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Exemption values

Nuclide Exemption value
in kBq
Nuclide Exemption value
in kBq
Nuclide Exemption value
in kBq
H-3
1000000
Sr-90
10
Pm-147
10000
Be-7
10000
Nb-93m
10000
Eu-152
1000
C-14
10000
Mo-99
1000
Ir-192
10
Na-22
1000
Ru-103
1000
Ta-182
10
P-32
100
Ru-106
100
Hg-203
100
S-35
100000
Cd-109
1000
Tl-204
10
Cr-51
10000
Ag-110m
1000
Bi-207
1000
Mn-54
1000
Sn-113
10000
Pb-210
10
Fe-55 1000 Te-123m
10000
Ra-226
10
Co-56
100
Sb-124
1000
Rn-222
100000
Co-57
1000
Sb-125
1000
Th-230
10
Co-58
1000
I-125
1000
Th-232
10
Fe-59
1000
I-131
1000
Th-232sec
1
Co-60
100
Ba-133
1000
Th-nat
1,16*
Zn-65
1000
Xe-133
10
Am-241
10
Se-75
1000
Cs-134
10
U-nat
10**
Kr-85
10
Cs-137
10
Sr-85
1000
Ce-139
1000
Y-88
1000
Ce-141
10000
Sr-89
1000
Ce-144
100
* This value corresponds to the total activity of the isotopes present in thorium activity standards of the PTB: Th-232sec and Th-230.
** This value corresponds to the total activity of the isotopes present in uranium activity standards of the PTB: U-238, U-234 and U-235.