Symbol of Radionuclide
Element and Atomic No.
A1
(TBq)
A1
(Ci)
A2
(TBq)
A2
(Ci)
Specific Activity
(TBq/g)     (Ci/g)
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
TABLE VI
A1 AND A2 VALUES FOR RADIONUCLIDES (Continued)
Symbol of Radionuclide
Element and Atomic No.
A1
(TBq)
A1
(Ci)
A2
(TBq)
A2
(Ci)
Specific Activity
(TBq/g)     (Ci/g)
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
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
TABLE VI
A1 AND A2 VALUES FOR RADIONUCLIDES (Continued)
Symbol of Radionuclide
Element and Atomic No.
A1
(TBq)
A1
(Ci)
A2
(TBq)
A2
(Ci)
Specific Activity
(TBq/g)     (Ci/g)
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)
9.0
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
TABLE VI
A1 AND A2 VALUES FOR RADIONUCLIDES (Continued)
Symbol of Radionuclide
Element and Atomic No.
A1
(TBq)
A1
(Ci)
A2
(TBq)
A2
(Ci)
Specific Activity
(TBq/g)     (Ci/g)
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
TABLE VI
A1 AND A2 VALUES FOR RADIONUCLIDES (Continued)
Symbol of Radionuclide
Element and Atomic No.
A1
(TBq)
A1
(Ci)
A2
(TBq)
A2
(Ci)
Specific Activity
(TBq/g)     (Ci/g)
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
TABLE VI
A1 AND A2 VALUES FOR RADIONUCLIDES (Continued)
Symbol of Radionuclide
Element and Atomic No.
A1
(TBq)
A1
(Ci)
A2
(TBq)
A2
(Ci)
Specific Activity
(TBq/g)     (Ci/g)
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
TABLE VI
A1 AND A2 VALUES FOR RADIONUCLIDES (Continued)
Symbol of Radionuclide
Element and Atomic No.
A1
(TBq)
A1
(Ci)
A2
(TBq)
A2
(Ci)
Specific Activity
(TBq/g)     (Ci/g)
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
TABLE VI
A1 AND A2 VALUES FOR RADIONUCLIDES (Continued)
Symbol of Radionuclide
Element and Atomic No.
A1
(TBq)
A1
(Ci)
A2
(TBq)
A2
(Ci)
Specific Activity
(TBq/g)     (Ci/g)
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
N/A
N/A
U (dep)
Unlimited
Unlimited
Unlimited
Unlimited
0.0
(See Table IX)
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
1.2X107
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
4.2X107
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 (79)
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
4.9X107
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
9.3X10−5
2.5X10−3
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
NOTES
(a) A1 and/or A2 values include contributions from daughter nuclides with half−lives less than 10 days, as listed in the following:
Mg-28
Al-28
Ca-47
Sc-47
Ti-44
Sc-44
Fe-52
Mn-52m
Fe-60
Co-60m
Zn-69m
Zn-69
Ge-68
Ga-68
Rb-83
Kr-83m
Sr-82
Rb-82
Sr-90
Y-90
Sr-91
Y-91m
Sr-92
Y-92
Y-87
Sr-87m
Zr-95
Nb-95m
Zr-97
Nb-97m, Nb-97
Mo-99
Tc-99m
Tc-95m
Tc-95
Tc-96m
Tc-96
Ru-103
Rh-103m
Ru-106
Rh-106
Pd-103
Rh-103m
Ag-108m
Ag-108
Ag-110m
Ag-110
Cd-115
In-115m
In-114m
In-114
Sn-113
In-113m
Sn-121m
Sn-121
Sn-126
Sb-126m
Te-127m
Te-127
Te-129m
Te-129
Te-131m
Te-131
Te-132
I-132
I-135
Xe-135m
Xe-122
I-122
Cs-137
Ba-137m
Ba-131
Cs-131
Ba-140
La-140
Ce-144
Pr-144m, Pr-144
Pm-148m
Pm-148
Gd-146
Eu-146
Dy-166
Ho-166
Hf-172
Lu-172
W-178
Ta-178
W-188
Re-188
Re-189
Os-189m
Os-194
Ir-194
Ir-189
Os-189m
Pt-188
Ir-188
Hg-194
Au-194
Hg-195m
Hg-195
Pb-210
Bi-210
Pb-212
Bi-212, Tl-208, Po-212
Bi-210m
Tl-206
Bi-212
Tl-208, Po-212
At-211
Po-211
Rn-222
Po-218, Pb-214, At-218, Bi-214, Po-214
Ra-223
Rn-219, Po-215, Pb-211, Bi-211, Po-211, Tl-207
Ra-224
Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212
Ra-225
Ac-225, Fr-221, At-217, Bi-213, Tl-209, Po-213, Pb-209
Ra-226
Rn-222, Po-218, Pb-214, At-218, Bi-214, Po-214
Ra-228
Ac-228
Ac-225
Fr-221, At-217, Bi-213, Tl-209, Po-213, Pb-209
Ac-227
Fr-223
Th-228
Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208, Po-212
Th-234
Pa-234m, Pa-234
Pa-230
Ac-226, Th-226, Fr-222, Ra-222, Rn-218, Po-214
U-230
Th-226, Ra-222, Rn-218, Po-214
U-235
Th-231
Pu-241
U-237
Pu-244
U-240, Np-240m
Am-242m
Am-242, Np-238
Am-243
Np-239
Cm-247
Pu-243
Bk-249
Am-245
Cf-253
Cm-249
(b) The values of A1 and A2 in curies (Ci) are approximate and for information only; the regulatory standard units are Terabecquerels (TBq).
(c) The activity of Ir-192 in special form may be determined from a measurement of the rate of decay or a measurement of the radiation level at a prescribed distance from the source.
(d) These values apply only to compounds of uranium that take the chemical form of UF6, UO2F2 and UO2(NO3)2 in both normal and accident conditions of transport.
(e) These values apply only to compounds of uranium that take the chemical form of UO3, UF4, UCl4, and hexavalent compounds in both normal and accident conditions of transport.
(f) These values apply to all compounds of uranium other than those specified in (d) and (e), above.
(g) These values apply to unirradiated uranium only.
(h) A2 = 0.74 TBq (20 Ci) for Mo−99 for domestic use.
TABLE VII
EXEMPT MATERIAL ACTIVITY CONCENTRATIONS AND EXEMPT
CONSIGNMENT ACTIVITY LIMITS FOR RADIONUCLIDES
Symbol of Radionuclide
Element and Atomic No.
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 (a)
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 (a)
1.0
2.7X10−11
1.0X104
2.7X10−7
Am−243 (a)
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
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 (a)
1.0X101
2.7X10−10
1.0X105
2.7X10−6
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 (a)
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
TABLE VII
EXEMPT MATERIAL ACTIVITY CONCENTRATIONS AND EXEMPT
CONSIGNMENT ACTIVITY LIMITS FOR RADIONUCLIDES (Continued)
Symbol of Radionuclide
Element and Atomic No.
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)
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 (a)
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
TABLE VII
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