12 Va. Admin. Code § 5-481-3770 - Determination of A[1] and A[2]

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:

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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).

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

[SIGMA]B(i)/A2(i) [LESS THAN OR EQUAL TO]1

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

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

[SIGMA]B(i)\A1(i)+[SIGMA]C(j)\A2(j) [LESS THAN OR EQUAL TO] 1

Where B(i) is the activity of radionuclide i (i) as special form radioactive material, A1(i) is the A1 value for the 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).

4. 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).

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

Click here to view image

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).

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

Click here to view image

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).

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

Click here to view image

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 or 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 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 or the lowest [A] or A value, as appropriate, 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

2.4X101

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

1.0X10-1

2.7

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

1.0 (c)

2.7X101 (c)

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-79

Krypton (36)

4.0

1.1X102

2.0

5.4X101

4.2X104

1.1X106

Kr-81

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) (h)

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) (b),(d)

Uranium (92)

4.0X101

1.1X103

1.0X10-1

2.7

1.0X103

2.7X104

U-230 (medium lung absorption) (e)

4.0X101

1.1X103

4.0X10-3

1.1X10-1

1.0X103

2.7X104

U-230 (slow lung absorption) (f)

3.0X101

8.1X102

3.0X10-3

8.1X10-2

1.0X103

2.7X104

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

Unlimited

Unlimited

Unlimited

Unlimited

1.2X10-8

3.4X10-7

U (nat) (b)

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

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

4.0X10-1

1.1X101

3.0X10-1

8.1

3.7X102

1.0X104

Xe-122

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

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

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(b)

Unlimited

Unlimited

Unlimited

Unlimited

9.3X10

2.5X10

Zr-95

2.0

5.4X101

8.0X10-1

2.2X101

7.9X102

2.1X104

Zr-97 (b)

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, as listed in the following:

Mg-28

Ca-47

Ti-44

Fe-52

Fe-60

Zn-69m

Ge-68

Rb-83

Sr-82

Sr-90

Sr-91

Sr-92

Y-87

Zr-95

Zr-97

Mo-99

Tc-95m

Tc-96m

Ru-103

Ru-106

Pd-103

Ag-108m

Ag-110m

Cd-115

In-114m

Sn-113

Sn-121m

Sn-126

Te-127m

Te-129m

Te-131m

Te-132

I-135

Xe-122

Cs-137

Ba-131

Ba-140

Ce-144

Pm-148m

Gd-146

Dy-166

Hf-172

W-178

W-188

Re-189

Os-194

Ir-189

Pt-188

Hg-194

Hg-195m

Pb-210

Pb-212

Bi-210m

Bi-212

At-211

Rn-222

Ra-223

Ra-224

Ra-225

Ra-228

Ac-225

Ac-227

Th-228

Th-234

Pa-230

U-230

U-235

Pu-241

Pu-244

Am-242m

Am-243

Cm-247

Bk-249

Cf-253

Al-28

Sc-47

Sc-44

Mn-52m

Co-60m

Zn-69

Ga-68

Kr-83m

Rb-82

Y-90

Y-91m

Y-92

Sr-87m

Nb-95m

Nb-97m, Nb-97

Tc-99m

Tc-95

Tc-96

Rh-103m

Rh-106

Rh-103m

Ag-108

Ag-110

In-115m

In-114

In-113m

Sn-121

Sb-126m

Te-127

Te-129

Te-131

I-132

Xe-135m

I-122

Ba-137m

Cs-131

La-140

Pr-144m, Pr-144

Pm-148

Eu-146

Ho-166

Lu-172

Ta-178

Re-188

Os-189m

Ir-194

Os-189m

Ir-188

Au-194

Hg-195

Bi-210

Bi-212, Po-212, TI-208

Tl-206

Tl-208, Po-212

Po-211

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

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

Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212

Ac-225, Fr-221, At-217, Bi-213, Tl-209, Po-213, Pb-209

Ac-228

Fr-221, At-217, Bi-213, Po-213, Pb-209, TI-209

Fr-223

Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212

Pa-234m, Pa-234

Ac-226, Th-226, Fr-222, Ra-222, Rn-218, Po-214

Th-226, Ra-222, Rn-218, Po-214

Th-231

U-237

U-240, Np-240m

Am-242, Np-238

Np-239

Pu-243

Am-245

Cm-249

bThe values of A1 and A2 in Curies (Ci) are approximate and for information only; the regulatory standard units are terabecquerels (TBq).

cThe 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.

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 A2 = 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-79

Krypton (36)

1.0X103

2.7X10-8

1.0X105

2.7X10-6

Kr-81

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

1.0X106

2.7X10-5

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-144

Pr-144

Ba-140

La-140

Bi-212

Tl-208 (0.36), Po-212 (0.64)

Pb-210

Bi-210, Po-210

Pb-212

Bi-212, Tl-208 (0.36), Po-212 (0.64)

Rn-222

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

Ra-223

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

Ra-224

Rn-220, Po-216, Pb-212, Bi-212, Tl-208(0.36), Po-212 (0.64)

Ra-226

Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210

Ra-228

Ac-228

Th-228

Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 (0.36), Po-212 (0.64)

Th-229

Ra-225, Ac-225, Fr-221, At-217, Bi-213, Po-213, Pb-209

Th-nat

Ra-228, Ac-228, Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 (0.36), Po-212 (0.64)

Th-234

Pa-234m

U-230

Th-226, Ra-222, Rn-218, Po-214

U-232

Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 (0.36), Po-212 (0.64)

U-235

Th-231

U-238

Th-234, Pa-234m

U-nat

Th-234, Pa-234m, U-234, Th-230, Ra-226, Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210

Np-237

Pa-233

Am-242m

Am-242

Am-243

Np-239

c(Reserved)

dThese values apply only to compounds of uranium that take the chemical form of UF6, UO2F2 and UO2(NO3)2 in both normal and accident conditions of transport.

eThese values apply only to compounds of uranium that take the chemical form of UO3, UF4, UCl4 and hexavalent compounds in both normal and accident conditions of transport.

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

gThese values apply to unirradiated uranium only.
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

Alpha emitting radionuclides, but no neutron emitters, are known to be present (a)

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

Neutron emitting nuclides are known to be present or 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

aIf beta or gamma emitting nuclides are known to be present, the A1 value of 0.1 TBq (2.7 Ci) should be used.
I. Table 4. Activity-Mass Relationships for Uranium.

Uranium Enrichment 1

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.

Notes

12 Va. Admin. Code § 5-481-3770
Derived from Virginia Register Volume 24, Issue 18, eff. June 12, 2008; amended, Virginia Register Volume 32, Issue 24, eff. August 25, 2016; Volume 34, Issue 2, eff. October 18, 2017.

Statutory Authority: § 32.1-229 of the Code of Virginia.

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