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Page Title:
Table A.1 Thresholds for Radionuclides cont'd |
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|  DOE-STD-1027-92
ATTACHMENT 1
Isotope
Category 2
Threshold
Category 3
Threshold
Curies
Grams
Curies
Grams
Sn-123
9.5E+05
1.2E+02
3.2E+02
3.9E-02
Sn-126
3.3E+05
1.2E+07
1.7E+02
6.0E+03
Sb-124
1.3E+06
7.5E+01
3.6E+02
2.1E-02
Sb-126
2.5E+06
3.0E+01
2.8E+02
3.4E-03
Te-127m
1.5E+05
1.6E+01
4.0E+02
4.2E-02
Te-129m
1.4E+05
4.7E+00
4.0E+02
1.3E-02
I-125
2.4E+03
1.4E-01
5.6E-01
3.2E-05
I-131
1.8E+03
1.4E-02
9.2E-01
7.4E-06
Xe-133
1.8E+06
9.6E+00
2.0E+04
1.1E-01
Cs-134
6.0E+04
4.6E+01
4.2E+01
3.3E-02
Cs-137
8.9E+04
1.0E+03
6.0E+01
6.9E-01
Ba-133
4.0E+06
1.6E+04
1.1E+03
4.3E+00
Ba-140
7.8E+06
1.1E+02
6.0E+02
8.2E-03
Ce-141
3.3E+06
1.2E+02
1.0E+03
3.5E-02
Ce-144
8.2E+04
2.6E+01
1.0E+02
3.1E-02
Pm-145
1.1E+06
7.6E+03
2.0E+03
1.4E+01
Pm-147
8.4E+05
9.0E+02
1.0E+03
9.5E-01
Sm-151
9.9E+05
3.7E+04
1.0E+03
3.8E+01
Eu-152
1.3E+05
7.5E+02
2.0E+02
1.2E+00
Eu-154
1.1E+05
4.2E+02
2.0E+02
7.6E-01
Eu-155
7.3E+05
1.6E+03
9.4E+02
2.0E+00
Gd-153
1.4E+06
3.9E+02
1.0E+03
2.8E-01
Tb-160
1.3E+06
1.1E+02
5.6E+02
5.0E-02
Ho-166m
4.0E+04
2.2E+04
7.2E+01
4.0E+01
Tm-170
1.2E+06
2.1E+02
5.2E+02
8.7E-02
Hf-181
2.2E+06
1.3E+02
7.6E+02
4.5E-02
Ir-192
1.2E+06
1.3E+02
9.4E+02
1.0E-01
Au-198
9.3E+06
3.8E+01
2.0E+03
8.2E-03
Hg-203
4.3E+05
3.1E+01
3.6E+02
2.6E-02
Pb-210
2.2E+03
2.9E+01
3.6E-01
4.7E-03
Bi-207
2.2E+06
4.3E+04
5.0E+02
1.1E+01
Bi-210
1.5E+05
1.2E+00
3.2E+02
2.6E-03
Po-210
3.5E+02
7.8E-02
1.9E+00
4.2E-04
Rn-222
1.6E+08
1.1E+03
1.0E+01
6.5E-05
Ra-223
3.8E+03
7.4E-02
6.2E+01
1.2E-03
Ra-224
9.9E+03
6.1E-02
2.0E+02
1.2E-03
Ra-225
3.8E+03
9.6E-02
7.2E+01
1.8E-03
Ac-225
2.9E+03
4.9E-02
3.2E+01
5.5E-04
Ac-227
4.3E+00
5.9E-02
4.2E-02
5.8E-04
Th-228
9.2E+01
1.1E-01
1.0E+00
1.2E-03
Th-230
8.9E+01
4.4E+03
6.2E-01
3.1E+01
Th-232
1.8E+01
1.6E+08
1.0E-01
9.1E+05
A - 11
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