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Page Title:
Table 5.1. Urine Bioassay Goals(a) for 239Pu |
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| 0126im.jpg) DOE-STD-1128-98
Guide of Good Practices for Occupational Radiological Protection in Plutonium Facilities
Table 5.1. Urine Bioassay Goals(a) for 239Pu
Class W Inhalation
Class Y Inhalation
Dose
Dose
Urine
100-mrem
Urine
100-mrem
Limit
Limit
Intake
CEDE
Intake
CEDE
Goal,(b)
Goal,(c)
Goal,(b)
Goal,(c)
Retention
Retention
Fraction
Fraction
Days Post-
dpm
dpm
dpm
dpm
(IRF)
(IRF)
Intake
1
2.36E-04
3.35E+00
1.22E-01
1.28E-05
4.67E-01
9.23E-03
2
1.61E-04
2.29E+00
8.33E-02
8.71E-06
3.18E-01
6.28E-03
7
3.29E-05
4.68E-01
1.70E-02
1.69E-06
6.17E-02
1.22E-03
14
2.18E-05
3.10E-01
1.13E-02
1.09E-06
3.98E-02
7.86E-04
30
1.73E-05
2.46E-01
8.95E-03
8.60E-07
3.14E-02
6.20E-04
60
1.34E-05
1.90E-01
6.93E-03
7.15E-07
2.61E-02
5.15E-04
90
1.15E-05
1.63E-01
5.95E-03
6.89E-07
2.52E-02
4.97E-04
180
8.31E-06
1.18E-01
4.30E-03
7.19E-07
2.63E-02
5.18E-04
365
4.84E-06
6.88E-02
2.50E-03
7.97E-07
2.91E-02
5.74E-04
730
2.45E-06
3.48E-02
1.27E-03
8.85E-07
3.23E-02
6.38E-04
1825
1.63E-06
2.32E-02
8.43E-04
8.82E-07
3.22E-02
6.36E-04
3650
1.54E-06
2.19E-02
7.97E-04
7.38E-07
2.69E-02
5.32E-04
7300
1.38E-06
1.96E-02
7.14E-04
6.09E-07
2.22E-02
4.39E-04
18250
1.00E-06
1.42E-02
5.17E-04
4.38E-07
1.60E-02
3.16E-04
(a)
The goals reflect the activity in a 24 hour urine void corresponding to either a 50 rem CDE or a 0.1 rem
CEDE.
(b)
Calculated as Goal (dpm) = Intake * IRF * 2220 dpm/nCi, where Intake (nCi) is the 50 rem CDE dose limit/dose
conversion factor and IRF is the intake retention fraction.
The dose conversion factor (committed dose per unit intake) derived from Federal Guidance Report No. 11 (EPA,
1988b), Table 2.1 is shown below:
Class W,Class Y,
rem/nCi
rem/nCi
Bone Surface
7.81 3.04
(c)
Calculated as Goal (dpm) = Intake * IRF * 2220 dpm/nCi, where Intake (nCi) is the 0.1 rem CEDE dose threshold/dose
conversion factor and IRF is the intake retention fraction.
The dose conversion factor (committed dose per unit intake) derived from Federal Guidance Report No. 11 (EPA,
1988b), Table 2.1 is shown below:
Class W,Class Y,
rem/nCi
rem/nCi
DCF
0.429 0.308
5-4
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