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Page Title:
Table 5.2. Fecal Bioassay Goals(a) for 239Pu |
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| 0127im.jpg) DOE-STD-1128-98
Guide of Good Practices for Occupational Radiological Protection in Plutonium Facilities
Table 5.2. Fecal Bioassay Goals(a) for 239Pu
Class W Inhalation
Class Y Inhalation
Fecal
100-mrem
Fecal
100-mrem
Dose
Dose
Intake
CEDE
Intake
CEDE
Limit
Limit
Goal,(c)
Goal,(d)
Goal,(c)
Goal,(d)
Retention
Retention
Fraction(b)
Factor(b)
Days Post-
dpm
dpm
dpm
dpm
Intake
(IRF)
(IRF)
1
1.05E-01
1.49E+03
5.43E+01
1.27E-01
4.64E+03
9.15E+01
2
1.34E-01
1.90E+03
6.93E+01
1.56E-01
5.70E+03
1.12E+02
7
6.41E-03
9.11E+01
3.32E+00
5.52E-03
2.02E+02
3.98E+00
14
1.23E-03
1.75E+01
6.37E-01
1.73E-04
6.32E+00
1.25E-01
30
9.58E-04
1.36E+01
4.96E-01
1.34E-04
4.89E+00
9.66E-02
60
6.34E-04
9.01E+00
3.28E-01
1.29E-04
4.71E+00
9.30E-02
90
4.21E-04
5.98E+00
2.18E-01
1.23E-04
4.49E+00
8.87E-02
180
1.26E-04
1.79E+00
6.52E-02
1.09E-04
3.98E+00
7.86E-02
365
1.39E-05
1.98E-01
7.19E-03
8.46E-05
3.09E+00
6.10E-02
730
2.50E-06
3.55E-02
1.29E-03
5.14E-05
1.88E+00
3.70E-02
1825
1.63E-06
2.32E-02
8.43E-04
1.19E-05
4.35E-01
8.58E-03
3650
1.54E-06
2.19E-02
7.97E-04
1.36E-06
4.97E-02
9.80E-04
7300
1.38E-06
1.96E-02
7.14E-04
6.15E-07
2.25E-02
4.43E-04
18250
1.00E-06
1.42E-02
5.17E-04
4.39E-07
1.60E-02
3.16E-04
(a)
The goals reflect the activity in a 24 hour fecal sample corresponding to either a 50 rem CDE or a
0.1 rem CEDE.
(b)
IRF values obtained from GENMOD Computer Code (Version 3.0.3).
(c)
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
(d)
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
5-5
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