0

    5.4X101

    1.4X103

    3.7X104

    Eu-148

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    6.0X102

    1.6X104

    Eu-149

    2.0X101

    5.4X102

    2.0X101

    5.4X102

    3.5X102

    9.4X103

    Eu-150 (short lived)

    2.0

    5.4X101

    7.0X10-1

    1.9X101

    6.1X104

    1.6X106

    Eu-150 (long lived)

    7.0X10-1

    1.9X101

    7.0X10-1

    1.9X101

    6.1X104

    1.6X106

    Eu-152

    1.0

    2.7X101

    1.0

    2.7X101

    6.5

    1.8X102

    Eu-152m

    8.0X10-1

    2.2X101

    8.0X10-1

    2.2X101

    8.2X104

    2.2X106

    Eu-154

    9.0X10-1

    2.4X101

    6.0X10-1

    1.6X101

    9.8

    2.6X102

    Eu-155

    2.0X101

    5.4X102

    3.0

    8.1X101

    1.8X101

    4.9X102

    Eu-156

    7.0X10-1

    1.9X101

    7.0X10-1

    1.9X101

    2.0X103

    5.5X104

    F-18

    Fluorine (9)

    1.0

    2.7X101

    6.0X10-1

    1.6X101

    3.5X106

    9.5X107

    Fe-52 (a)

    Iron (26)

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    2.7X105

    7.3X106

    Fe-55

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    8.8X101

    2.4X103

    Fe-59

    9.0X10-1

    2.4X101

    9.0X10-1

    2.4X101

    1.8X103

    5.0X104

    Fe-60 (a)

    4.0X101

    1.1X103

    2.0X10-1

    5.4

    7.4X10-4

    2.0X10-2

    Ga-67

    Gallium (31)

    7.0

    1.9X102

    3.0

    8.1X101

    2.2X104

    6.0X105

    Ga-68

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    1.5X106

    4.1X107

    Ga-72

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    1.1X105

    3.1X106

    Gd-146 (a)

    Gadolinium (64)

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    6.9X102

    1.9X104

    Gd-148

    2.0X101

    5.4X102

    2.0X10-3

    5.4X10-2

    1.2

    3.2X101

    Gd-153

    1.0X101

    2.7X102

    9.0

    2.4X102

    1.3X102

    3.5X103

    Gd-159

    3.0

    8.1X101

    6.0X10-1

    1.6X101

    3.9X104

    1.1X106

    Ge-68 (a)

    Germanium (32)

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    2.6X102

    7.1X103

    Ge-71

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    5.8X103

    1.6X105

    Ge-77

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    1.3X105

    3.6X106

    Hf-172 (a)

    Hafnium (72)

    6.0X10-1

    1.6X101

    6.0X10-1

    1.6X101

    4.1X101

    1.1X103

    Hf-175

    3.0

    8.1X101

    3.0

    8.1X101

    3.9X102

    1.1X104

    Hf-181

    2.0

    5.4X101

    5.0X10-1

    1.4X101

    6.3X102

    1.7X104

    Hf-182

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    8.1X10-6

    2.2X10-4

    Hg-194 (a)

    Mercury (80)

    1.0

    2.7X101

    1.0

    2.7X101

    1.3X10-1

    3.5

    Hg-195m (a)

    3.0

    8.1X101

    7.0X10-1

    1.9X101

    1.5X104

    4.0X105

    Hg-197

    2.0X101

    5.4X102

    1.0X101

    2.7X102

    9.2X103

    2.5X105

    Hg-197m

    1.0X101

    2.7X102

    4.0X10-1

    1.1X101

    2.5X104

    6.7X105

    Hg-203

    5.0

    1.4X102

    1.0

    2.7X101

    5.1X102

    1.4X104

    Ho-166

    Holmium (67)

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    2.6X104

    7.0X105

    Ho-166m

    6.0X10-1

    1.6X101

    5.0X10-1

    1.4X101

    6.6X10-2

    1.8

    I-123

    Iodine (53)

    6.0

    1.6X102

    3.0

    8.1X101

    7.1X104

    1.9X106

    I-124

    1.0

    2.7X101

    1.0

    2.7X101

    9.3X103

    2.5X105

    I-125

    2.0X101

    5.4X102

    3.0

    8.1X101

    6.4X102

    1.7X104

    I-126

    2.0

    5.4X101

    1.0

    2.7X101

    2.9X103

    8.0X104

    I-129

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    6.5X10-6

    1.8X10-4

    I-131

    3.0

    8.1X101

    7.0X10-1

    1.9X101

    4.6X103

    1.2X105

    I-132

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    3.8X105

    1.0X107

    I-133

    7.0X10-1

    1.9X101

    6.0X10-1

    1.6X101

    4.2X104

    1.1X106

    I-134

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    9.9X105

    2.7X107

    I-135 (a)

    6.0X10-1

    1.6X101

    6.0X10-1

    1.6X101

    1.3X105

    3.5X106

    In-111

    Indium (49)

    3.0

    8.1X101

    3.0

    8.1X101

    1.5X104

    4.2X105

    In-113m

    4.0

    1.1X102

    2.0

    5.4X101

    6.2X105

    1.7X107

    In-114m (a)

    1.0X101

    2.7X102

    5.0X10-1

    1.4X101

    8.6X102

    2.3X104

    In-115m

    7.0

    1.9X102

    1.0

    2.7X101

    2.2X105

    6.1X106

    Ir-189 (a)

    Iridium (77)

    1.0X101

    2.7X102

    1.0X101

    2.7X102

    1.9X103

    5.2X104

    Ir-190

    7.0X10-1

    1.9X101

    7.0X10-1

    1.9X101

    2.3X103

    6.2X104

    Ir-192 (c)

    1.0

    2.7X101

    6.0X10-1

    1.6X101

    3.4X102

    9.2X103

    Ir-194

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    3.1X104

    8.4X105

    K-40

    Potassium (19)

    9.0X10-1

    2.4X101

    9.0X10-1

    2.4X101

    2.4X10-7

    6.4X10-6

    K-42

    2.0X10-1

    5.4

    2.0X10-1

    5.4

    2.2X105

    6.0X106

    K-43

    7.0X10-1

    1.9X101

    6.0X10-1

    1.6X101

    1.2X105

    3.3X106

    Kr-81

    Krypton (36)

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    7.8X10-4

    2.1X10-2

    Kr-85

    1.0X101

    2.7X102

    1.0X101

    2.7X102

    1.5X101

    3.9X102

    Kr-85m

    8.0

    2.2X102

    3.0

    8.1X101

    3.0X105

    8.2X106

    Kr-87

    2.0X10-1

    5.4

    2.0X10-1

    5.4

    1.0X106

    2.8X107

    La-137

    Lanthanum (57)

    3.0X101

    8.1X102

    6.0

    1.6X102

    1.6X10-3

    4.4X10-2

    La-140

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    2.1X104

    5.6X105

    Lu-172

    Lutetium (71)

    6.0X10-1

    1.6X101

    6.0X10-1

    1.6X101

    4.2X103

    1.1X105

    Lu-173

    8.0

    2.2X102

    8.0

    2.2X102

    5.6X101

    1.5X103

    Lu-174

    9.0

    2.4X102

    9.0

    2.4X102

    2.3X101

    6.2X102

    Lu-174m

    2.0X101

    5.4X102

    1.0X101

    2.7X102

    2.0X102

    5.3X103

    Lu-177

    3.0X101

    8.1X102

    7.0X10-1

    1.9X101

    4.1X103

    1.1X105

    Mg-28 (a)

    Magnesium (12)

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    2.0X105

    5.4X106

    Mn-52

    Manganese (25)

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    1.6X104

    4.4X105

    Mn-53

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    6.8X10-5

    1.8X10-3

    Mn-54

    1.0

    2.7X101

    1.0

    2.7X101

    2.9X102

    7.7X103

    Mn-56

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    8.0X105

    2.2X107

    Mo-93

    Molybdenum (42)

    4.0X101

    1.1X103

    2.0X101

    5.4X102

    4.1X10-2

    1.1

    Mo-99 (a) (i)

    1.0

    2.7X101

    6.0X10-1

    1.6X101

    1.8X104

    4.8X105

    N-13

    Nitrogen (7)

    9.0X10-1

    2.4X101

    6.0X10-1

    1.6X101

    5.4X107

    1.5X109

    Na-22

    Sodium (11)

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    2.3X102

    6.3X103

    Na-24

    2.0X10-1

    5.4

    2.0X10-1

    5.4

    3.2X105

    8.7X106

    Nb-93m

    Niobium (41)

    4.0X101

    1.1X103

    3.0X101

    8.1X102

    8.8

    2.4X102

    Nb-94

    7.0X10-1

    1.9X101

    7.0X10-1

    1.9X101

    6.9X10-3

    1.9X10-1

    Nb-95

    1.0

    2.7X101

    1.0

    2.7X101

    1.5X103

    3.9X104

    Nb-97

    9.0X10-1

    2.4X101

    6.0X10-1

    1.6X101

    9.9X105

    2.7X107

    Nd-147

    Neodymium (60)

    6.0

    1.6X102

    6.0X10-1

    1.6X101

    3.0X103

    8.1X104

    Nd-149

    6.0X10-1

    1.6X101

    5.0X10-1

    1.4X101

    4.5X105

    1.2X107

    Ni-59

    Nickel (28)

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    3.0X10-3

    8.0X10-2

    Ni-63

    4.0X101

    1.1X103

    3.0X101

    8.1X102

    2.1

    5.7X101

    Ni-65

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    7.1X105

    1.9X107

    Np-235

    Neptunium (93)

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    5.2X101

    1.4X103

    Np-236 (short-lived)

    2.0X101

    5.4X102

    2.0

    5.4X101

    4.7X10-4

    1.3X10-2

    Np-236 (long-lived)

    9.0X100

    2.4X102

    2.0X10-2

    5.4X10-1

    4.7X10-4

    1.3X10-2

    Np-237

    2.0X101

    5.4X102

    2.0X10-3

    5.4X10-2

    2.6X10-5

    7.1X10-4

    Np-239

    7.0

    1.9X102

    4.0X10-1

    1.1X101

    8.6X103

    2.3X105

    Os-185

    Osmium (76)

    1.0

    2.7X101

    1.0

    2.7X101

    2.8X102

    7.5X103

    Os-191

    1.0X101

    2.7X102

    2.0

    5.4X101

    1.6X103

    4.4X104

    Os-191m

    4.0X101

    1.1X103

    3.0X101

    8.1X102

    4.6X104

    1.3X106

    Os-193

    2.0

    5.4X101

    6.0X10-1

    1.6X101

    2.0X104

    5.3X105

    Os-194 (a)

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    1.1X101

    3.1X102

    P-32

    Phosphorus (15)

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    1.1X104

    2.9X105

    P-33

    4.0X101

    1.1X103

    1.0

    2.7X101

    5.8X103

    1.6X105

    Pa-230 (a)

    Protactinium (91)

    2.0

    5.4X101

    7.0X10-2

    1.9

    1.2X103

    3.3X104

    Pa-231

    4.0

    1.1X102

    4.0X10-4

    1.1X10-2

    1.7X10-3

    4.7X10-2

    Pa-233

    5.0

    1.4X102

    7.0X10-1

    1.9X101

    7.7X102

    2.1X104

    Pb-201

    Lead (82)

    1.0

    2.7X101

    1.0

    2.7X101

    6.2X104

    1.7X106

    Pb-202

    4.0X101

    1.1X103

    2.0X101

    5.4X102

    1.2X10-4

    3.4X10-3

    Pb-203

    4.0

    1.1X102

    3.0

    8.1X101

    1.1X104

    3.0X105

    Pb-205

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    4.5X10-6

    1.2X10-4

    Pb-210 (a)

    1.0

    2.7X101

    5.0X10-2

    1.4

    2.8

    7.6X101

    Pb-212 (a)

    7.0X10-1

    1.9X101

    2.0X10-1

    5.4

    5.1X104

    1.4X106

    Pd-103 (a)

    Palladium (46)

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    2.8X103

    7.5X104

    Pd-107

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    1.9X10-5

    5.1X10-4

    Pd-109

    2.0

    5.4X101

    5.0X10-1

    1.4X101

    7.9X104

    2.1X106

    Pm-143

    Promethium (61)

    3.0

    8.1X101

    3.0

    8.1X101

    1.3X102

    3.4X103

    Pm-144

    7.0X10-1

    1.9X101

    7.0X10-1

    1.9X101

    9.2X101

    2.5X103

    Pm-145

    3.0X101

    8.1X102

    1.0X101

    2.7X102

    5.2

    1.4X102

    Pm-147

    4.0X101

    1.1X103

    2.0

    5.4X101

    3.4X101

    9.3X102

    Pm-148m (a)

    8.0X10-1

    2.2X101

    7.0X10-1

    1.9X101

    7.9X102

    2.1X104

    Pm-149

    2.0

    5.4X101

    6.0X10-1

    1.6X101

    1.5X104

    4.0X105

    Pm-151

    2.0

    5.4X101

    6.0X10-1

    1.6X101

    2.7X104

    7.3X105

    Po-210

    Polonium (84)

    4.0X101

    1.1X103

    2.0X10-2

    5.4X10-1

    1.7X102

    4.5X103

    Pr-142

    Praseodymium (59)

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    4.3X104

    1.2X106

    Pr-143

    3.0

    8.1X101

    6.0X10-1

    1.6X101

    2.5X103

    6.7X104

    Pt-188 (a)

    Platinum (78)

    1.0

    2.7X101

    8.0X10-1

    2.2X101

    2.5X103

    6.8X104

    Pt-191

    4.0

    1.1X102

    3.0

    8.1X101

    8.7X103

    2.4X105

    Pt-193

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    1.4

    3.7X101

    Pt-193m

    4.0X101

    1.1X103

    5.0X10-1

    1.4X101

    5.8X103

    1.6X105

    Pt-195m

    1.0X101

    2.7X102

    5.0X10-1

    1.4X101

    6.2X103

    1.7X105

    Pt-197

    2.0X101

    5.4X102

    6.0X10-1

    1.6X101

    3.2X104

    8.7X105

    Pt-197m

    1.0X101

    2.7X102

    6.0X10-1

    1.6X101

    3.7X105

    1.0X107

    Pu-236

    Plutonium (94)

    3.0X101

    8.1X102

    3.0X10-3

    8.1X10-2

    2.0X101

    5.3X102

    Pu-237

    2.0X101

    5.4X102

    2.0X101

    5.4X102

    4.5X102

    1.2X104

    Pu-238

    1.0X101

    2.7X102

    1.0X10-3

    2.7X10-2

    6.3X10-1

    1.7X101

    Pu-239

    1.0X101

    2.7X102

    1.0X10-3

    2.7X10-2

    2.3X10-3

    6.2X10-2

    Pu-240

    1.0X101

    2.7X102

    1.0X10-3

    2.7X10-2

    8.4X10-3

    2.3X10-1

    Pu-241 (a)

    4.0X101

    1.1X103

    6.0X10-2

    1.6

    3.8

    1.0X102

    Pu-242

    1.0X101

    2.7X102

    1.0X10-3

    2.7X10-2

    1.5X10-4

    3.9X10-3

    Pu-244 (a)

    4.0X10-1

    1.1X101

    1.0X10-3

    2.7X10-2

    6.7X10-7

    1.8X10-5

    Ra-223 (a)

    Radium (88)

    4.0X10-1

    1.1X101

    7.0X10-3

    1.9X10-1

    1.9X103

    5.1X104

    Ra-224 (a)

    4.0X10-1

    1.1X101

    2.0X10-2

    5.4X10-1

    5.9X103

    1.6X105

    Ra-225 (a)

    2.0X10-1

    5.4

    4.0X10-3

    1.1X10-1

    1.5X103

    3.9X104

    Ra-226 (a)

    2.0X10-1

    5.4

    3.0X10-3

    8.1X10-2

    3.7X10-2

    1.0

    Ra-228 (a)

    6.0X10-1

    1.6X101

    2.0X10-2

    5.4X10-1

    1.0X101

    2.7X102

    Rb-81

    Rubidium (37)

    2.0

    5.4X101

    8.0X10-1

    2.2X101

    3.1X105

    8.4X106

    Rb-83 (a)

    2.0

    5.4X101

    2.0

    5.4X101

    6.8X102

    1.8X104

    Rb-84

    1.0

    2.7X101

    1.0

    2.7X101

    1.8X103

    4.7X104

    Rb-86

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    3.0X103

    8.1X104

    Rb-87

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    3.2X10-9

    8.6X10-8

    Rb(nat)

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    6.7X106

    1.8X108

    Re-184

    Rhenium (75)

    1.0

    2.7X101

    1.0

    2.7X101

    6.9X102

    1.9X104

    Re-184m

    3.0

    8.1X101

    1.0

    2.7X101

    1.6X102

    4.3X103

    Re-186

    2.0

    5.4X101

    6.0X10-1

    1.6X101

    6.9X103

    1.9X105

    Re-187

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    1.4X10-9

    3.8X10-8

    Re-188

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    3.6X104

    9.8X105

    Re-189 (a)

    3.0

    8.1X101

    6.0X10-1

    1.6X101

    2.5X104

    6.8X105

    Re(nat)

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    0.0

    2.4X10-8

    Rh-99

    Rhodium (45)

    2.0

    5.4X101

    2.0

    5.4X101

    3.0X103

    8.2X104

    Rh-101

    4.0

    1.1X102

    3.0

    8.1X101

    4.1X101

    1.1X103

    Rh-102

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    4.5X101

    1.2X103

    Rh-102m

    2.0

    5.4X101

    2.0

    5.4X101

    2.3X102

    6.2X103

    Rh-103m

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    1.2X106

    3.3X107

    Rh-105

    1.0X101

    2.7X102

    8.0X10-1

    2.2X101

    3.1X104

    8.4X105

    Rn-222 (a)

    Radon (86)

    3.0X10-1

    8.1

    4.0X10-3

    1.1X10-1

    5.7X103

    1.5X105

    Ru-97

    Ruthenium (44)

    5.0

    1.4X102

    5.0

    1.4X102

    1.7X104

    4.6X105

    Ru-103 (a)

    2.0

    5.4X101

    2.0

    5.4X101

    1.2X103

    3.2X104

    Ru-105

    1.0

    2.7X101

    6.0X10-1

    1.6X101

    2.5X105

    6.7X106

    Ru-106 (a)

    2.0X10-1

    5.4

    2.0X10-1

    5.4

    1.2X102

    3.3X103

    S-35

    Sulphur (16)

    4.0X101

    1.1X103

    3.0

    8.1X101

    1.6X103

    4.3X104

    Sb-122

    Antimony (51)

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    1.5X104

    4.0X105

    Sb-124

    6.0X10-1

    1.6X101

    6.0X10-1

    1.6X101

    6.5X102

    1.7X104

    Sb-125

    2.0

    5.4X101

    1.0

    2.7X101

    3.9X101

    1.0X103

    Sb-126

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    3.1X103

    8.4X104

    Sc-44

    Scandium (21)

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    6.7X105

    1.8X107

    Sc-46

    5.0X10-1

    1.4X101

    5.0X10-1

    1.4X101

    1.3X103

    3.4X104

    Sc-47

    1.0X101

    2.7X102

    7.0X10-1

    1.9X101

    3.1X104

    8.3X105

    Sc-48

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    5.5X104

    1.5X106

    Se-75

    Selenium (34)

    3.0

    8.1X101

    3.0

    8.1X101

    5.4X102

    1.5X104

    Se-79

    4.0X101

    1.1X103

    2.0

    5.4X101

    2.6X10-3

    7.0X10-2

    Si-31

    Silicon (14)

    6.0X10-1

    1.6X101

    6.0X10-1

    1.6X101

    1.4X106

    3.9X107

    Si-32

    4.0X101

    1.1X103

    5.0X10-1

    1.4X101

    3.9

    1.1X102

    Sm-145

    Samarium (62)

    1.0X101

    2.7X102

    1.0X101

    2.7X102

    9.8X101

    2.6X103

    Sm-147

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    8.5X10-1

    2.3X10-8

    Sm-151

    4.0X101

    1.1X103

    1.0X101

    2.7X102

    9.7X10-1

    2.6X101

    Sm-153

    9.0

    2.4X102

    6.0X10-1

    1.6X101

    1.6X104

    4.4X105

    Sn-113 (a)

    Tin (50)

    4.0

    1.1X102

    2.0

    5.4X101

    3.7X102

    1.0X104

    Sn-117m

    7.0

    1.9X102

    4.0X10-1

    1.1X101

    3.0X103

    8.2X104

    Sn-119m

    4.0X101

    1.1X103

    3.0X101

    8.1X102

    1.4X102

    3.7X103

    Sn-121m (a)

    4.0X101

    1.1X103

    9.0X10-1

    2.4X101

    2.0

    5.4X101

    Sn-123

    8.0X10-1

    2.2X101

    6.0X10-1

    1.6X101

    3.0X102

    8.2X103

    Sn-125

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    4.0X103

    1.1X105

    Sn-126 (a)

    6.0X10-1

    1.6X101

    4.0X10-1

    1.1X101

    1.0X10-3

    2.8X10-2

    Sr-82 (a)

    Strontium (38)

    2.0X10-1

    5.4

    2.0X10-1

    5.4

    2.3X103

    6.2X104

    Sr-85

    2.0

    5.4X101

    2.0

    5.4X101

    8.8X102

    2.4X104

    Sr-85m

    5.0

    1.4X102

    5.0

    1.4X102

    1.2X106

    3.3X107

    Sr-87m

    3.0

    8.1X101

    3.0

    8.1X101

    4.8X105

    1.3X107

    Sr-89

    6.0X10-1

    1.6X101

    6.0X10-1

    1.6X101

    1.1X103

    2.9X104

    Sr-90 (a)

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    5.1

    1.4X102

    Sr-91 (a)

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    1.3X105

    3.6X106

    Sr-92 (a)

    1.0

    2.7X101

    3.0X10-1

    8.1

    4.7X105

    1.3X107

    T(H-3)

    Tritium (1)

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    3.6X102

    9.7X103

    Ta-178 (long-lived)

    Tantalum (73)

    1.0

    2.7X101

    8.0X10-1

    2.2X101

    4.2X106

    1.1X108

    Ta-179

    3.0X101

    8.1X102

    3.0X101

    8.1X102

    4.1X101

    1.1X103

    Ta-182

    9.0X10-1

    2.4X101

    5.0X10-1

    1.4X101

    2.3X102

    6.2X103

    Tb-157

    Terbium (65)

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    5.6X10-1

    1.5X101

    Tb-158

    1.0

    2.7X101

    1.0

    2.7X101

    5.6X10-1

    1.5X101

    Tb-160

    1.0

    2.7X101

    6.0X10-1

    1.6X101

    4.2X102

    1.1X104

    Tc-95m (a)

    Technetium (43)

    2.0

    5.4X101

    2.0

    5.4X101

    8.3X102

    2.2X104

    Tc-96

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    1.2X104

    3.2X105

    Tc-96m (a)

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    1.4X106

    3.8X107

    Tc-97

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    5.2X10-5

    1.4X10-3

    Tc-97m

    4.0X101

    1.1X103

    1.0

    2.7X101

    5.6X102

    1.5X104

    Tc-98

    8.0X10-1

    2.2X101

    7.0X10-1

    1.9X101

    3.2X10-5

    8.7X10-4

    Tc-99

    4.0X101

    1.1X103

    9.0X10-1

    2.4X101

    6.3X10-4

    1.7X10-2

    Tc-99m

    1.0X101

    2.7X102

    4.0

    1.1X102

    1.9X105

    5.3X106

    Te-121

    Tellurium (52)

    2.0

    5.4X101

    2.0

    5.4X101

    2.4X103

    6.4X104

    Te-121m

    5.0

    1.4X102

    3.0

    8.1X101

    2.6X102

    7.0X103

    Te-123m

    8.0

    2.2X102

    1.0

    2.7X101

    3.3X102

    8.9X103

    Te-125m

    2.0X101

    5.4X102

    9.0X10-1

    2.4X101

    6.7X102

    1.8X104

    Te-127

    2.0X101

    5.4X102

    7.0X10-1

    1.9X101

    9.8X104

    2.6X106

    Te-127m (a)

    2.0X101

    5.4X102

    5.0X10-1

    1.4X101

    3.5X102

    9.4X103

    Te-129

    7.0X10-1

    1.9X101

    6.0X10-1

    1.6X101

    7.7X105

    2.1X107

    Te-129m (a)

    8.0X10-1

    2.2X101

    4.0X10-1

    1.1X101

    1.1X103

    3.0X104

    Te-131m (a)

    7.0X10-1

    1.9X101

    5.0X10-1

    1.4X101

    3.0X104

    8.0X105

    Te-132 (a)

    5.0X10-1

    1.4X101

    4.0X10-1

    1.1X101

    1.1X104

    3.0X105

    Th-227

    Thorium (90)

    1.0X101

    2.7X102

    5.0X10-3

    1.4X10-1

    1.1X103

    3.1X104

    Th-228 (a)

    5.0X10-1

    1.4X101

    1.0X10-3

    2.7X10-2

    3.0X101

    8.2X102

    Th-229

    5.0

    1.4X102

    5.0X10-4

    1.4X10-2

    7.9X10-3

    2.1X10-1

    Th-230

    1.0X101

    2.7X102

    1.0X10-3

    2.7X10-2

    7.6X10-4

    2.1X10-2

    Th-231

    4.0X101

    1.1X103

    2.0X10-2

    5.4X10-1

    2.0X104

    5.3X105

    Th-232

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    4.0X10-9

    1.1X10-7

    Th-234 (a)

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    8.6X102

    2.3X104

    Th(nat)

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    8.1X10-9

    2.2X10-7

    Ti-44 (a)

    Titanium (22)

    5.0X10-1

    1.4X101

    4.0X10-1

    1.1X101

    6.4

    1.7X102

    Tl-200

    Thallium (81)

    9.0X10-1

    2.4X101

    9.0X10-1

    2.4X101

    2.2X104

    6.0X105

    Tl-201

    1.0X101

    2.7X102

    4.0

    1.1X102

    7.9X103

    2.1X105

    Tl-202

    2.0

    5.4X101

    2.0

    5.4X101

    2.0X103

    5.3X104

    Tl-204

    1.0X101

    2.7X102

    7.0X10-1

    1.9X101

    1.7X101

    4.6X102

    Tm-167

    Thulium (69)

    7.0

    1.9X102

    8.0X10-1

    2.2X101

    3.1X103

    8.5X104

    Tm-170

    3.0

    8.1X101

    6.0X10-1

    1.6X101

    2.2X102

    6.0X103

    Tm-171

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    U-230 (fast lung absorption) (a)(d)

    Uranium (92)

    4.0X101

    1.1X103

    1.0X10-1

    2.7

    1.0X103

    2.7X104

    U-230 (medium lung absorption) (a)(e)

    4.0X101

    1.1X103

    4.0X10-3

    1.1X10-1

    1.0X103

    2.7X104

    U-230 (slow lung absorption) (a)(f)

    3.0X101

    8.1X102

    3.0X10-3

    8.1X10-2

    1.0X103

    2.7X104

    U-232 (fast lung absorption) (d)

    4.0X101

    1.1X103

    1.0X10-2

    2.7X10-1

    8.3X10-1

    2.2X101

    U-232 (medium lung absorption) (e)

    4.0X101

    1.1X103

    7.0X10-3

    1.9X10-1

    8.3X10-1

    2.2X101

    U-232 (slow lung absorption) (f)

    1.0X101

    2.7X102

    1.0X10-3

    2.7X10-2

    8.3X10-1

    2.2X101

    U-233 (fast lung absorption) (d)

    4.0X101

    1.1X103

    9.0X10-2

    2.4

    3.6X10-4

    9.7X10-3

    U-233 (medium lung absorption) (e)

    4.0X101

    1.1X103

    2.0X10-2

    5.4X10-1

    3.6X10-4

    9.7X10-3

    U-233 (slow lung absorption) (f)

    4.0X101

    1.1X103

    6.0X10-3

    1.6X10-1

    3.6X10-4

    9.7X10-3

    U-234 (fast lung absorption) (d)

    4.0X101

    1.1X103

    9.0X10-2

    2.4

    2.3X10-4

    6.2X10-3

    U-234 (medium lung absorption) (e)

    4.0X101

    1.1X103

    2.0X10-2

    5.4X10-1

    2.3X10-4

    6.2X10-3

    U-234 (slow lung absorption) (f)

    4.0X101

    1.1X103

    6.0X10-3

    1.6X10-1

    2.3X10-4

    6.2X10-3

    U-235 (all lung absorption types) (a),(d),(e),(f)

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    8.0X10-8

    2.2X10-6

    U-236 (fast lung absorption) (d)

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    2.4X10-6

    6.5X10-5

    U-236 (medium lung absorption) (e)

    4.0X101

    1.1X103

    2.0X10-2

    5.4X10-1

    2.4X10-6

    6.5X10-5

    U-236 (slow lung absorption) (f)

    4.0X101

    1.1X103

    6.0X10-3

    1.6X10-1

    2.4X10-6

    6.5X10-5

    U-238 (all lung absorption types) (d),(e),(f)

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    1.2X10-8

    3.4X10-7

    U (nat)

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    2.6X10-8

    7.1X10-7

    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-3

    V-48

    Vanadium (23)

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    6.3X103

    1.7X105

    V-49

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    3.0X102

    8.1X103

    W-178 (a)

    Tungsten (74)

    9.0

    2.4X102

    5.0

    1.4X102

    1.3X103

    3.4X104

    W-181

    3.0X101

    8.1X102

    3.0X101

    8.1X102

    2.2X102

    6.0X103

    W-185

    4.0X101

    1.1X103

    8.0X10-1

    2.2X101

    3.5X102

    9.4X103

    W-187

    2.0

    5.4X101

    6.0X10-1

    1.6X101

    2.6X104

    7.0X105

    W-188 (a)

    4.0X10-1

    1.1X101

    3.0X10-1

    8.1

    3.7X102

    1.0X104

    Xe-122 (a)

    Xenon (54)

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    4.8X104

    1.3X106

    Xe-123

    2.0

    5.4X101

    7.0X10-1

    1.9X101

    4.4X105

    1.2X10

    Xe-127

    4.0

    1.1X102

    2.0

    5.4X101

    1.0X103

    2.8X104

    Xe-131m

    4.0X101

    1.1X103

    4.0X101

    1.1X103

    3.1X103

    8.4X104

    Xe-133

    2.0X101

    5.4X102

    1.0X101

    2.7X102

    6.9X103

    1.9X105

    Xe-135

    3.0

    8.1X101

    2.0

    5.4X101

    9.5X104

    2.6X106

    Y-87 (a)

    Yttrium (39)

    1.0

    2.7X101

    1.0

    2.7X101

    1.7X104

    4.5X105

    Y-88

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    5.2X102

    1.4X104

    Y-90

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    2.0X104

    5.4X105

    Y-91

    6.0X10-1

    1.6X101

    6.0X10-1

    1.6X101

    9.1X102

    2.5X104

    Y-91m

    2.0

    5.4X101

    2.0

    5.4X101

    1.5X106

    4.2X10

    Y-92

    2.0X10-1

    5.4

    2.0X10-1

    5.4

    3.6X105

    9.6X106

    Y-93

    3.0X10-1

    8.1

    3.0X10-1

    8.1

    1.2X105

    3.3X106

    Yb-169

    Ytterbium (70)

    4.0

    1.1X102

    1.0

    2.7X101

    8.9X102

    2.4X104

    Yb-175

    3.0X101

    8.1X102

    9.0X10-1

    2.4X101

    6.6X103

    1.8X105

    Zn-65

    Zinc (30)

    2.0

    5.4X101

    2.0

    5.4X101

    3.0X102

    8.2X103

    Zn-69

    3.0

    8.1X101

    6.0X10-1

    1.6X101

    1.8X106

    4.9X10

    Zn-69m (a)

    3.0

    8.1X101

    6.0X10-1

    1.6X101

    1.2X105

    3.3X106

    Zr-88

    Zirconium (40)

    3.0

    8.1X101

    3.0

    8.1X101

    6.6X102

    1.8X104

    Zr-93

    Unlimited

    Unlimited

    Unlimited

    Unlimited

    9.3X10

    2.5X10

    Zr-95 (a)

    2.0

    5.4X101

    8.0X10-1

    2.2X101

    7.9X102

    2.1X104

    Zr-97 (a)

    4.0X10-1

    1.1X101

    4.0X10-1

    1.1X101

    7.1X104

    1.9X106

    aA1 and/or A2 values include contributions from daughter nuclides with half-lives less than 10 days.
    bThe values of A1 and A2 in Curies (Ci) are approximate and for information only; the regulatory standard units are terabecquerels (TBq).
    cThe quantity 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.
    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.
    hA1 = 0.1 TBq (2.7 Ci) and A2 = 0.001 TBq (0.027 Ci) for Cf-252 for domestic use.
    iA2 = 0.74 TBq (20 Ci) for Mo-99 for domestic use.

    G. Table 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)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Ac-227

    1.0X10-1

    2.7X10-12

    1.0X103

    2.7X10-8

    Ac-228

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Ag-105

    Silver (47)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ag-108m (b)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Ag-110m

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Ag-111

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Al-26

    Aluminum (13)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Am-241

    Americium (95)

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Am-242m (b)

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Am-243 (b)

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Ar-37

    Argon (18)

    1.0X106

    2.7X10-5

    1.0X108

    2.7X10-3

    Ar-39

    1.0X107

    2.7X10-4

    1.0X104

    2.7X10-7

    Ar-41

    1.0X102

    2.7X10-9

    1.0X109

    2.7X10-2

    As-72

    Arsenic (33)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    As-73

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    As-74

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    As-76

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    As-77

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    At-211

    Astatine (85)

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Au-193

    Gold (79)

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Au-194

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Au-195

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Au-198

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Au-199

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ba-131

    Barium (56)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ba-133

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ba-133m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ba-140 (b)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Be-7

    Beryllium (4)

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Be-10

    1.0X104

    2.7X10-7

    1.0X106

    2.7X10-5

    Bi-205

    Bismuth (83)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Bi-206

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Bi-207

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Bi-210

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Bi-210m

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Bi-212 (b)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Bk-247

    Berkelium (97)

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Bk-249

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Br-76

    Bromine (35)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Br-77

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Br-82

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    C-11

    Carbon (6)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    C-14

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Ca-41

    Calcium (20)

    1.0X105

    2.7X10-6

    1.0X107

    2.7X10-4

    Ca-45

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Ca-47

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Cd-109

    Cadmium (48)

    1.0X104

    2.7X10-7

    1.0X106

    2.7X10-5

    Cd-113m

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Cd-115

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Cd-115m

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Ce-139

    Cerium (58)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ce-141

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Ce-143

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ce-144 (b)

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Cf-248

    Californium (98)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Cf-249

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Cf-250

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Cf-251

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Cf-252

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Cf-253

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Cf-254

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Cl-36

    Chlorine (17)

    1.0X104

    2.7X10-7

    1.0X106

    2.7X10-5

    Cl-38

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Cm-240

    Curium (96)

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Cm-241

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Cm-242

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Cm-243

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Cm-244

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Cm-245

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Cm-246

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Cm-247

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Cm-248

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Co-55

    Cobalt (27)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Co-56

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Co-57

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Co-58

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Co-58m

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Co-60

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Cr-51

    Chromium (24)

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Cs-129

    Cesium (55)

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Cs-131

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Cs-132

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Cs-134

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Cs-134m

    1.0X103

    2.7X10-8

    1.0X105

    2.7X10-6

    Cs-135

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Cs-136

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Cs-137 (b)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Cu-64

    Copper (29)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Cu-67

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Dy-159

    Dysprosium (66)

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Dy-165

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Dy-166

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Er-169

    Erbium (68)

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Er-171

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Eu-147

    Europium (63)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Eu-148

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Eu-149

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Eu-150 (short lived)

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Eu-150 (long lived)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Eu-152

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Eu-152m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Eu-154

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Eu-155

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Eu-156

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    F-18

    Fluorine (9)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Fe-52

    Iron (26)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Fe-55

    1.0X104

    2.7X10-7

    1.0X106

    2.7X10-5

    Fe-59

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Fe-60

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Ga-67

    Gallium (31)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ga-68

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Ga-72

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Gd-146

    Gadolinium (64)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Gd-148

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Gd-153

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Gd-159

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Ge-68

    Germanium (32)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Ge-71

    1.0X104

    2.7X10-7

    1.0X108

    2.7X10-3

    Ge-77

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Hf-172

    Hafnium (72)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Hf-175

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Hf-181

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Hf-182

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Hg-194

    Mercury (80)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Hg-195m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Hg-197

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Hg-197m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Hg-203

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Ho-166

    Holmium (67)

    1.0X103

    2.7X10-8

    1.0X105

    2.7X10-6

    Ho-166m

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    I-123

    Iodine (53)

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    I-124

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    I-125

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    I-126

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    I-129

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    I-131

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    I-132

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    I-133

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    I-134

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    I-135

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    In-111

    Indium (49)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    In-113m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    In-114m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    In-115m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ir-189

    Iridium (77)

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Ir-190

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Ir-192

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Ir-194

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    K-40

    Potassium (19)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    K-42

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    K-43

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Kr-81

    Krypton (36)

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Kr-85

    1.0X105

    2.7X10-6

    1.0X104

    2.7X10-7

    Kr-85m

    1.0X103

    2.7X10-8

    1.0X1010

    2.7X10-1

    Kr-87

    1.0X102

    2.7X10-9

    1.0X109

    2.7X10-2

    La-137

    Lanthanum (57)

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    La-140

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Lu-172

    Lutetium (71)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Lu-173

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Lu-174

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Lu-174m

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Lu-177

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Mg-28

    Magnesium (12)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Mn-52

    Manganese (25)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Mn-53

    1.0X104

    2.7X10-7

    1.0X109

    2.7X10-2

    Mn-54

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Mn-56

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Mo-93

    Molybdenum (42)

    1.0X103

    2.7X10-8

    1.0X108

    2.7X10-3

    Mo-99

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    N-13

    Nitrogen (7)

    1.0X102

    2.7X10-9

    1.0X109

    2.7X10-2

    Na-22

    Sodium (11)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Na-24

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Nb-93m

    Niobium (41)

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Nb-94

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Nb-95

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Nb-97

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Nd-147

    Neodymium (60)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Nd-149

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ni-59

    Nickel (28)

    1.0X104

    2.7X10-7

    1.0X108

    2.7X10-3

    Ni-63

    1.0X105

    2.7X10-6

    1.0X108

    2.7X10-3

    Ni-65

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Np-235

    Neptunium (93)

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Np-236 (short-lived)

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Np-236 (long-lived)

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Np-237 (b)

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Np-239

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Os-185

    Osmium (76)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Os-191

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Os-191m

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Os-193

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Os-194

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    P-32

    Phosphorus (15)

    1.0X103

    2.7X10-8

    1.0X105

    2.7X10-6

    P-33

    1.0X105

    2.7X10-6

    1.0X108

    2.7X10-3

    Pa-230

    Protactinium (91)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Pa-231

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Pa-233

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Pb-201

    Lead (82)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Pb-202

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Pb-203

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Pb-205

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Pb-210 (b)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Pb-212 (b)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Pd-103

    Palladium (46)

    1.0X103

    2.7X10-8

    1.0X108

    2.7X10-3

    Pd-107

    1.0X105

    2.7X10-6

    1.0X108

    2.7X10-3

    Pd-109

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Pm-143

    Promethium (61)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Pm-144

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Pm-145

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Pm-147

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Pm-148m

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Pm-149

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Pm-151

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Po-210

    Polonium (84)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Pr-142

    Praseodymium (59)

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Pr-143

    1.0X104

    2.7X10-7

    1.0X106

    2.7X10-5

    Pt-188

    Platinum (78)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Pt-191

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Pt-193

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Pt-193m

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Pt-195m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Pt-197

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Pt-197m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Pu-236

    Plutonium (94)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Pu-237

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Pu-238

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Pu-239

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Pu-240

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Pu-241

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Pu-242

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Pu-244

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Ra-223 (b)

    Radium (88)

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Ra-224 (b)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Ra-225

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Ra-226 (b)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Ra-228 (b)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Rb-81

    Rubidium (37)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Rb-83

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Rb-84

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Rb-86

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Rb-87

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Rb(nat)

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Re-184

    Rhenium (75)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Re-184m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Re-186

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Re-187

    1.0X106

    2.7X10-5

    1.0X109

    2.7X10-2

    Re-188

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Re-189

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Re(nat)

    1.0X106

    2.7X10-5

    1.0X109

    2.7X10-2

    Rh-99

    Rhodium (45)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Rh-101

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Rh-102

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Rh-102m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Rh-103m

    1.0X104

    2.7X10-7

    1.0X108

    2.7X10-3

    Rh-105

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Rn-222 (b)

    Radon (86)

    1.0X101

    2.7X10-10

    1.0X108

    2.7X10-3

    Ru-97

    Ruthenium (44)

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Ru-103

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Ru-105

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Ru-106 (b)

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    S-35

    Sulphur (16)

    1.0X105

    2.7X10-6

    1.0X108

    2.7X10-3

    Sb-122

    Antimony (51)

    1.0X102

    2.7X10-9

    1.0X104

    2.7X10-7

    Sb-124

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Sb-125

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Sb-126

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Sc-44

    Scandium (21)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Sc-46

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Sc-47

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Sc-48

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Se-75

    Selenium (34)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Se-79

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Si-31

    Silicon (14)

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Si-32

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Sm-145

    Samarium (62)

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Sm-147

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Sm-151

    1.0X104

    2.7X10-7

    1.0X108

    2.7X10-3

    Sm-153

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Sn-113

    Tin (50)

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Sn-117m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Sn-119m

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Sn-121m

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Sn-123

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Sn-125

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Sn-126

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Sr-82

    Strontium (38)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Sr-85

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Sr-85m

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Sr-87m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Sr-89

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Sr-90 (b)

    1.0X102

    2.7X10-9

    1.0X104

    2.7X10-7

    Sr-91

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Sr-92

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    T(H-3)

    Tritium (1)

    1.0X106

    2.7X10-5

    1.0X109

    2.7X10-2

    Ta-178 (long-lived)

    Tantalum (73)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Ta-179

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Ta-182

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Tb-157

    Terbium (65)

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Tb-158

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Tb-160

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Tc-95m

    Technetium (43)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Tc-96

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Tc-96m

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Tc-97

    1.0X103

    2.7X10-8

    1.0X108

    2.7X10-3

    Tc-97m

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Tc-98

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Tc-99

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    Tc-99m

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Te-121

    Tellurium (52)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Te-121m

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Te-123m

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Te-125m

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Te-127

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Te-127m

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Te-129

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Te-129m

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Te-131m

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Te-132

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Th-227

    Thorium (90)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Th-228 (b)

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Th-229 (b)

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Th-230

    1.0

    2.7X10-11

    1.0X104

    2.7X10-7

    Th-231

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Th-232

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    Th-234 (b)

    1.0X103

    2.7X10-8

    1.0X105

    2.7X10-6

    Th (nat) (b)

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    Ti-44

    Titanium (22)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    Tl-200

    Thallium (81)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Tl-201

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Tl-202

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Tl-204

    1.0X104

    2.7X10-7

    1.0X104

    2.7X10-7

    Tm-167

    Thulium (69)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Tm-170

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Tm-171

    1.0X104

    2.7X10-7

    1.0X108

    2.7X10-3

    U-230 (fast lung absorption) (b),(d)

    Uranium (92)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    U-230 (medium lung absorption) (e)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    U-230 (slow lung absorption) (f)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    U-232 (fast lung absorption) (b),(d)

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    U-232 (medium lung absorption) (e)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    U-232 (slow lung absorption) (f)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    U-233 (fast lung absorption) (d)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    U-233 (medium lung absorption) (e)

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    U-233 (slow lung absorption) (f)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    U-234 (fast lung absorption) (d)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    U-234 (medium lung absorption) (e)

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    U-234 (slow lung absorption) (f)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    U-235 (all lung absorption types) (b),(d),(e),(f)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    U-236 (fast lung absorption) (d)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    U-236 (medium lung absorption) (e)

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    U-236 (slow lung absorption) (f)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    U-238 (all lung absorption types) (b),(d),(e),(f)

    1.0X101

    2.7X10-10

    1.0X104

    2.7X10-7

    U (nat) (b)

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    U (enriched to 20% or less) (g)

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    U (dep)

    1.0

    2.7X10-11

    1.0X103

    2.7X10-8

    V-48

    Vanadium (23)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    V-49

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    W-178

    Tungsten (74)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    W-181

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    W-185

    1.0X104

    2.7X10-7

    1.0X107

    2.7X10-4

    W-187

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    W-188

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Xe-122

    Xenon (54)

    1.0X102

    2.7X10-9

    1.0X109

    2.7X10-2

    Xe-123

    1.0X102

    2.7X10-9

    1.0X109

    2.7X10-2

    Xe-127

    1.0X103

    2.7X10-8

    1.0X105

    2.7X10-6

    Xe-131m

    1.0X104

    2.7X10-7

    1.0X104

    2.7X10-7

    Xe-133

    1.0X103

    2.7X10-8

    1.0X104

    2.7X10-7

    Xe-135

    1.0X103

    2.7X10-8

    1.0X1010

    2.7X10-1

    Y-87

    Yttrium (39)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Y-88

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Y-90

    1.0X103

    2.7X10-8

    1.0X105

    2.7X10-6

    Y-91

    1.0X103

    2.7X10-8

    1.0X106

    2.7X10-5

    Y-91m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Y-92

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Y-93

    1.0X102

    2.7X10-9

    1.0X105

    2.7X10-6

    Yb-169

    Ytterbium (70)

    1.0X102

    2.7X10-9

    1.0X107

    2.7X10-4

    Yb-175

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Zn-65

    Zinc (30)

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Zn-69

    1.0X104

    2.7X10-7

    1.0X106

    2.7X10-5

    Zn-69m

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Zr-88

    Zirconium (40)

    1.0X102

    2.7X10-9

    1.0X106

    2.7X10-5

    Zr-93 (b)

    1.0X103

    2.7X10-8

    1.0X107

    2.7X10-4

    Zr-95

    1.0X101

    2.7X10-10

    1.0X106

    2.7X10-5

    Zr-97 (b)

    1.0X101

    2.7X10-10

    1.0X105

    2.7X10-6

    a(Reserved)
    bParent nuclides and their progeny included in secular equilibrium are listed in the following:

    Sr-90

    Y-90

    Zr-93

    Nb-93m

    Zr-97

    Nb-97

    Ru-106

    Rh-106

    Cs-137

    Ba-137m

    Ce-134

    La-134

    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-220

    Po-216

    Rn-222

    Po-218, Pb-214, Bi-214, Po-214

    Ra-223

    Rn-219, Po-215, Pb-211, Bi-211, Tl-207

    Ra-224

    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-226

    Ra-222, Rn-218, Po-214

    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

    U-240

    Np-240m

    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.

    H. Table 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 x 10-1

    2.7 x 100

    2 x 10-2

    5.4 x 10-1

    1 x 101

    2.7 x10-10

    1 x 104

    2.7 x10-7

    Only alpha emitting
    radionuclides are known
    to be present

    2 x 10-1

    5.4 x 100

    9 x 10-5

    2.4 x 10-3

    1 x 10-1

    2.7 x10-12

    1 x 103

    2.7 x10-8

    No relevant data are available

    1 x 10-3

    2.7 x 10-2

    9 x 10-5

    2.4 x 10-3

    1 x 10-1

    2.7 x 10-12

    1 x 103

    2.7 x 10-8

    I. Table 4. Activity-Mass Relationships for Uranium.

    Uranium Enrichment1
    wt % U-235 present

    Specific Activity

    TBq/g

    Ci/g

    0.45

    1.8 x 10-8

    5.0 x 10-7

    0.72

    2.6 x 10-8

    7.1 x 10-7

    1

    2.8 x 10-8

    7.6 x 10-7

    1.5

    3.7 x 10-8

    1.0 x 10-6

    5

    1.0 x 10-7

    2.7 x 10-6

    10

    1.8 x 10-7

    4.8 x 10-6

    20

    3.7 x 10-7

    1.0 x 10-5

    35

    7.4 x 10-7

    2.0 x 10-5

    50

    9.3 x 10-7

    2.5 x 10-5

    90

    2.2 x 10-6

    5.8 x 10-5

    93

    2.6 x 10-6

    7.0 x 10-5

    95

    3.4 x 10-6

    9.1 x 10-5

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

Historical Notes

Derived from Volume 24, Issue 18, eff. June 12, 2008; amended, Virginia Register Volume 32, Issue 24, eff. August 25, 2016.

Statutory Authority

§ 32.1-229 of the Code of Virginia.