[Code of Federal Regulations]
[Title 10, Volume 4, Parts 500 to end]
[Revised as of January 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 10CFR835.1304]

[Page 470-487]
 
                            TITLE 10--ENERGY
 
                    CHAPTER III--DEPARTMENT OF ENERGY
 
PART 835--OCCUPATIONAL RADIATION PROTECTION--Table of Contents
 
                Subpart N--Emergency Exposure Situations
 
Sec. 835.1304  Nuclear accident dosimetry.

    (a) Installations possessing sufficient quantities of fissile 
material to potentially constitute a critical mass, such that the 
excessive exposure of individuals to radiation from a nuclear accident 
is possible, shall provide nuclear accident dosimetry for those 
individuals.
    (b) Nuclear accident dosimetry shall include the following:
    (1) A method to conduct initial screening of individuals involved in 
a nuclear accident to determine whether significant exposures to 
radiation occurred;
    (2) Methods and equipment for analysis of biological materials;
    (3) A system of fixed nuclear accident dosimeter units; and

[[Page 471]]

    (4) Personal nuclear accident dosimeters.

[58 FR 65485, Dec. 14, 1993, as amended at 63 FR 59687, Nov. 4, 1998]

Appendix A to Part 835--Derived Air Concentrations (DAC) for Controlling 
             Radiation Exposure to Workers at DOE Facilities

    The data presented in appendix A are to be used for controlling 
individual internal doses in accordance with Sec. 835.209, identifying 
the need for air monitoring in accordance with Sec. 835.403, and 
identifying the need for posting of airborne radioactivity areas in 
accordance with Sec. 835.603(d).
    The DAC values are given for individual radionuclides. For known 
mixtures of radionuclides, determine the sum of the ratio of the 
observed concentration of a particular radionuclide and its 
corresponding DAC for all radionuclides in the mixture. If this sum 
exceeds unity (1), then the DAC has been exceeded. For unknown 
radionuclides, the most restrictive DAC (lowest value) for those 
isotopes not known to be absent shall be used.
    The derived air concentrations (DAC) for limiting radiation 
exposures through inhalation of radionuclides by workers are listed in 
this appendix. The values are based on either a stochastic (committed 
effective dose equivalent) dose limit of 5 rems (0.05 Sv) or a non-
stochastic (organ) dose limit of 50 rems (0.5 Sv) per year, whichever is 
more limiting.

    Note: the 15 rems [0.15 Sv] dose limit for the lens of the eye does 
not appear as a critical organ dose limit.)

    The columns in this appendix contain the following information: (1) 
Radionuclide; (2) inhaled air DAC for lung retention class D, W, and Y 
in units of Ci/ml; (3) inhaled air DAC for lung retention class 
D, W, and Y in units of Bq/m 3; and (4) an indication of 
whether or not the DAC for each class is controlled by the stochastic 
(effective dose equivalent) or nonstochastic (tissue) dose. The classes 
D, W, and Y have been established to describe the clearance of inhaled 
radionuclides from the lung. This classification refers to the 
approximate length of retention in the pulmonary region. Thus, the range 
of half-times for retention in the pulmonary region is less than 10 days 
for class D (days), from 10 to 100 days for class W (weeks), and greater 
than 100 days for class Y (years). The DACs are listed by radionuclide, 
in order of increasing atomic mass, and are based on the assumption that 
the particle size distribution of the inhaled material is unknown and an 
assumed particle size distribution of 1 m is used. For 
situations where the particle size distribution is known to differ 
significantly from 1 m, appropriate corrections can be made to 
both the estimated dose to workers and the DACs.

--------------------------------------------------------------------------------------------------------------------------------------------------------
                                         Inhaled air-lung retention class \3\               Inhaled air-lung retention class \3\          Stochastic or
                                 ------------------------------------------------------------------------------------------------------      organ 1
          Radionuclide                              Ci/ml                                         Bq/m 3                      -----------------
                                 ------------------------------------------------------------------------------------------------------
                                         D                W                Y                D                W                Y            ( D/ W/ Y)
--------------------------------------------------------------------------------------------------------------------------------------------------------
H-3 (Water) 2...................  2.E-05           2.E-05           2.E-05           8.E+05           8.E+05           8.E+05           St/St/St
H-3 (Elemental) 2...............  5.E-01           5.E-01           5.E-01           2.E+10           2.E+10           2.E+10           St/St/St
Be-7............................         -         9.E-06           8.E-06                  -         3.E+05           3.E+05             /St/St
Be-10...........................         -         6.E-08           6.E-09                  -         2.E+03           2.E+02             /St/St
C-11 (Org) 2....................  2.E-04           2.E-04           2.E-04           6.E+06           6.E+06           6.E+06           St/St/St
C-11 (CO) 2.....................  5.E-04           5.E-04           5.E-04           2.E+07           2.E+07           2.E+07           St/St/St
C-11 (CO2) 2....................  3.E-04           3.E-04           3.E-04           1.E+07           1.E+07           1.E+07           St/St/St
C-14 (Org) 2....................  1.E-06           1.E-06           1.E-06           4.E+07           4.E+04           4.E+07           St/St/St
C-14 (CO) 2.....................  7.E-04           7.E-04           7.E-04           3.E+07           3.E+07           3.E+07           St/St/St
C-14 (CO2) 2....................  9.E-05           9.E-05           9.E-05           3.E+06           3.E+06           3.E+06           St/St/St
F-18............................  3.E-05           4.E-05           3.E-05           1.E+06           1.E+06           1.E+06           St/St/St
Na-22...........................  3.E-07                  -                -         1.E+04                  -                -         St/  /
Na-24...........................  2.E-06                  -                -         8.E+04                  -                -         St/  /
Mg-28...........................  7.E-07           5.E-07                  -         3.E+04           2.E+04                  -         St/St/
Al-26...........................  3.E-08           3.E-08                  -         1.E+03           1.E+03                  -         St/St/
Si-31...........................  1.E-05           1.E-05           1.E-05           4.E+05           5.E+05           4.E+05           St/St/St
Si-32...........................  1.E-07           5.E-08           2.E-09           4.E+03           2.E+03           8.E+01           St/St/St
P-32............................  4.E-07           2.E-07                  -         1.E+04           6.E+03                  -         St/St/
P-33............................  3.E-06           1.E-06                  -         1.E+05           4.E+04                  -         St/St/
S-35............................  7.E-06           9.E-07                  -         3.E+05           3.E+04                  -         St/St/
S-35 (Gas)......................         -         6.E-06                  -                -         2.E+05                  -           /St/
Cl-36...........................  1.E-06           1.E-07                  -         4.E+04           4.E+03                  -         St/St/
Cl-38...........................  2.E-05           2.E-05                  -         6.E+05           7.E+05                  -         St/St/
Cl-39...........................  2.E-05           2.E-05                  -         8.E+05           9.E+05                  -         St/St/
K-40............................  2.E-07                  -                -         6.E+03                  -                -         St/  /
K-42............................  2.E-06                  -                -         7.E+04                  -                -         St/  /
K-43............................  4.E-06                  -                -         1.E+05                  -                -         St/  /
K-44............................  3.E-05                  -                -         1.E+06                  -                -         St/  /
K-45............................  5.E-05                  -                -         2.E+06                  -                -         St/  /
Ca-41...........................         -         2.E-06                  -                -         6.E+04                  -           /E/
Ca-45...........................         -         3.E-07                  -                -         1.E+04                  -           /St/

[[Page 472]]


Ca-47...........................         -         4.E-07                  -                -         1.E+04                  -           /St/
Sc-43...........................         -                -         1.E-05                  -                -         4.E+05             /  /St
Sc-44m..........................         -                -         3.E-07                  -                -         1.E+04             /  /St
Sc-44...........................         -                -         5.E-06                  -                -         2.E+05             /  /St
Sc-46...........................         -                -         1.E-07                  -                -         4.E+03             /  /St
Sc-47...........................         -                -         1.E-06                  -                -         5.E+04             /  /St
Sc-48...........................         -                -         6.E-07                  -                -         2.E+04             /  /St
Sc-49...........................         -                -         2.E-05                  -                -         8.E+05             /  /St
Ti-44...........................  5.E-09           1.E-08           2.E-09           2.E+02           4.E+02           9.E+01           St/St/St
Ti-45...........................  1.E-05           1.E-05           1.E-05           4.E+05           5.E+05           5.E+05           St/St/St
V-47............................  4.E-05           4.E-05                  -         1.E+06           1.E+06                  -         St/St/
V-48............................  4.E-07           3.E-07                  -         2.E+04           1.E+04                  -         St/St/
V-49............................  1.E-05           7.E-06                  -         5.E+05           3.E+05                  -         BS/St/
Cr-48...........................  5.E-06           3.E-06           3.E-06           2.E+05           1.E+05           1.E+05           St/St/St
Cr-49...........................  3.E-05           4.E-05           4.E-05           1.E+06           2.E+06           1.E+06           St/St/St
Cr-51...........................  2.E-05           1.E-05           8.E-06           7.E+05           4.E+05           3.E+05           St/St/St
Mn-51...........................  2.E-05           2.E-05                  -         8.E+05           9.E+05                  -         St/St/
Mn-52m..........................  4.E-05           4.E-05                  -         1.E+06           2.E+06                  -         St/St/
Mn-52...........................  5.E-07           4.E-07                  -         2.E+04           1.E+04                  -         St/St/
Mn-53...........................  5.E-06           5.E-06                  -         2.E+05           2.E+05                  -         BS/St/
Mn-54...........................  4.E-07           3.E-07                  -         1.E+04           1.E+04                  -         St/St/
Mn-56...........................  6.E-06           9.E-06                  -         2.E+05           3.E+05                  -         St/St/
Fe-52...........................  1.E-06           1.E-06                  -         5.E+04           4.E+04                  -         St/St/
Fe-55...........................  8.E-07           2.E-06                  -         3.E+04           6.E+04                  -         St/St/
Fe-59...........................  1.E-07           2.E-07                  -         5.E+03           8.E+03                  -         St/St/
Fe-60...........................  3.E-09           8.E-09                  -         1.E+02           3.E+02                  -         St/St/
Co-55...........................         -         1.E-06           1.E-06                  -         4.E+04           4.E+04             /St/St
Co-56...........................         -         1.E-07           8.E-08                  -         5.E+03           3.E+03             /St/St
Co-57...........................         -         1.E-06           3.E-07                  -         4.E+04           1.E+04             /St/St
Co-58m..........................         -         4.E-05           3.E-05                  -         1.E+06           1.E+06             /St/St
Co-58...........................         -         5.E-07           3.E-07                  -         2.E+04           1.E+04             /St/St
Co-60m..........................         -         2.E-03           1.E-03                  -         6.E+07           4.E+07             /St/St
Co-60...........................         -         7.E-08           1.E-08                  -         3.E+03           5.E+02             /St/St
Co-61...........................         -         3.E-05           2.E-05                  -         1.E+06           9.E+05             /St/St
Co-62m..........................         -         7.E-05           7.E-05                  -         3.E+06           2.E+06             /St/St
Ni-56 (Inorg)...................  8.E-07           5.E-07                  -         3.E+04           2.E+04                  -         St/St/
Ni-56 (Vapor)...................         -         5.E-07                  -                -         2.E+04                  -           /St/
Ni-57 (Inorg)...................  2.E-06           1.E-06                  -         7.E+04           5.E+04                  -         St/St/
Ni-57 (Vapor)...................         -         3.E-06                  -                -         1.E+05                  -           /St/
Ni-59 (Inorg)...................  2.E-06           3.E-06                  -         6.E+04           1.E+05                  -         St/St/
Ni-59 (Vapor)...................         -         8.E-07                  -                -         3.E+04                  -           /St/
Ni-63 (Inorg)...................  7.E-07           1.E-06                  -         3.E+04           4.E+04                  -         St/St/
Ni-63 (Vapor)...................         -         3.E-07                  -                -         1.E+04                  -           /St/
Ni-65 (Inorg)...................  1.E-05           1.E-05                  -         4.E+05           5.E+05                  -         St/St/
Ni-65 (Vapor)...................         -         7.E-06                  -                -         3.E+05                  -           /St/
Ni-66 (Inorg)...................  7.E-07           3.E-07                  -         3.E+04           1.E+04                  -         St/St/
Ni-66 (Vapor)...................         -         1.E-06                  -                -         5.E+04                  -           /St/
Cu-60...........................  4.E-05           5.E-05           4.E-05           1.E+06           2.E+06           2.E+06           St/St/St
Cu-61...........................  1.E-05           2.E-05           1.E-05           5.E+05           6.E+05           5.E+05           St/St/St
Cu-64...........................  1.E-05           1.E-05           9.E-06           5.E+05           4.E+05           3.E+05           St/St/St
Cu-67...........................  3.E-06           2.E-06           2.E-06           1.E+05           8.E+04           7.E+04           St/St/St
Zn-62...........................         -                -         1.E-06                  -                -         4.E+04             /  /St
Zn-63...........................         -                -         3.E-05                  -                -         1.E+06             /  /St
Zn-65...........................         -                -         1.E-07                  -                -         4.E+03             /  /St
Zn-69m..........................         -                -         3.E-06                  -                -         1.E+05             /  /St
Zn-69...........................         -                -         6.E-05                  -                -         2.E+06             /  /St
Zn-71m..........................         -                -         7.E-06                  -                -         3.E+05             /  /St
Zn-72...........................         -                -         5.E-07                  -                -         2.E+04             /  /St
Ga-65...........................  7.E-05           8.E-05                  -         3.E+06           3.E+06                  -         St/St/
Ga-66...........................  1.E-06           1.E-06                  -         5.E+04           5.E+04                  -         St/St/
Ga-67...........................  6.E-06           4.E-06                  -         2.E+05           2.E+05                  -         St/St/
Ga-68...........................  2.E-05           2.E-05                  -         6.E+05           8.E+05                  -         St/St/
Ga-70...........................  7.E-05           8.E-05                  -         3.E+06           3.E+06                  -         St/St/
Ga-72...........................  2.E-06           1.E-06                  -         6.E+04           5.E+04                  -         St/St/
Ga-73...........................  6.E-06           6.E-06                  -         2.E+05           2.E+05                  -         St/St/
Ge-66...........................  1.E-05           8.E-06                  -         4.E+05           3.E+05                  -         St/St/
Ge-67...........................  4.E-05           4.E-05                  -         1.E+06           2.E+06                  -         St/St/
Ge-68...........................  2.E-06           4.E-08                  -         6.E+04           2.E+03                  -         St/St/
Ge-69...........................  6.E-06           3.E-06                  -         2.E+05           1.E+05                  -         St/St/
Ge-71...........................  2.E-04           2.E-05                  -         7.E+06           6.E+05                  -         St/St/
Ge-75...........................  3.E-05           3.E-05                  -         1.E+06           1.E+06                  -         St/St/

[[Page 473]]


Ge-77...........................  4.E-06           2.E-06                  -         2.E+05           9.E+04                  -         St/St/
Ge-78...........................  9.E-06           9.E-06                  -         4.E+05           3.E+05                  -         St/St/
As-69...........................         -         5.E-05                  -                -         2.E+06                  -           /St/
As-70...........................         -         2.E-05                  -                -         8.E+05                  -           /St/
As-71...........................         -         2.E-06                  -                -         7.E+04                  -           /St/
As-72...........................         -         6.E-07                  -                -         2.E+04                  -           /St/
As-73...........................         -         7.E-07                  -                -         3.E+04                  -           /St/
As-74...........................         -         3.E-07                  -                -         1.E+04                  -           /St/
As-76...........................         -         6.E-07                  -                -         2.E+04                  -           /St/
As-77...........................         -         2.E-06                  -                -         8.E+04                  -           /St/
As-78...........................         -         9.E-06                  -                -         3.E+05                  -           /St/
Se-70...........................  1.E-05           2.E-05                  -         6.E+05           7.E+05                  -         St/St/
Se-73m..........................  6.E-05           6.E-05                  -         2.E+06           2.E+06                  -         St/St/
Se-73...........................  6.E-06           7.E-06                  -         2.E+05           2.E+05                  -         St/St/
Se-75...........................  3.E-07           3.E-07                  -         1.E+04           9.E+03                  -         St/St/
Se-79...........................  3.E-07           2.E-07                  -         1.E+04           9.E+03                  -         St/St/
Se-81m..........................  3.E-05           3.E-05                  -         1.E+06           1.E+06                  -         St/St/
Se-81...........................  9.E-05           1.E-04                  -         3.E+06           4.E+06                  -         St/St/
Se-83...........................  5.E-05           5.E-05                  -         2.E+06           2.E+06                  -         St/St/
Br-74m..........................  1.E-05           2.E-05                  -         6.E+05           6.E+05                  -         St/St/
Br-74...........................  3.E-05           3.E-05                  -         1.E+06           1.E+06                  -         St/St/
Br-75...........................  2.E-05           2.E-05                  -         7.E+05           8.E+05                  -         St/St/
Br-76...........................  2.E-06           2.E-06                  -         7.E+04           7.E+04                  -         St/St/
Br-77...........................  1.E-05           8.E-06                  -         4.E+05           3.E+05                  -         St/St/
Br-80m..........................  7.E-06           6.E-06                  -         3.E+05           2.E+05                  -         St/St/
Br-80...........................  8.E-05           9.E-05                  -         3.E+06           3.E+06                  -         St/St/
Br-82...........................  2.E-06           2.E-06                  -         6.E+04           6.E+04                  -         St/St/
Br-83...........................  3.E-05           3.E-05                  -         1.E+06           1.E+06                  -         St/St/
Br-84...........................  2.E-05           3.E-05                  -         9.E+05           1.E+06                  -         St/St/
Rb-79...........................  5.E-05                  -                -         2.E+06                  -                -         St/  /
Rb-81m..........................  1.E-04                  -                -         5.E+06                  -                -         St/  /
Rb-81...........................  2.E-05                  -                -         8.E+05                  -                -         St/  /
Rb-82m..........................  7.E-06                  -                -         3.E+05                  -                -         St/  /
Rb-83...........................  4.E-07                  -                -         2.E+04                  -                -         St/  /
Rb-84...........................  3.E-07                  -                -         1.E+04                  -                -         St/  /
Rb-86...........................  3.E-07                  -                -         1.E+04                  -                -         St/  /
Rb-87...........................  6.E-07                  -                -         2.E+04                  -                -         St/  /
Rb-88...........................  3.E-05                  -                -         1.E+06                  -                -         St/  /
Rb-89...........................  6.E-05                  -                -         2.E+06                  -                -         St/  /
Sr-80...........................  5.E-06                  -         5.E-06           2.E+05                  -         2.E+05           St/  /St
Sr-81...........................  3.E-05                  -         3.E-05           1.E+06                  -         1.E+06           St/  /St
Sr-83...........................  3.E-06                  -         2.E-06           1.E+05                  -         5.E+04           St/  /St
Sr-85m..........................  3.E-04                  -         3.E-04           9.E+06                  -         1.E+07           St/  /St
Sr-85...........................  1.E-06                  -         7.E-07           4.E+04                  -         2.E+04           St/  /St
Sr-87m..........................  5.E-05                  -         6.E-05           2.E+06                  -         2.E+06           St/  /St
Sr-89...........................  3.E-07                  -         6.E-08           1.E+04                  -         2.E+03           St/  /St
Sr-90...........................  8.E-09                  -         2.E-09           3.E+02                  -         6.E+01           BS/  /St
Sr-91...........................  2.E-06                  -         1.E-06           9.E+04                  -         5.E+04           St/  /St
Sr-92...........................  4.E-06                  -         3.E-06           1.E+05                  -         1.E+05           St/  /St
Y-86m...........................         -         2.E-05           2.E-05                  -         9.E+05           9.E+05             /St/St
Y-86............................         -         1.E-06           1.E-06                  -         5.E+04           5.E+04             /St/St
Y-87............................         -         1.E-06           1.E-06                  -         5.E+04           5.E+04             /St/St
Y-88............................         -         1.E-07           1.E-07                  -         4.E+03           4.E+03             /St/St
Y-90m...........................         -         5.E-06           5.E-06                  -         2.E+05           2.E+05             /St/St
Y-90............................         -         3.E-07           2.E-07                  -         1.E+04           9.E+03             /St/St
Y-91m...........................         -         1.E-04           7.E-05                  -         4.E+06           3.E+06             /St/St
Y-91............................         -         7.E-08           5.E-08                  -         3.E+03           2.E+03             /St/St
Y-92............................         -         3.E-06           3.E-06                  -         1.E+05           1.E+05             /St/St
Y-93............................         -         1.E-06           1.E-06                  -         4.E+04           4.E+04             /St/St
Y-94............................         -         3.E-05           3.E-05                  -         1.E+06           1.E+06             /St/St
Y-95............................         -         6.E-05           6.E-05                  -         2.E+06           2.E+06             /St/St
Zr-86...........................  2.E-06           1.E-06           1.E-06           6.E+04           4.E+04           4.E+04           St/St/St
Zr-88...........................  9.E-08           2.E-07           1.E-07           3.E+03           7.E+03           5.E+03           St/St/St
Zr-89...........................  2.E-06           1.E-06           1.E-06           5.E+04           4.E+04           4.E+04           St/St/St
Zr-93...........................  3.E-09           1.E-08           2.E-08           1.E+02           4.E+02           9.E+02           BS/BS/BS
Zr-95...........................  6.E-08           2.E-07           1.E-07           2.E+03           6.E+03           4.E+03           BS/St/St
Zr-97...........................  8.E-07           6.E-07           5.E-07           3.E+04           2.E+04           2.E+04           St/St/St
Nb-88...........................         -         1.E-04           9.E-05                  -         4.E+06           3.E+06             /St/St
Nb-89 (66 min)..................         -         2.E-05           2.E-05                  -         6.E+05           6.E+05             /St/St
Nb-89 (122 min).................         -         8.E-06           7.E-06                  -         3.E+05           2.E+05             /St/St
Nb-90...........................         -         1.E-06           1.E-06                  -         4.E+04           4.E+04             /St/St

[[Page 474]]


Nb-93m..........................         -         5.E-07           7.E-08                  -         2.E+04           3.E+03             /St/St
Nb-94...........................         -         8.E-08           6.E-09                  -         3.E+03           2.E+02             /St/St
Nb-95m..........................         -         1.E-06           9.E-07                  -         4.E+04           4.E+04             /St/St
Nb-95...........................         -         5.E-07           5.E-07                  -         2.E+04           2.E+04             /St/St
Nb-96...........................         -         1.E-06           1.E-06                  -         4.E+04           4.E+04             /St/St
Nb-97...........................         -         3.E-05           3.E-05                  -         1.E+06           1.E+06             /St/St
Nb-98...........................         -         2.E-05           2.E-05                  -         8.E+05           8.E+05             /St/St
Mo-90...........................  3.E-06                  -         2.E-06           1.E+05                  -         7.E+04           St/  /St
Mo-93m..........................  7.E-06                  -         6.E-06           3.E+05                  -         2.E+05           St/  /St
Mo-93...........................  2.E-06                  -         7.E-08           8.E+04                  -         3.E+03           St/  /St
Mo-99...........................  1.E-06                  -         6.E-07           4.E+04                  -         2.E+04           St/  /St
Mo-101..........................  6.E-05                  -         6.E-05           2.E+06                  -         2.E+06           St/  /St
Tc-93m..........................  7.E-05           1.E-04                  -         2.E+06           5.E+06                  -         St/St/
Tc-93...........................  3.E-05           4.E-05                  -         1.E+06           2.E+06                  -         St/St/
Tc-94m..........................  2.E-05           2.E-05                  -         7.E+05           9.E+05                  -         St/St/
Tc-94...........................  8.E-06           1.E-05                  -         3.E+05           4.E+05                  -         St/St/
Tc-96m..........................  1.E-04           1.E-04                  -         4.E+06           4.E+06                  -         St/St/
Tc-96...........................  1.E-06           9.E-07                  -         5.E+04           3.E+04                  -         St/St/
Tc-97m..........................  3.E-06           5.E-07                  -         1.E+05           2.E+04                  -         SW/St/
Tc-97...........................  2.E-05           2.E-06                  -         8.E+05           9.E+04                  -         St/St/
Tc-98...........................  7.E-07           1.E-07                  -         3.E+04           5.E+03                  -         St/St/
Tc-99m..........................  6.E-05           1.E-04                  -         2.E+06           4.E+06                  -         St/St/
Tc-99...........................  2.E-06           3.E-07                  -         8.E+04           1.E+04                  -         SW/St/
Tc-101..........................  1.E-04           2.E-04                  -         5.E+06           6.E+06                  -         St/St/
Tc-104..........................  3.E-05           4.E-05                  -         1.E+06           1.E+06                  -         St/St/
Ru-94...........................  2.E-05           3.E-05           2.E-05           7.E+05           1.E+06           9.E+05           St/St/St
Ru-97...........................  8.E-06           5.E-06           5.E-06           3.E+05           2.E+05           2.E+05           St/St/St
Ru-103..........................  7.E-07           4.E-07           3.E-07           3.E+04           2.E+04           1.E+04           St/St/St
Ru-105..........................  6.E-06           6.E-06           5.E-06           2.E+05           2.E+05           2.E+05           St/St/St
Ru-106..........................  4.E-08           2.E-08           5.E-09           1.E+03           8.E+02           2.E+02           St/St/St
Rh-99m..........................  2.E-05           3.E-05           3.E-05           9.E+05           1.E+06           1.E+06           St/St/St
Rh-99...........................  1.E-06           9.E-07           8.E-07           5.E+04           3.E+04           3.E+04           St/St/St
Rh-100..........................  2.E-06           2.E-06           2.E-06           8.E+04           6.E+04           6.E+04           St/St/St
Rh-101m.........................  5.E-06           3.E-06           3.E-06           2.E+05           1.E+05           1.E+05           St/St/St
Rh-101..........................  2.E-07           3.E-07           7.E-08           8.E+03           1.E+04           2.E+03           St/St/St
Rh-102m.........................  2.E-07           2.E-07           5.E-08           8.E+03           6.E+03           2.E+03           St/St/St
Rh-102..........................  4.E-08           7.E-08           2.E-08           1.E+03           3.E+03           9.E+02           St/St/St
Rh-103m.........................  4.E-04           5.E-04           5.E-04           2.E+07           2.E+07           2.E+07           St/St/St
Rh-105..........................  5.E-06           3.E-06           2.E-06           2.E+05           1.E+05           9.E+04           St/St/St
Rh-106m.........................  1.E-05           1.E-05           1.E-05           4.E+05           6.E+05           5.E+05           St/St/St
Rh-107..........................  1.E-04           1.E-04           1.E-04           4.E+06           4.E+06           4.E+06           St/St/St
Pd-100..........................  6.E-07           5.E-07           6.E-07           2.E+04           2.E+04           2.E+04           St/St/St
Pd-101..........................  1.E-05           1.E-05           1.E-05           5.E+05           5.E+05           5.E+05           St/St/St
Pd-103..........................  3.E-06           2.E-06           1.E-06           1.E+05           7.E+04           5.E+04           St/St/St
Pd-107..........................  9.E-06           3.E-06           2.E-07           3.E+05           1.E+05           6.E+03           K /St/St
Pd-109..........................  3.E-06           2.E-06           2.E-06           1.E+05           8.E+04           7.E+04           St/St/St
Ag-102..........................  8.E-05           9.E-05           8.E-05           3.E+06           3.E+06           3.E+06           St/St/St
Ag-103..........................  4.E-05           6.E-05           5.E-05           2.E+06           2.E+06           2.E+06           St/St/St
Ag-104m.........................  4.E-05           5.E-05           5.E-05           2.E+06           2.E+06           2.E+06           St/St/St
Ag-104..........................  3.E-05           6.E-05           6.E-05           1.E+06           2.E+06           2.E+06           St/St/St
Ag-105..........................  4.E-07           7.E-07           7.E-07           2.E+04           3.E+04           3.E+04           St/St/St
Ag-106m.........................  3.E-07           4.E-07           4.E-07           1.E+04           1.E+04           1.E+04           St/St/St
Ag-106..........................  7.E-05           8.E-05           8.E-05           3.E+06           3.E+06           3.E+06           St/St/St
Ag-108m.........................  8.E-08           1.E-07           1.E-08           3.E+03           4.E+03           4.E+02           St/St/St
Ag-110m.........................  6.E-08           8.E-08           4.E-08           2.E+03           3.E+03           1.E+03           St/St/St
Ag-111..........................  7.E-07           4.E-07           4.E-07           2.E+04           1.E+04           1.E+04           L /St/St
Ag-112..........................  3.E-06           4.E-06           4.E-06           1.E+05           2.E+05           1.E+05           St/St/St
Ag-115..........................  4.E-05           4.E-05           3.E-05           1.E+06           1.E+06           1.E+06           St/St/St
Cd-104..........................  3.E-05           5.E-05           5.E-05           1.E+06           2.E+06           2.E+06           St/St/St
Cd-107..........................  2.E-05           2.E-05           2.E-05           8.E+05           9.E+05           8.E+05           St/St/St
Cd-109..........................  1.E-08           5.E-08           5.E-08           5.E+02           2.E+03           2.E+03           K /K /St
Cd-113m.........................  1.E-09           4.E-09           5.E-09           4.E+01           1.E+02           2.E+02           K /K /St
Cd-113..........................  9.E-10           3.E-09           6.E-09           4.E+01           1.E+02           2.E+02           K /K /St
Cd-115m.........................  2.E-08           5.E-08           6.E-08           8.E+02           2.E+03           2.E+03           K /St/St
Cd-115..........................  6.E-07           5.E-07           6.E-07           2.E+04           2.E+04           2.E+04           St/St/St
Cd-117m.........................  5.E-06           7.E-06           6.E-06           2.E+05           3.E+05           2.E+05           St/St/St
Cd-117..........................  5.E-06           7.E-06           6.E-06           2.E+05           3.E+05           2.E+05           St/St/St
In-109..........................  2.E-05           3.E-05                  -         7.E+05           1.E+06                  -         St/St/
In-110 (69 min).................  2.E-05           2.E-05                  -         7.E+05           9.E+05                  -         St/St/
In-110 (5 h)....................  7.E-06           8.E-06                  -         3.E+05           3.E+05                  -         St/St/
In-111..........................  3.E-06           3.E-06                  -         1.E+05           1.E+05                  -         St/St/

[[Page 475]]


In-112..........................  3.E-04           3.E-04                  -         1.E+07           1.E+07                  -         St/St/
In-113m.........................  6.E-05           8.E-05                  -         2.E+06           3.E+06                  -         St/St/
In-114m.........................  3.E-08           4.E-08                  -         1.E+03           2.E+03                  -         St/St/
In-115m.........................  2.E-05           2.E-05                  -         7.E+05           7.E+05                  -         St/St/
In-115..........................  6.E-10           2.E-09                  -         2.E+01           8.E+01                  -         St/St/
In-116m.........................  3.E-05           5.E-05                  -         1.E+06           2.E+06                  -         St/St/
In-117m.........................  1.E-05           2.E-05                  -         5.E+05           7.E+05                  -         St/St/
In-117..........................  7.E-05           9.E-05                  -         3.E+06           3.E+06                  -         St/St/
In-119m.........................  5.E-05           6.E-05                  -         2.E+06           2.E+06                  -         St/St/
Sn-110..........................  5.E-06           5.E-06                  -         2.E+05           2.E+05                  -         St/St/
Sn-111..........................  9.E-05           1.E-04                  -         4.E+06           4.E+06                  -         St/St/
Sn-113..........................  5.E-07           2.E-07                  -         2.E+04           9.E+03                  -         St/St/
Sn-117m.........................  5.E-07           6.E-07                  -         2.E+04           2.E+04                  -         BS/St/
Sn-119m.........................  1.E-06           4.E-07                  -         4.E+04           1.E+04                  -         St/St/
Sn-121m.........................  4.E-07           2.E-07                  -         1.E+04           9.E+03                  -         St/St/
Sn-121..........................  6.E-06           5.E-06                  -         2.E+05           2.E+05                  -         St/St/
Sn-123m.........................  5.E-05           6.E-05                  -         2.E+06           2.E+06                  -         St/St/
Sn-123..........................  3.E-07           7.E-08                  -         1.E+04           3.E+03                  -         St/St/
Sn-125..........................  4.E-07           2.E-07                  -         1.E+04           5.E+03                  -         St/St/
Sn-126..........................  2.E-08           3.E-08                  -         9.E+02           1.E+03                  -         St/St/
Sn-127..........................  8.E-06           8.E-06                  -         3.E+05           3.E+05                  -         St/St/
Sn-128..........................  1.E-05           1.E-05                  -         4.E+05           6.E+05                  -         St/St/
Sb-115..........................  1.E-04           1.E-04                  -         4.E+06           5.E+06                  -         St/St/
Sb-116m.........................  3.E-05           6.E-05                  -         1.E+06           2.E+06                  -         St/St/
Sb-116..........................  1.E-04           1.E-04                  -         4.E+06           5.E+06                  -         St/St/
Sb-117..........................  9.E-05           1.E-04                  -         3.E+06           4.E+06                  -         St/St/
Sb-118m.........................  8.E-06           9.E-06                  -         3.E+05           3.E+05                  -         St/St/
Sb-119..........................  2.E-05           1.E-05                  -         7.E+05           4.E+05                  -         St/St/
Sb-120 (16 min).................  2.E-04           2.E-04                  -         7.E+06           8.E+06                  -         St/St/
Sb-120 (6 d)....................  9.E-07           6.E-07                  -         3.E+04           2.E+04                  -         St/St/
Sb-122..........................  1.E-06           4.E-07                  -         4.E+04           2.E+04                  -         St/St/
Sb-124m.........................  3.E-04           3.E-04                  -         1.E+07           9.E+06                  -         St/St/
Sb-124..........................  4.E-07           1.E-07                  -         1.E+04           4.E+03                  -         St/St/
Sb-125..........................  1.E-06           2.E-07                  -         4.E+04           8.E+03                  -         St/St/
Sb-126m.........................  8.E-05           8.E-05                  -         3.E+06           3.E+06                  -         St/St/
Sb-126..........................  4.E-07           2.E-07                  -         2.E+04           8.E+03                  -         St/St/
Sb-127..........................  9.E-07           4.E-07                  -         3.E+04           1.E+04                  -         St/St/
Sb-128 (9 h)....................  2.E-06           1.E-06                  -         6.E+04           5.E+04                  -         St/St/
Sb-128 (10 min).................  2.E-04           2.E-04                  -         6.E+06           7.E+06                  -         St/St/
Sb-129..........................  4.E-06           4.E-06                  -         1.E+05           1.E+05                  -         St/St/
Sb-130..........................  3.E-05           3.E-05                  -         1.E+06           1.E+06                  -         St/St/
Sb-131..........................  1.E-05           1.E-05                  -         4.E+05           4.E+05                  -         T /T /
Te-116..........................  9.E-06           1.E-05                  -         3.E+05           5.E+05                  -         St/St/
Te-121m.........................  8.E-08           2.E-07                  -         3.E+03           6.E+03                  -         BS/St/
Te-121..........................  2.E-06           1.E-06                  -         7.E+04           5.E+04                  -         St/St/
Te-123m.........................  9.E-08           2.E-07                  -         3.E+03           8.E+03                  -         BS/St/
Te-123..........................  8.E-08           2.E-07                  -         3.E+03           7.E+03                  -         BS/BS/
Te-125m.........................  2.E-07           3.E-07                  -         7.E+03           1.E+04                  -         BS/St/
Te-127m.........................  1.E-07           1.E-07                  -         4.E+03           4.E+03                  -         BS/St/
Te-127..........................  9.E-06           7.E-06                  -         4.E+05           3.E+05                  -         St/St/
Te-129m.........................  3.E-07           1.E-07                  -         1.E+04           4.E+03                  -         St/St/
Te-129..........................  3.E-05           3.E-05                  -         1.E+06           1.E+06                  -         St/St/
Te-131m.........................  2.E-07           2.E-07                  -         6.E+03           6.E+03                  -         T /T /
Te-131..........................  2.E-06           2.E-06                  -         8.E+04           8.E+04                  -         T /T /
Te-132..........................  9.E-08           9.E-08                  -         4.E+03           3.E+03                  -         T /T /
Te-133m.........................  2.E-06           2.E-06                  -         8.E+04           8.E+04                  -         T /T /
Te-133..........................  9.E-06           9.E-06                  -         4.E+05           4.E+05                  -         T /T /
Te-134..........................  1.E-05           1.E-05                  -         4.E+05           4.E+05                  -         T /T /
I-120m..........................  9.E-06                  -                -         3.E+05                  -                -         St/  /
I-120...........................  4.E-06                  -                -         1.E+05                  -                -         T /  /
I-121...........................  7.E-06                  -                -         3.E+05                  -                -         T /  /
I-123...........................  3.E-06                  -                -         1.E+05                  -                -         T /  /
I-124...........................  3.E-08                  -                -         1.E+03                  -                -         T /  /
I-125...........................  3.E-08                  -                -         1.E+03                  -                -         T /  /
I-126...........................  1.E-08                  -                -         5.E+02                  -                -         T /  /
I-128...........................  5.E-05                  -                -         2.E+06                  -                -         St/  /
I-129...........................  4.E-09                  -                -         1.E+02                  -                -         T /  /
I-130...........................  3.E-07                  -                -         1.E+04                  -                -         T /  /
I-131...........................  2.E-08                  -                -         7.E+02                  -                -         T /  /
I-132m..........................  4.E-06                  -                -         1.E+05                  -                -         T /  /
I-132...........................  3.E-06                  -                -         1.E+05                  -                -         T /  /

[[Page 476]]


I-133...........................  1.E-07                  -                -         4.E+03                  -                -         T /  /
I-134...........................  2.E-05                  -                -         7.E+05                  -                -         E /  /
I-135...........................  7.E-07                  -                -         2.E+04                  -                -         T /  /
Cs-125..........................  6.E-05                  -                -         2.E+06                  -                -         St/  /
Cs-127..........................  4.E-05                  -                -         2.E+06                  -                -         St/  /
Cs-129..........................  1.E-05                  -                -         5.E+05                  -                -         St/  /
Cs-130..........................  8.E-05                  -                -         3.E+06                  -                -         St/  /
Cs-131..........................  1.E-05                  -                -         5.E+05                  -                -         St/  /
Cs-132..........................  2.E-06                  -                -         6.E+04                  -                -         St/  /
Cs-134m.........................  6.E-05                  -                -         2.E+06                  -                -         St/  /
Cs-134..........................  4.E-08                  -                -         2.E+03                  -                -         St/  /
Cs-135m.........................  8.E-05                  -                -         3.E+06                  -                -         St/  /
Cs-135..........................  5.E-07                  -                -         2.E+04                  -                -         St/  /
Cs-136..........................  3.E-07                  -                -         1.E+04                  -                -         St/  /
Cs-137..........................  7.E-08                  -                -         2.E+03                  -                -         St/  /
Cs-138..........................  2.E-05                  -                -         9.E+05                  -                -         St/  /
Ba-126..........................  6.E-06                  -                -         2.E+05                  -                -         St/  /
Ba-128..........................  7.E-07                  -                -         3.E+04                  -                -         St/  /
Ba-131m.........................  6.E-04                  -                -         2.E+07                  -                -         St/  /
Ba-131..........................  3.E-06                  -                -         1.E+05                  -                -         St/  /
Ba-133m.........................  4.E-06                  -                -         1.E+05                  -                -         St/  /
Ba-133..........................  3.E-07                  -                -         1.E+04                  -                -         St/  /
Ba-135m.........................  5.E-06                  -                -         2.E+05                  -                -         St/  /
Ba-139..........................  1.E-05                  -                -         5.E+05                  -                -         St/  /
Ba-140..........................  6.E-07                  -                -         2.E+04                  -                -         St/  /
Ba-141..........................  3.E-05                  -                -         1.E+06                  -                -         St/  /
Ba-142..........................  6.E-05                  -                -         2.E+06                  -                -         St/  /
La-131..........................  5.E-05           7.E-05                  -         2.E+06           3.E+06                  -         St/St/
La-132..........................  4.E-06           5.E-06                  -         2.E+05           2.E+05                  -         St/St/
La-135..........................  4.E-05           4.E-05                  -         2.E+06           2.E+06                  -         St/St/
La-137..........................  3.E-08           1.E-07                  -         1.E+03           4.E+03                  -         L /E /
La-138..........................  2.E-09           6.E-09                  -         5.E+01           2.E+02                  -         St/St/
La-140..........................  6.E-07           5.E-07                  -         2.E+04           2.E+04                  -         St/St/
La-141..........................  4.E-06           5.E-06                  -         1.E+05           2.E+05                  -         St/St/
La-142..........................  9.E-06           1.E-05                  -         4.E+05           5.E+05                  -         St/St/
La-143..........................  4.E-05           4.E-05                  -         2.E+06           1.E+06                  -         St/St/
Ce-134..........................         -         3.E-07           3.E-07                  -         1.E+04           1.E+04             /St/St
Ce-135..........................         -         2.E-06           2.E-06                  -         6.E+04           5.E+04             /St/St
Ce-137m.........................         -         2.E-06           2.E-06                  -         7.E+04           6.E+04             /St/St
Ce-137..........................         -         6.E-05           5.E-05                  -         2.E+06           2.E+06             /St/St
Ce-139..........................         -         3.E-07           3.E-07                  -         1.E+04           1.E+04             /St/St
Ce-141..........................         -         3.E-07           2.E-07                  -         1.E+04           9.E+03             /St/St
Ce-143..........................         -         8.E-07           7.E-07                  -         3.E+04           2.E+04             /St/St
Ce-144..........................         -         1.E-08           6.E-09                  -         4.E+02           2.E+02             /St/St
Pr-136..........................         -         1.E-04           9.E-05                  -         4.E+06           4.E+06             /St/St
Pr-137..........................         -         6.E-05           6.E-05                  -         2.E+06           2.E+06             /St/St
Pr-138m.........................         -         2.E-05           2.E-05                  -         8.E+05           7.E+05             /St/St
Pr-139..........................         -         5.E-05           5.E-05                  -         2.E+06           2.E+06             /St/St
Pr-142m.........................         -         7.E-05           6.E-05                  -         3.E+06           2.E+06             /St/St
Pr-142..........................         -         8.E-07           8.E-07                  -         3.E+04           3.E+04             /St/St
Pr-143..........................         -         3.E-07           3.E-07                  -         1.E+04           1.E+04             /St/St
Pr-144..........................         -         5.E-05           5.E-05                  -         2.E+06           2.E+06             /St/St
Pr-145..........................         -         4.E-06           3.E-06                  -         1.E+05           1.E+05             /St/St
Pr-147..........................         -         8.E-05           8.E-05                  -         3.E+06           3.E+06             /St/St
Nd-136..........................         -         2.E-05           2.E-05                  -         9.E+05           8.E+05             /St/St
Nd-138..........................         -         3.E-06           2.E-06                  -         1.E+05           8.E+04             /St/St
Nd-139m.........................         -         7.E-06           6.E-06                  -         3.E+05           2.E+05             /St/St
Nd-139..........................         -         1.E-04           1.E-04                  -         5.E+06           4.E+06             /St/St
Nd-141..........................         -         3.E-04           3.E-04                  -         1.E+07           9.E+06             /St/St
Nd-147..........................         -         4.E-07           3.E-07                  -         2.E+04           1.E+04             /St/St
Nd-149..........................         -         1.E-05           1.E-05                  -         4.E+05           4.E+05             /St/St
Nd-151..........................         -         8.E-05           8.E-05                  -         3.E+06           3.E+06             /St/St
Pm-141..........................         -         8.E-05           7.E-05                  -         3.E+06           3.E+06             /St/St
Pm-143..........................         -         3.E-07           3.E-07                  -         9.E+03           1.E+04             /St/St
Pm-144..........................         -         5.E-08           5.E-08                  -         2.E+03           2.E+03             /St/St
Pm-145..........................         -         7.E-08           8.E-08                  -         3.E+03           3.E+03             /BS/St
Pm-146..........................         -         2.E-08           2.E-08                  -         8.E+02           7.E+02             /St/St
Pm-147..........................         -         6.E-08           6.E-08                  -         2.E+03           2.E+03             /BS/St
Pm-148m.........................         -         1.E-07           1.E-07                  -         5.E+03           5.E+03             /St/St
Pm-148..........................         -         2.E-07           2.E-07                  -         8.E+03           8.E+03             /St/St
Pm-149..........................         -         8.E-07           8.E-07                  -         3.E+04           3.E+04             /St/St

[[Page 477]]


Pm-150..........................         -         8.E-06           7.E-06                  -         3.E+05           3.E+05             /St/St
Pm-151..........................         -         2.E-06           1.E-06                  -         6.E+04           5.E+04             /St/St
Sm-141m.........................         -         4.E-05                  -                -         2.E+06                  -           /St/
Sm-141..........................         -         7.E-05                  -                -         3.E+06                  -           /St/
Sm-142..........................         -         1.E-05                  -                -         4.E+05                  -           /St/
Sm-145..........................         -         2.E-07                  -                -         8.E+03                  -           /St/
Sm-146..........................         -         1.E-11                  -                -         6.E-01                  -           /BS/
Sm-147..........................         -         2.E-11                  -                -         6.E-01                  -           /BS/
Sm-151..........................         -         4.E-08                  -                -         2.E+03                  -           /BS/
Sm-153..........................         -         1.E-06                  -                -         4.E+04                  -           /St/
Sm-155..........................         -         9.E-05                  -                -         3.E+06                  -           /St/
Sm-156..........................         -         4.E-06                  -                -         1.E+05                  -           /St/
Eu-145..........................         -         8.E-07                  -                -         3.E+04                  -           /St/
Eu-146..........................         -         5.E-07                  -                -         2.E+04                  -           /St/
Eu-147..........................         -         7.E-07                  -                -         3.E+04                  -           /St/
Eu-148..........................         -         2.E-07                  -                -         6.E+03                  -           /St/
Eu-149..........................         -         1.E-06                  -                -         5.E+04                  -           /St/
Eu-150 (12 h)...................         -         3.E-06                  -                -         1.E+05                  -           /St/
Eu-150 (34 yr)..................         -         8.E-09                  -                -         3.E+02                  -           /St/
Eu-152m.........................         -         3.E-06                  -                -         1.E+05                  -           /St/
Eu-152..........................         -         1.E-08                  -                -         4.E+02                  -           /St/
Eu-154..........................         -         8.E-09                  -                -         3.E+02                  -           /St/
Eu-155..........................         -         4.E-08                  -                -         1.E+03                  -           /BS/
Eu-156..........................         -         2.E-07                  -                -         7.E+03                  -           /St/
Eu-157..........................         -         2.E-06                  -                -         7.E+04                  -           /St/
Eu-158..........................         -         2.E-05                  -                -         9.E+05                  -           /St/
Gd-145..........................  7.E-05           7.E-05                  -         2.E+06           3.E+06                  -         St/St/
Gd-146..........................  5.E-08           1.E-07                  -         2.E+03           4.E+03                  -         St/St/
Gd-147..........................  2.E-06           2.E-06                  -         6.E+04           5.E+04                  -         St/St/
Gd-148..........................  3.E-12           1.E-11                  -         1.E-01           5.E-01                  -         BS/BS/
Gd-149..........................  9.E-07           1.E-06                  -         3.E+04           4.E+04                  -         St/St/
Gd-151..........................  2.E-07           5.E-07                  -         6.E+03           2.E+04                  -         BS/St/
Gd-152..........................  4.E-12           2.E-11                  -         2.E-01           6.E-01                  -         BS/BS/
Gd-153..........................  6.E-08           3.E-07                  -         2.E+03           9.E+03                  -         BS/St/
Gd-159..........................  3.E-06           2.E-06                  -         1.E+05           9.E+04                  -         St/St/
Tb-147..........................         -         1.E-05                  -                -         5.E+05                  -           /St/
Tb-149..........................         -         3.E-07                  -                -         1.E+04                  -           /St/
Tb-150..........................         -         9.E-06                  -                -         3.E+05                  -           /St/
Tb-151..........................         -         4.E-06                  -                -         1.E+05                  -           /St/
Tb-153..........................         -         3.E-06                  -                -         1.E+05                  -           /St/
Tb-154..........................         -         2.E-06                  -                -         7.E+04                  -           /St/
Tb-155..........................         -         3.E-06                  -                -         1.E+05                  -           /St/
Tb-156m (24 h)..................         -         3.E-06                  -                -         1.E+05                  -           /St/
Tb-156m (5 h)...................         -         1.E-05                  -                -         4.E+05                  -           /St/
Tb-156..........................         -         6.E-07                  -                -         2.E+04                  -           /St/
Tb-157..........................         -         1.E-07                  -                -         5.E+03                  -           /BS/
Tb-158..........................         -         8.E-09                  -                -         3.E+02                  -           /St/
Tb-160..........................         -         1.E-07                  -                -         4.E+03                  -           /St/
Tb-161..........................         -         7.E-07                  -                -         2.E+04                  -           /St/
Dy-155..........................         -         1.E-05                  -                -         4.E+05                  -           /St/
Dy-157..........................         -         3.E-05                  -                -         1.E+06                  -           /St/
Dy-159..........................         -         1.E-06                  -                -         4.E+04                  -           /St/
Dy-165..........................         -         2.E-05                  -                -         7.E+05                  -           /St/
Dy-166..........................         -         3.E-07                  -                -         1.E+04                  -           /St/
Ho-155..........................         -         7.E-05                  -                -         2.E+06                  -           /St/
Ho-157..........................         -         6.E-04                  -                -         2.E+07                  -           /St/
Ho-159..........................         -         4.E-04                  -                -         2.E+07                  -           /St/
Ho-161..........................         -         2.E-04                  -                -         7.E+06                  -           /St/
Ho-162m.........................         -         1.E-04                  -                -         4.E+06                  -           /St/
Ho-162..........................         -         1.E-03                  -                -         4.E+07                  -           /St/
Ho-164m.........................         -         1.E-04                  -                -         5.E+06                  -           /St/
Ho-164..........................         -         3.E-04                  -                -         1.E+07                  -           /St/
Ho-166m.........................         -         3.E-09                  -                -         1.E+02                  -           /St/
Ho-166..........................         -         7.E-07                  -                -         3.E+04                  -           /St/
Ho-167..........................         -         2.E-05                  -                -         9.E+05                  -           /St/
Er-161..........................         -         3.E-05                  -                -         1.E+06                  -           /St/
Er-165..........................         -         8.E-05                  -                -         3.E+06                  -           /St/
Er-169..........................         -         1.E-06                  -                -         4.E+04                  -           /St/
Er-171..........................         -         4.E-06                  -                -         2.E+05                  -           /St/
Er-172..........................         -         6.E-07                  -                -         2.E+04                  -           /St/
Tm-162..........................         -         1.E-04                  -                -         4.E+06                  -           /St/

[[Page 478]]


Tm-166..........................         -         6.E-06                  -                -         2.E+05                  -           /St/
Tm-167..........................         -         8.E-07                  -                -         3.E+04                  -           /St/
Tm-170..........................         -         9.E-08                  -                -         3.E+03                  -           /St/
Tm-171..........................         -         1.E-07                  -                -         5.E+03                  -           /BS/
Tm-172..........................         -         5.E-07                  -                -         2.E+04                  -           /St/
Tm-173..........................         -         5.E-06                  -                -         2.E+05                  -           /St/
Tm-175..........................         -         1.E-04                  -                -         4.E+06                  -           /St/
Yb-162..........................         -         1.E-04           1.E-04                  -         5.E+06           4.E+06             /St/St
Yb-166..........................         -         8.E-07           8.E-07                  -         3.E+04           3.E+04             /St/St
Yb-167..........................         -         3.E-04           3.E-04                  -         1.E+07           1.E+07             /St/St
Yb-169..........................         -         3.E-07           3.E-07                  -         1.E+04           1.E+04             /St/St
Yb-175..........................         -         1.E-06           1.E-06                  -         5.E+04           5.E+04             /St/St
Yb-177..........................         -         2.E-05           2.E-05                  -         8.E+05           7.E+05             /St/St
Yb-178..........................         -         2.E-05           1.E-05                  -         6.E+05           6.E+05             /St/St
Lu-169..........................         -         2.E-06           2.E-06                  -         7.E+04           7.E+04             /St/St
Lu-170..........................         -         9.E-07           8.E-07                  -         3.E+04           3.E+04             /St/St
Lu-171..........................         -         8.E-07           8.E-07                  -         3.E+04           3.E+04             /St/St
Lu-172..........................         -         5.E-07           5.E-07                  -         2.E+04           2.E+04             /St/St
Lu-173..........................         -         1.E-07           1.E-07                  -         4.E+03           4.E+03             /BS/St
Lu-174m.........................         -         1.E-07           9.E-08                  -         4.E+03           3.E+03             /BS/St
Lu-174..........................         -         5.E-08           7.E-08                  -         2.E+03           2.E+03             /BS/St
Lu-176m.........................         -         1.E-05           1.E-05                  -         4.E+05           4.E+05             /St/St
Lu-176..........................         -         2.E-09           3.E-09                  -         7.E+01           1.E+02             /BS/St
Lu-177m.........................         -         5.E-08           3.E-08                  -         2.E+03           1.E+03             /BS/St
Lu-177..........................         -         9.E-07           9.E-07                  -         3.E+04           3.E+04             /St/St
Lu-178m.........................         -         8.E-05           7.E-05                  -         3.E+06           3.E+06             /St/St
Lu-178..........................         -         5.E-05           5.E-05                  -         2.E+06           2.E+06             /St/St
Lu-179..........................         -         8.E-06           6.E-06                  -         3.E+05           2.E+05             /St/St
Hf-170..........................  2.E-06           2.E-06                  -         9.E+04           7.E+04                  -         St/St/
Hf-172..........................  4.E-09           2.E-08                  -         1.E+02           6.E+02                  -         BS/BS/
Hf-173..........................  5.E-06           5.E-06                  -         2.E+05           2.E+05                  -         St/St/
Hf-175..........................  4.E-07           5.E-07                  -         2.E+04           2.E+04                  -         BS/St/
Hf-177m.........................  2.E-05           4.E-05                  -         9.E+05           1.E+06                  -         St/St/
Hf-178m.........................  6.E-10           2.E-09                  -         2.E+01           8.E+01                  -         BS/BS/
Hf-179m.........................  1.E-07           3.E-07                  -         5.E+03           9.E+03                  -         BS/St/
Hf-180m.........................  9.E-06           1.E-05                  -         3.E+05           4.E+05                  -         St/St/
Hf-181..........................  7.E-08           2.E-07                  -         3.E+03           7.E+03                  -         BS/St/
Hf-182m.........................  4.E-05           6.E-05                  -         1.E+06           2.E+06                  -         St/St/
Hf-182..........................  3.E-10           1.E-09                  -         1.E+01           5.E+01                  -         BS/BS/
Hf-183..........................  2.E-05           2.E-05                  -         7.E+05           8.E+05                  -         St/St/
Hf-184..........................  3.E-06           3.E-06                  -         1.E+05           1.E+05                  -         St/St/
Ta-172..........................         -         5.E-05           4.E-05                  -         2.E+06           2.E+06             /St/St
Ta-173..........................         -         8.E-06           7.E-06                  -         3.E+05           3.E+05             /St/St
Ta-174..........................         -         4.E-05           4.E-05                  -         1.E+06           1.E+06             /St/St
Ta-175..........................         -         7.E-06           6.E-06                  -         3.E+05           2.E+05             /St/St
Ta-176..........................         -         5.E-06           5.E-06                  -         2.E+05           2.E+05             /St/St
Ta-177..........................         -         8.E-06           7.E-06                  -         3.E+05           3.E+05             /St/St
Ta-178..........................         -         4.E-05           3.E-05                  -         1.E+06           1.E+06             /St/St
Ta-179..........................         -         2.E-06           4.E-07                  -         8.E+04           1.E+04             /St/St
Ta-180m.........................         -         3.E-05           2.E-05                  -         1.E+06           9.E+05             /St/St
Ta-180..........................         -         2.E-07           1.E-08                  -         7.E+03           4.E+02             /St/St
Ta-182m.........................         -         2.E-04           2.E-04                  -         8.E+06           6.E+06             /St/St
Ta-182..........................         -         1.E-07           6.E-08                  -         5.E+03           2.E+03             /St/St
Ta-183..........................         -         5.E-07           4.E-07                  -         2.E+04           2.E+04             /St/St
Ta-184..........................         -         2.E-06           2.E-06                  -         8.E+04           7.E+04             /St/St
Ta-185..........................         -         3.E-05           3.E-05                  -         1.E+06           1.E+06             /St/St
Ta-186..........................         -         1.E-04           9.E-05                  -         4.E+06           3.E+06             /St/St
W-176...........................  2.E-05                  -                -         8.E+05                  -                -         St/  /
W-177...........................  4.E-05                  -                -         1.E+06                  -                -         St/  /
W-178...........................  8.E-06                  -                -         3.E+05                  -                -         St/  /
W-179...........................  7.E-04                  -                -         3.E+07                  -                -         St/  /
W-181...........................  1.E-05                  -                -         5.E+05                  -                -         St/  /
W-185...........................  3.E-06                  -                -         1.E+05                  -                -         St/  /
W-187...........................  4.E-06                  -                -         2.E+05                  -                -         St/  /
W-188...........................  5.E-07                  -                -         2.E+04                  -                -         St/  /
Re-177..........................  1.E-04           2.E-04                  -         4.E+06           5.E+06                  -         St/St/
Re-178..........................  1.E-04           1.E-04                  -         4.E+06           4.E+06                  -         St/St/
Re-181..........................  4.E-06           4.E-06                  -         1.E+05           1.E+05                  -         St/St/
Re-182 (64 h)...................  1.E-06           9.E-07                  -         4.E+04           3.E+04                  -         St/St/
Re-182 (12 h)...................  5.E-06           6.E-06                  -         2.E+05           2.E+05                  -         St/St/
Re-184m.........................  1.E-06           2.E-07                  -         5.E+04           7.E+03                  -         St/St/

[[Page 479]]


Re-184..........................  2.E-06           6.E-07                  -         6.E+04           2.E+04                  -         St/St/
Re-186m.........................  7.E-07           6.E-08                  -         3.E+04           2.E+03                  -         SW/St/
Re-186..........................  1.E-06           7.E-07                  -         5.E+04           3.E+04                  -         St/St/
Re-187..........................  3.E-04           4.E-05                  -         1.E+07           2.E+06                  -         SW/St/
Re-188m.........................  6.E-05           6.E-05                  -         2.E+06           2.E+06                  -         St/St/
Re-188..........................  1.E-06           1.E-06                  -         4.E+04           4.E+04                  -         St/St/
Re-189..........................  2.E-06           2.E-06                  -         8.E+04           7.E+04                  -         St/St/
Os-180..........................  2.E-04           2.E-04           2.E-04           6.E+06           8.E+06           7.E+06           St/St/St
Os-181..........................  2.E-05           2.E-05           2.E-05           7.E+05           7.E+05           7.E+05           St/St/St
Os-182..........................  2.E-06           2.E-06           2.E-06           9.E+04           7.E+04           6.E+04           St/St/St
Os-185..........................  2.E-07           3.E-07           3.E-07           8.E+03           1.E+04           1.E+04           St/St/St
Os-189m.........................  1.E-04           9.E-05           7.E-05           4.E+06           3.E+06           3.E+06           St/St/St
Os-191m.........................  1.E-05           9.E-06           7.E-06           4.E+05           3.E+05           3.E+05           St/St/St
Os-191..........................  9.E-07           7.E-07           6.E-07           3.E+04           3.E+04           2.E+04           St/St/St
Os-193..........................  2.E-06           1.E-06           1.E-06           7.E+04           5.E+04           4.E+04           St/St/St
Os-194..........................  2.E-08           2.E-08           3.E-09           7.E+02           9.E+02           1.E+02           St/St/St
Ir-182..........................  6.E-05           6.E-05           5.E-05           2.E+06           2.E+06           2.E+06           St/St/St
Ir-184..........................  1.E-05           1.E-05           1.E-05           4.E+05           5.E+05           4.E+05           St/St/St
Ir-185..........................  5.E-06           5.E-06           4.E-06           2.E+05           2.E+05           2.E+05           St/St/St
Ir-186..........................  3.E-06           3.E-06           2.E-06           1.E+05           1.E+05           9.E+04           St/St/St
Ir-187..........................  1.E-05           1.E-05           1.E-05           5.E+05           5.E+05           4.E+05           St/St/St
Ir-188..........................  2.E-06           2.E-06           1.E-06           7.E+04           6.E+04           5.E+04           St/St/St
Ir-189..........................  2.E-06           2.E-06           2.E-06           7.E+04           6.E+04           6.E+04           St/St/St
Ir-190m.........................  8.E-05           9.E-05           8.E-05           3.E+06           3.E+06           3.E+06           St/St/St
Ir-190..........................  4.E-07           4.E-07           4.E-07           1.E+04           2.E+04           1.E+04           St/St/St
Ir-192m.........................  4.E-08           9.E-08           6.E-09           1.E+03           3.E+03           2.E+02           St/St/St
Ir-192..........................  1.E-07           2.E-07           9.E-08           4.E+03           6.E+03           3.E+03           St/St/St
Ir-194m.........................  4.E-08           7.E-08           4.E-08           2.E+03           3.E+03           2.E+03           St/St/St
Ir-194..........................  1.E-06           8.E-07           8.E-07           5.E+04           3.E+04           3.E+04           St/St/St
Ir-195m.........................  1.E-05           1.E-05           9.E-06           4.E+05           4.E+05           3.E+05           St/St/St
Ir-195..........................  2.E-05           2.E-05           2.E-05           6.E+05           8.E+05           7.E+05           St/St/St
Pt-186..........................  2.E-05                  -                -         6.E+05                  -                -         St/  /
Pt-188..........................  7.E-07                  -                -         3.E+04                  -                -         St/  /
Pt-189..........................  1.E-05                  -                -         4.E+05                  -                -         St/  /
Pt-191..........................  3.E-06                  -                -         1.E+05                  -                -         St/  /
Pt-193m.........................  2.E-06                  -                -         9.E+04                  -                -         St/  /
Pt-193..........................  1.E-05                  -                -         4.E+05                  -                -         St/  /
Pt-195m.........................  2.E-06                  -                -         7.E+04                  -                -         St/  /
Pt-197m.........................  2.E-05                  -                -         7.E+05                  -                -         St/  /
Pt-197..........................  4.E-06                  -                -         2.E+05                  -                -         St/  /
Pt-199..........................  6.E-05                  -                -         2.E+06                  -                -         St/  /
Pt-200..........................  1.E-06                  -                -         5.E+04                  -                -         St/  /
Au-193..........................  1.E-05           8.E-06           8.E-06           4.E+05           3.E+05           3.E+05           St/St/St
Au-194..........................  3.E-06           2.E-06           2.E-06           1.E+05           9.E+04           8.E+04           St/St/St
Au-195..........................  5.E-06           6.E-07           2.E-07           2.E+05           2.E+04           6.E+03           St/St/St
Au-198m.........................  1.E-06           5.E-07           5.E-07           4.E+04           2.E+04           2.E+04           St/St/St
Au-198..........................  2.E-06           7.E-07           7.E-07           6.E+04           3.E+04           3.E+04           St/St/St
Au-199..........................  4.E-06           2.E-06           2.E-06           1.E+05           6.E+04           6.E+04           St/St/St
Au-200m.........................  1.E-06           1.E-06           1.E-06           5.E+04           4.E+04           4.E+04           St/St/St
Au-200..........................  3.E-05           3.E-05           3.E-05           1.E+06           1.E+06           1.E+06           St/St/St
Au-201..........................  9.E-05           1.E-04           9.E-05           3.E+06           4.E+06           4.E+06           St/St/St
Hg-193m (Org)...................  6.E-06                  -                -         2.E+05                  -                -         St/  /
Hg-193m (Inorg).................  4.E-06           3.E-06                  -         1.E+05           1.E+05                  -         St/St/
Hg-193m (Vapor).................         -         4.E-06                  -                -         1.E+05                  -           /St/
Hg-193 (Org)....................  3.E-05                  -                -         1.E+06                  -                -         St/  /
Hg-193 (Inorg)..................  2.E-05           2.E-05                  -         7.E+05           6.E+05                  -         St/St/
Hg-193 (Vapor)..................         -         1.E-05                  -                -         5.E+05                  -           /St/
Hg-194 (Org)....................  1.E-08                  -                -         4.E+02                  -                -         St/  /
Hg-194 (Inorg)..................  2.E-08           5.E-08                  -         7.E+02           2.E+03                  -         St/St/
Hg-194 (Vapor)..................         -         1.E-08                  -                -         5.E+02                  -           /St/
Hg-195m (Org)...................  3.E-06                  -                -         9.E+04                  -                -         St/  /
Hg-195m (Inorg).................  2.E-06           2.E-06                  -         8.E+04           6.E+04                  -         St/St/
Hg-195m (Vapor).................         -             -2.E-06             -                -         6.E+04                  -           /St/
Hg-195 (Org)....................  2.E-05                  -                -         7.E+05                  -                -         St/  /
Hg-195 (Inorg)..................  1.E-05           1.E-05                  -         5.E+05           5.E+05                  -         St/St/
Hg-195 (Vapor)..................         -         1.E-05                  -                -         5.E+05                  -           /St/
Hg-197m (Org)...................  4.E-06                  -                -         1.E+05                  -                -         St/  /
Hg-197m (Inorg).................  3.E-06           2.E-06                  -         1.E+05           8.E+04                  -         St/St/
Hg-197m (Vapor).................         -         2.E-06                  -                -         8.E+04                  -           /St/
Hg-197 (Org)....................  6.E-06                  -                -         2.E+05                  -                -         St/  /
Hg-197 (Inorg)..................  5.E-06           4.E-06                  -         2.E+05           1.E+05                  -         St/St/

[[Page 480]]


Hg-197 (Vapor)..................         -         3.E-05                  -                -         1.E+05                  -           /St/
Hg-199m (Org)...................  7.E-05                  -                -         3.E+06                  -                -         St/  /
Hg-199m (Inorg).................  6.E-05           7.E-05                  -         2.E+06           3.E+06                  -         St/St/
Hg-199m (Vapor).................         -         3.E-05                  -                -         1.E+06                  -           /St/
Hg-203 (Org)....................  3.E-07                  -                -         1.E+04                  -                -         St/  /
Hg-203 (Inorg)..................  5.E-07           5.E-07                  -         2.E+04           2.E+04                  -         St/St/
Hg-203 (Vapor)..................         -         3.E-07                  -                -         1.E+04                  -           /St/
Tl-194m.........................  6.E-05                  -                -         2.E+06                  -                -         St/  /
Tl-194..........................  3.E-04                  -                -         9.E+06                  -                -         St/  /
Tl-195..........................  5.E-05                  -                -         2.E+06                  -                -         St/  /
Tl-197..........................  5.E-05                  -                -         2.E+06                  -                -         St/  /
Tl-198m.........................  2.E-05                  -                -         9.E+05                  -                -         St/  /
Tl-198..........................  1.E-05                  -                -         5.E+05                  -                -         St/  /
Tl-199..........................  3.E-05                  -                -         1.E+06                  -                -         St/  /
Tl-200..........................  5.E-06                  -                -         2.E+05                  -                -         St/  /
Tl-201..........................  9.E-06                  -                -         3.E+05                  -                -         St/  /
Tl-202..........................  2.E-06                  -                -         8.E+04                  -                -         St/  /
Tl-204..........................  9.E-07                  -                -         3.E+04                  -                -         St/  /
Pb-195m.........................  8.E-05                  -                -         3.E+06                  -                -         St/  /
Pb-198..........................  3.E-05                  -                -         1.E+06                  -                -         St/  /
Pb-199..........................  3.E-05                  -                -         1.E+06                  -                -         St/  /
Pb-200..........................  3.E-06                  -                -         1.E+05                  -                -         St/  /
Pb-201..........................  9.E-06                  -                -         3.E+05                  -                -         St/  /
Pb-202m.........................  1.E-05                  -                -         4.E+05                  -                -         St/  /
Pb-202..........................  2.E-08                  -                -         8.E+02                  -                -         St/  /
Pb-203..........................  4.E-06                  -                -         2.E+05                  -                -         St/  /
Pb-205..........................  6.E-07                  -                -         2.E+04                  -                -         St/  /
Pb-209..........................  2.E-05                  -                -         9.E+05                  -                -         St/  /
Pb-210..........................  1.E-10                  -                -         4.E+00                  -                -         BS/  /
Pb-211..........................  3.E-07                  -                -         1.E+04                  -                -         St/  /
Pb-212..........................  1.E-08                  -                -         5.E+02                  -                -         St/  /
Pb-214..........................  3.E-07                  -                -         1.E+04                  -                -         St/  /
Bi-200..........................  3.E-05           4.E-05                  -         1.E+06           2.E+06                  -         St/St/
Bi-201..........................  1.E-05           2.E-05                  -         4.E+05           6.E+05                  -         St/St/
Bi-202..........................  2.E-05           3.E-05                  -         6.E+05           1.E+06                  -         St/St/
Bi-203..........................  3.E-06           2.E-06                  -         1.E+05           9.E+04                  -         St/St/
Bi-205..........................  1.E-06           5.E-07                  -         4.E+04           2.E+04                  -         St/St/
Bi-206..........................  6.E-07           4.E-07                  -         2.E+04           1.E+04                  -         St/St/
Bi-207..........................  7.E-07           2.E-07                  -         3.E+04           5.E+03                  -         St/St/
Bi-210m.........................  2.E-09           3.E-10                  -         7.E+01           1.E+01                  -         K /St/
Bi-210..........................  1.E-07           1.E-08                  -         4.E+03           4.E+02                  -         K /St/
Bi-212..........................  1.E-07           1.E-07                  -         4.E+03           4.E+03                  -         St/St/
Bi-213..........................  1.E-07           2.E-07                  -         5.E+03           5.E+03                  -         St/St/
Bi-214..........................  3.E-07           4.E-07                  -         1.E+04           1.E+04                  -         St/St/
Po-203..........................  3.E-05           4.E-05                  -         1.E+06           1.E+06                  -         St/St/
Po-205..........................  2.E-05           3.E-05                  -         6.E+05           1.E+06                  -         St/St/
Po-207..........................  1.E-05           1.E-05                  -         4.E+05           4.E+05                  -         St/St/
Po-210..........................  3.E-10           3.E-10                  -         1.E+01           1.E+01                  -         E /St/
At-207..........................  1.E-06           9.E-07                  -         4.E+04           3.E+04                  -         St/St/
At-211..........................  3.E-08           2.E-08                  -         1.E+03           8.E+02                  -         St/St/
Rn-220..........................  8.E-09 4              --\4\            --\4\       3.E+02 4              --\4\            --\4\             --\4\
Rn-222..........................  3.E-08 4              --\4\            --\4\       1.E+03 4              --\4\            --\4\             --\4\
Fr-222..........................  2.E-07                  -                -         7.E+03                  -                -         St/  /
Fr-223..........................  3.E-07                  -                -         1.E+04                  -                -         St/  /
Ra-223..........................         -         3.E-10                  -                -         1.E+01                  -           /St/
Ra-224..........................         -         7.E-10                  -                -         3.E+01                  -           /St/
Ra-225..........................         -         3.E-10                  -                -         1.E+01                  -           /St/
Ra-226..........................         -         3.E-10                  -                -         1.E+01                  -           /St/
Ra-227..........................         -         6.E-06                  -                -         2.E+05                  -           /BS/
Ra-228..........................         -         5.E-10                  -                -         2.E+01                  -           /St/
Ac-224..........................  1.E-08           2.E-08           2.E-08           4.E+02           8.E+02           7.E+02           BS/St/St
Ac-225..........................  1.E-10           3.E-10           3.E-10           4.E+00           1.E+01           1.E+01           BS/St/St
Ac-226..........................  1.E-09           2.E-09           2.E-09           5.E+01           8.E+01           7.E+01           BS/St/St
Ac-227..........................  2.E-13           7.E-13           2.E-12           7.E-03           3.E-02           6.E-02           BS/BS/St
Ac-228..........................  4.E-09           2.E-08           2.E-08           2.E+02           6.E+02           7.E+02           BS/BS/St
Th-226..........................         -         7.E-08           6.E-08                  -         2.E+03           2.E+03             /St/St
Th-227..........................         -         1.E-10           1.E-10                  -         5.E+00           5.E+00             /St/St
Th-228..........................         -         4.E-12           7.E-12                  -         2.E-01           3.E-01             /BS/St
Th-229..........................         -         4.E-13           1.E-12                  -         1.E-02           4.E-02             /BS/BS
Th-230..........................         -         3.E-12           7.E-12                  -         9.E-02           2.E-01             /BS/BS
Th-231..........................         -         3.E-06           3.E-06                  -         1.E+05           1.E+05             /St/St

[[Page 481]]


Th-232..........................         -         5.E-13           1.E-12                  -         2.E-02           4.E-02             /BS/BS
Th-234..........................         -         9.E-08           6.E-08                  -         3.E+03           2.E+03             /St/St
Pa-227..........................         -         5.E-08           4.E-08                  -         2.E+03           2.E+03             /St/St
Pa-228..........................         -         5.E-09           5.E-09                  -         2.E+02           2.E+02             /BS/St
Pa-230..........................         -         2.E-09           1.E-09                  -         7.E+01           5.E+01             /St/St
Pa-231..........................         -         7.E-13           2.E-12                  -         2.E-02           6.E-02             /BS/BS
Pa-232..........................         -         9.E-09           2.E-08                  -         3.E+02           9.E+02             /BS/BS
Pa-233..........................         -         3.E-07           2.E-07                  -         1.E+04           9.E+03             /St/St
Pa-234..........................         -         3.E-06           3.E-06                  -         1.E+05           1.E+05             /St/St
U-230...........................  2.E-10           1.E-10           1.E-10           6.E+00           5.E+00           4.E+00           BS/St/St
U-231...........................  3.E-06           2.E-06           2.E-06           1.E+05           9.E+04           7.E+04           St/St/St
U-232...........................  9.E-11           2.E-10           3.E-12           3.E+00           6.E+00           1.E-01           BS/St/St
U-233...........................  5.E-10           3.E-10           2.E-11           2.E+01           1.E+01           6.E-01           BS/St/St
U-234...........................  5.E-10           3.E-10           2.E-11           2.E+01           1.E+01           6.E-01           BS/St/St
U-235...........................  6.E-10           3.E-10           2.E-11           2.E+01           1.E+01           6.E-01           BS/St/St
U-236...........................  6.E-10           3.E-10           2.E-11           2.E+01           1.E+01           6.E-01           BS/St/St
U-237...........................  1.E-06           7.E-07           6.E-07           4.E+04           3.E+04           2.E+04           St/St/St
U-238...........................  6.E-10           3.E-10           2.E-11           2.E+01           1.E+01           6.E-01           BS/St/St
U-239...........................  8.E-05           7.E-05           6.E-05           3.E+06           3.E+06           2.E+06           St/St/St
U-240...........................  2.E-06           1.E-06           1.E-06           6.E+04           4.E+04           4.E+04           St/St/St
Np-232..........................         -         1.E-06                  -                -         4.E+04                  -           /BS/
Np-233..........................         -         1.E-03                  -                -         5.E+07                  -           /St/
Np-234..........................         -         1.E-06                  -                -         4.E+04                  -           /St/
Np-235..........................         -         5.E-07                  -                -         2.E+04                  -           /BS/
Np-236 (1.E+05 yr)..............         -         1.E-11                  -                -         4.E-01                  -           /BS/
Np-236 (22 h)...................         -         2.E-08                  -                -         6.E+02                  -           /BS/
Np-237..........................         -         2.E-12                  -                -         9.E-02                  -           /BS/
Np-238..........................         -         4.E-08                  -                -         1.E+03                  -           /BS/
Np-239..........................         -         1.E-06                  -                -         4.E+04                  -           /St/
Np-240..........................         -         3.E-05                  -                -         1.E+06                  -           /St/
Pu-234..........................         -         9.E-08           8.E-08                  -         3.E+03           3.E+03             /St/St
Pu-235..........................         -         1.E-03           1.E-03                  -         5.E+07           4.E+07             /St/St
Pu-236..........................         -         7.E-12           1.E-11                  -         3.E-01           6.E-01             /BS/St
Pu-237..........................         -         1.E-06           1.E-06                  -         5.E+04           5.E+04             /St/St
Pu-238..........................         -         3.E-12           7.E-12                  -         9.E-02           3.E-01             /BS/BS
Pu-239..........................         -         2.E-12           6.E-12                  -         8.E-02           2.E-01             /BS/BS
Pu-240..........................         -         2.E-12           6.E-12                  -         8.E-02           2.E-01             /BS/BS
Pu-241..........................         -         1.E-10           3.E-10                  -         4.E+00           1.E+01             /BS/BS
Pu-242..........................         -         2.E-12           6.E-12                  -         9.E-02           2.E-01             /BS/BS
Pu-243..........................         -         1.E-05           1.E-05                  -         5.E+05           6.E+05             /St/St
Pu-244..........................         -         2.E-12           6.E-12                  -         9.E-02           2.E-01             /BS/BS
Pu-245..........................         -         2.E-06           2.E-06                  -         7.E+04           6.E+04             /St/St
Am-237..........................         -         1.E-04                  -                -         4.E+06                  -           /St/
Am-238..........................         -         1.E-06                  -                -         4.E+04                  -           /BS/
Am-239..........................         -         5.E-06                  -                -         2.E+05                  -           /St/
Am-240..........................         -         1.E-06                  -                -         4.E+04                  -           /St/
Am-241..........................         -         2.E-12                  -                -         8.E-02                  -           /BS/
Am-242m.........................         -         2.E-12                  -                -         8.E-02                  -           /BS/
Am-242..........................         -         3.E-08                  -                -         1.E+03                  -           /BS/
Am-243..........................         -         2.E-12                  -                -         8.E-02                  -           /BS/
Am-244m.........................         -         2.E-06                  -                -         6.E+04                  -           /BS/
Am-244..........................         -         7.E-08                  -                -         3.E+03                  -           /BS/
Am-245..........................         -         3.E-05                  -                -         1.E+06                  -           /St/
Am-246m.........................         -         7.E-05                  -                -         3.E+06                  -           /St/
Am-246..........................         -         4.E-05                  -                -         2.E+06                  -           /St/
Cm-238..........................         -         4.E-07                  -                -         2.E+04                  -           /St/
Cm-240..........................         -         2.E-10                  -                -         8.E+00                  -           /BS/
Cm-241..........................         -         9.E-09                  -                -         4.E+02                  -           /BS/
Cm-242..........................         -         1.E-10                  -                -         4.E+00                  -           /BS/
Cm-243..........................         -         3.E-12                  -                -         1.E-01                  -           /BS/
Cm-244..........................         -         4.E-12                  -                -         2.E-01                  -           /BS/
Cm-245..........................         -         2.E-12                  -                -         8.E-02                  -           /BS/
Cm-246..........................         -         2.E-12                  -                -         8.E-02                  -           /BS/
Cm-247..........................         -         2.E-12                  -                -         9.E-02                  -           /BS/
Cm-248..........................         -         6.E-13                  -                -         2.E-02                  -           /BS/
Cm-249..........................         -         6.E-06                  -                -         2.E+05                  -           /BS/
Bk-245..........................         -         5.E-07                  -                -         2.E+04                  -           /St/
Bk-246..........................         -         1.E-06                  -                -         5.E+04                  -           /St/
Bk-247..........................         -         2.E-12                  -                -         8.E-02                  -           /BS/
Bk-249..........................         -         9.E-10                  -                -         3.E+01                  -           /BS/

[[Page 482]]


Bk-250..........................         -         2.E-07                  -                -         7.E+03                  -           /BS/
Cf-244..........................         -         2.E-07           2.E-07                  -         9.E+03           9.E+03             /St/St
Cf-246..........................         -         4.E-09           4.E-09                  -         2.E+02           1.E+02             /St/St
Cf-248..........................         -         4.E-11           5.E-11                  -         1.E+00           2.E+00             /BS/St
Cf-249..........................         -         2.E-12           6.E-12                  -         8.E-02           2.E-01             /BS/BS
Cf-250..........................         -         5.E-12           1.E-11                  -         2.E-01           4.E-01             /BS/St
Cf-251..........................         -         2.E-12           5.E-12                  -         8.E-02           2.E-01             /BS/BS
Cf-252..........................         -         1.E-11           2.E-11                  -         4.E-01           6.E-01             /BS/St
Cf-253..........................         -         8.E-10           7.E-10                  -         3.E+01           3.E+01             /St/St
Cf-254..........................         -         9.E-12           7.E-12                  -         3.E-01           3.E-01             /St/St
Es-250..........................         -         3.E-07                  -                -         1.E+04                  -           /BS/
Es-251..........................         -         4.E-07                  -                -         2.E+04                  -           /BS/
Es-253..........................         -         6.E-10                  -                -         2.E+01                  -           /St/
Es-254m.........................         -         4.E-09                  -                -         2.E+02                  -           /St/
Es-254..........................         -         4.E-11                  -                -         2.E+00                  -           /BS/
Fm-252..........................         -         6.E-09                  -                -         2.E+02                  -           /St/
Fm-253..........................         -         4.E-09                  -                -         2.E+02                  -           /St/
Fm-254..........................         -         4.E-08                  -                -         2.E+03                  -           /St/
Fm-255..........................         -         9.E-09                  -                -         3.E+02                  -           /St/
Fm-257..........................         -         1.E-10                  -                -         4.E+00                  -           /E /
Md-257..........................         -         4.E-08                  -                -         2.E+03                  -           /St/
Md-258..........................         -         1.E-10                  -                -         4.E+00                  -           /BS/
--------------------------------------------------------------------------------------------------------------------------------------------------------
Footnotes for Appendix A
\1\ A determination of whether the DACs are controlled by stochastic (St) or nonstochastic (organ) dose, or if they both give the same result (E), for
  each lung retention class, is given in this column. The key to the organ notation for nonstochastic dose is: BS= Bone surface, K= Kidney, L= Liver,
  SW= Stomach wall, and T= Thyroid. A blank indicates that no calculations were performed for the lung retention class shown.
\2\ The ICRP identifies tritiated water and carbon as having immediate uptake and distribution; therefore no solubility classes are designated. For the
  purposes of this table, the DAC values are shown as being constant, independent of solubility class. For tritiated water, the inhalation DAC values
  allow for an additional 50% absorption through the skin, as described in ICRP Publication No. 30: Limits for Intakes of Radionuclides by Workers. For
  elemental tritium, the DAC values are based solely on consideration of the dose-equivalent rate to the tissues of the lung from inhaled tritium gas
  contained within the lung, without absorption in the tissues.
\3\ A dash indicates no values given for this data category.
\4\ These values are appropriate for protection from radon combined with its short-lived daughters and are based on information given in ICRP
  Publication 32: Limits for Inhalation of Radon Daughters by Workers and Federal Guidance Report No. 11: Limiting Values of Radionuclide Intake and Air
  Concentrations, and Dose Conversion Factors for Inhalation, Submersion, and Ingestion (EPA 520/1-88-020). The values given are for 100% equilibrium
  concentration conditions of the radon daughters with the parent. To allow for an actual measured equilibrium concentration or a demonstrated
  equilibrium concentration, the values given in this table should be multiplied by the ratio (100%/actual %) or (100%/demonstrated %), respectively.
  Alternatively, the DAC values for Rn-220 and Rn-222 may be replaced by 1 WL* and 1/3 WL*, respectively, for appropriate limiting of daughter
  concentrations. Because of the dosimetric considerations for radon, no f1 or lung clearance values are listed.
*A ``Working Level'' (WL) is any combination of short-lived radon daughters, in one liter of air without regard to the degree of equilibrium, that will
  result in the ultimate emission of 1.3 E+05 MeV of alpha energy.

[58 FR 65485, Dec. 14, 1993, as amended at 63 FR 59687, Nov. 4, 1998]

                   Appendix B to Part 835  [Reserved]

  Appendix C to Part 835--Derived Air Concentrations (DAC) for Workers 
 From External Exposure During Immersion in a Contaminated Atmospheric 
                                  Cloud

    a. The data presented in appendix C are to be used for controlling 
occupational exposures in accordance with Sec. 835.209, identifying the 
need for air monitoring in accordance with Sec. 835.403, and identifying 
the need for posting of airborne radioactivity areas in accordance with 
Sec. 835.603(d).
    b. The air immersion DAC values shown in this appendix are based on 
a stochastic dose limit of 5 rems (0.05 Sv) per year or a nonstochastic 
(organ) dose limit of 50 rems (0.5 Sv) per year. Four columns of 
information are presented: (1) Radionuclide; (2) half-life in units of 
seconds (s), minutes (min), hours (h), days (d), or years (yr); (3) air 
immersion DAC in units of Ci/ml; and (4) air immersion DAC in 
units of Bq/m3. The data are listed by radionuclide in order 
of increasing atomic mass. The air immersion DACs were calculated for a 
continuous, nonshielded exposure via immersion in a semi-infinite 
atmospheric cloud. The DACs listed in this appendix may be modified to 
allow for submersion in a cloud of finite dimensions.
    c. The DAC value for air immersion listed for a given radionuclide 
is determined either by a yearly limit on effective dose equivalent, 
which provides a limit on stochastic radiation effects, or by a limit on 
yearly dose equivalent to any organ, which provides a limit on 
nonstochastic radiation effects. For most of the radionuclides listed, 
the DAC value is determined by the yearly limit on

[[Page 483]]

effective dose equivalent. Thus, the few cases where the DAC value is 
determined by the yearly limit on shallow dose equivalent to the skin 
are indicated in the table by an appropriate footnote. Again, the DACs 
listed in this appendix account only for immersion in a semi-infinite 
cloud and do not account for inhalation or ingestion exposures.
    d. Three classes of radionuclides are included in the air immersion 
DACs as described below.
    (1) Class 1. The first class of radionuclides includes selected 
noble gases and short-lived activation products that occur in gaseous 
form. For these radionuclides, inhalation doses are negligible compared 
to the external dose from immersion in an atmospheric cloud.
    (2) Class 2. The second class of radionuclides includes those for 
which a DAC value for inhalation has been calculated, but for which the 
DAC value for external exposure to a contaminated atmospheric cloud is 
more restrictive (i.e., results in a lower DAC value). These 
radionuclides generally have half-lives of a few hours or less, or are 
eliminated from the body following inhalation sufficiently rapidly to 
limit the inhalation dose.
    (3) Class 3. The third class of radionuclides includes selected 
isotopes with relatively short half-lives. These radionuclides typically 
have half-lives that are less than 10 minutes, they do not occur as a 
decay product of a longer lived radionuclide, or they lack sufficient 
decay data to permit internal dose calculations. These radionuclides are 
also typified by a radioactive emission of highly intense, high-energy 
photons and rapid removal from the body following inhalation.
    e. The DAC values are given for individual radionuclides. For known 
mixtures of radionuclides, determine the sum of the ratio of the 
observed concentration of a particular radionuclide and its 
corresponding DAC for all radionuclides in the mixture. If this sum 
exceeds unity (1), then the DAC has been exceeded. For unknown 
radionuclides, the most restrictive DAC (lowest value) for those 
isotopes not known to be absent shall be used.

------------------------------------------------------------------------
                                               Air Immersion DAC
  Radionuclide         Half-Life     -----------------------------------
                                      (Ci/ml)     (Bq/m \3\)
------------------------------------------------------------------------
C-11              20.48 min.........  4.E-06            1.E+05
N-13              9.97 min..........  4.E-06            1.E+05
N-16              7.13 s............  7.E-07            3.E+04
O-15              122.24 s..........  4.E-06            1.E+05
F-18 \1\          109.74 min........  4.E-06            1.E+05
Na-24 \1\         15.00 h...........  9.E-07            3.E+04
Mg-27 \2\         9.458 min.........  5.E-06            2.E+05
Al-28 \2\         2.240 min.........  2.E-06            7.E+04
Cl-38 \1\         37.21 min.........  3.E-06            1.E+05
Ar-37             35.02 d...........  3.E+00            1.E+11
Ar-39             269 yr............  2.E-04 \3\        7.E+06 \3\
Ar-41             1.827 h...........  3.E-06            1.E+05
K-43 \1\          22.6 h............  5.E-06            2.E+05
Ca-492            8.719 min.........  1.E-06            4.E+04
Sc-44 \1\         3.927 h...........  2.E-06            7.E+04
Sc-46m \2\        18.72 s...........  5.E-05            2.E+06
Ti-45 \1\         3.08 h............  5.E-06            2.E+05
Ti-51 \2\         5.752 min.........  1.E-05            4.E+05
V-52 \2\          3.75 min..........  3.E-06            1.E+05
Cr-49 \1\         42.09 min.........  5.E-06            2.E+05
Mn-52m \1\        21.4 min..........  2.E-06            7.E+04
Mn-56 \1\         2.5785 h..........  2.E-06            7.E+04
Mn-57 \2\         1.47 min..........  6.E-05            2.E+06
Co-60m \1\        10.47 min.........  1.E-03            4.E+07
Ni-57 1,4         36.08 h...........  2.E-06            7.E+04
Ni-65 1,5         2.520 h...........  8.E-06            3.E+05
Cu-61 \1\         3.408 h...........  5.E-06            2.E+05
Cu-62 \2\         9.74 min..........  5.E-06            2.E+05
Ga-66 \1\         9.40 h............  2.E-06            7.E+04
Ga-68 \1\         68.0 min..........  5.E-06            2.E+05
Ga-72 \1\         14.1 h............  1.E-06            4.E+04
Se-73 \1\         7.15 h............  4.E-06            1.E+05
Br-77 \1\         57.04 h...........  1.E-05 \6\        4.E+05 \6\
Br-80 \1\         17.4 min..........  5.E-05            2.E+06
Br-82 \1\         35.30 h...........  1.E-06            4.E+04
Br-84 \1\         31.80 min.........  2.E-06            7.E+04
Br-85 \2\         172 s.............  5.E-05            2.E+06
Kr-79             35.04 h...........  2.E-05            7.E+05
Kr-81             2.1E+05 yr........  5.E-04            2.E+07
Kr-83m            1.83 h............  5.E-02            2.E+09
Kr-85             10.72 yr..........  1.E-04 \3\        4.E+06 \3\
Kr-85m            4.48 h............  3.E-05            1.E+06

[[Page 484]]


Kr-87             76.3 min..........  5.E-06            2.E+05
Kr-88             2.84 h............  2.E-06            7.E+04
Kr-89             3.16 min..........  2.E-06            7.E+04
Kr-90             32.32 s...........  3.E-06            1.E+05
Rb-81 \1\         4.58 h............  8.E-06            3.E+05
Rb-82 \2\         1.25 min..........  2.E-06            7.E+04
Rb-88 \1\         17.8 min..........  7.E-06            3.E+05
Rb-89 \1\         15.44 min.........  2.E-06            7.E+04
Rb-90 \2\         157 s.............  2.E-06            7.E+04
Rb-90m \2\        258 s.............  1.E-06            4.E+04
Sr-85m \1\        67.66 min.........  2.E-05            7.E+04
Sr-87m \1\        2.805 h...........  6.E-05            2.E+06
Sr-92 \1\         2.71 h............  3.E-06            1.E+05
Sr-93 \2\         7.3 min...........  2.E-06            7.E+04
Y-86 \1\          14.74 h...........  1.E-06            4.E+04
Y-90m \1\         3.19 h............  5.E-06 \6\        2.E+05 \6\
Y-91m \1\         49.71 min.........  9.E-06            3.E+05
Nb-90 \1\         14.60 h...........  1.E-07            4.E+03
Nb-94m \2\        6.26 min..........  9.E-04            3.E+07
Nb-97 \1\         72.1 min..........  7.E-06            3.E+05
Nb-97m \1\        60 s..............  6.E-06            2.E+05
Mo-91 \2\         15.9 min..........  4.E-06            1.E+05
Mo-101 \1\        14.61 min.........  3.E-06            1.E+05
Tc-95 \1\         20.0 h............  5.E-06            2.E+05
Tc-96m \1\        51.5 min..........  1.E-04            4.E+06
Tc-99m \1\        6.02 h............  3.E-05            1.E+06
Tc-101 \1\        14.2 min..........  1.E-05            4.E+05
Ru-105 \1\        4.44 h............  5.E-06            2.E+05
Rh-105m \2\       45 s..............  1.E-04            4.E+06
Rh-106 \2\        29.92 s...........  2.E-05            7.E+05
Ag-108 \2\        2.37 min..........  2.E-04            7.E+06
Ag-109m \2\       39.6 s............  1.E-03            4.E+07
Ag-110 \2\        24.57 s...........  9.E-05            3.E+06
Cd-111m \2\       48.7 min..........  1.E-05            4.E+05
Cd-117 \1\        2.49 h............  4.E-06            1.E+05
Cd-117m \1\       3.36 h............  2.E-06            7.E+04
In-113m \1\       1.658 h...........  2.E-05            7.E+05
In-114 \2\        71.9 s............  1.E-04            4.E+06
In-116m \1\       54.15 min.........  2.E-06            7.E+04
In-117 \1\        43.8 min..........  7.E-06            3.E+05
Sb-117 \1\        2.80 h............  3.E-05            1.E+06
Sb-126m \1\       19.0 min..........  3.E-06            1.E+05
Sb-129 \1\        4.40 h............  3.E-06            1.E+05
Te-133 \1\        12.45 min.........  5.E-06            2.E+05
Te-133m \1\       55.4 min..........  2.E-06            7.E+04
Te-134 \1\        41.8 min..........  5.E-06            2.E+05
I-122 \2\         3.62 min..........  5.E-06            2.E+05
I-128 \1\         24.99 min.........  5.E-05            2.E+06
I-132 \1\         2.30 h............  2.E-06            7.E+04
I-134 \1\         52.6 min..........  1.E-06            4.E+04
I-135 \1\         6.61 h............  7.E-07 \6\        3.E+04 \6\
I-136 \2\         83 s..............  1.E-06            4.E+04
Xe-122            20.1 h............  8.E-05            3.E+06
Xe-123            2.14 h............  7.E-06            3.E+05
Xe-125            16.8 h............  2.E-05            7.E+05
Xe-127            36.406 d..........  1.E-05            4.E+05
Xe-129m           8.89 d............  2.E-04            7.E+06
Xe-131m           11.84 d...........  5.E-04            2.E+07
Xe-133            5.245 d...........  1.E-04            4.E+06
Xe-133m           2.19 d............  1.E-04            4.E+06
Xe-135            9.11 h............  2.E-05            7.E+05
Xe-135m           15.36 min.........  1.E-05            4.E+05
Xe-137            3.83 min..........  2.E-05            7.E+05
Xe-138            14.13 min.........  4.E-06            1.E+05
Cs-126 \2\        1.64 min..........  4.E-06            1.E+05
Cs-129 \1\        32.06 h...........  1.E-05 \6\        4.E+05 \6\
Cs-138 \1\        32.2 min..........  2.E-06            7.E+04
Cs-139 \2\        9.40 min..........  1.E-05            4.E+05
Ba-137m \2\       2.552 min.........  7.E-06            3.E+05
Ba-141 \1\        18.27 min.........  5.E-06            2.E+05
Ba-142 \1\        10.70 min.........  5.E-06            2.E+05
La-142 \1\        95.4 min..........  1.E-06            4.E+04

[[Page 485]]


Pr-144m \2\       7.2 min...........  9.E-04            3.E+07
Nd-149 \1\        1.73 h............  1.E-05            4.E+05
Gd-162 \2\        9.7 min...........  1.E-05            4.E+05
Td-162 \2\        7.76 min..........  4.E-06            1.E+05
Dy-157 \1\        8.06 h............  1.E-05            4.E+05
Re-182m \1\       12.7 h............  4.E-06            1.E+05
Os-190m \2\       9.9 min...........  3.E-06            1.E+05
Ir-190m \1\       3.2 h.............  8.E-05 \6\        3.E+06 \6\
Au-195m \2\       30.6 s............  2.E-05            7.E+05
Tl-200 \1\        26.1 h............  3.E-06            1.E+05
Tl-207 \2\        4.77 min..........  4.E-05 \3\        1.E+06 \3\
Tl-208 \2\        3.053 min.........  1.E-06            4.E+04
Tl-209 \2\        2.20 min..........  2.E-06            7.E+04
Tl-210 \2\        1.30 min..........  1.E-06            4.E+04
Pb-204m \2\       66.9 min..........  2.E-06            7.E+04
Bi-211 \2\        2.13 min..........  1.E-04            4.E+06
Po-211 \2\        0.516 s...........  5.E-04            2.E+07
Th-233 \2\        22.3 min..........  1.E-04            4.E+06
Pa-234 \1\        6.70 h............  2.E-06            7.E+04
Pa-234m \2\       1.17 min..........  4.E-05 \3\        1.E+06 \3\
U-239 \1\         23.40 min.........  8.E-05 \6\        3.E+06 \6\
Np-240 \1\        65 min............  4.E-06            1.E+05
Np-240m \2\       7.4 min...........  1.E-05            4.E+05
Am-246 \1\        25.0 min..........  4.E-06            1.E+05
------------------------------------------------------------------------
\1\ Committed effective dose equivalent from inhalation is calculated in
  ICRP Publication 30, but the DAC value for external exposure to a
  contaminated atmospheric cloud is more restrictive than the DAC value
  for inhalation.
\2\ Committed effective dose equivalent from inhalation is not
  calculated in ICRP Publication 30, but DAC value for external exposure
  to contaminated cloud should be more restrictive than DAC value for
  inhalation due to relatively short half-life of radionuclide.
\3\ DAC value is determined by limit on annual shallow dose equivalent
  to skin, rather than yearly limit on effective dose equivalent.
\4\ DAC value applies to radionuclide in vapor form only; DAC value for
  inhalation is more restrictive for radionuclide in inorganic form.
\5\ DAC value applies to radionuclide in inorganic or vapor form.
\6\ DAC value for exposure to contaminated atmospheric cloud is the same
  as DAC value for inhalation.

[58 FR 65485, Dec. 14, 1993, as amended at 63 FR 59687, Nov. 4, 1998]

          Appendix D to Part 835--Surface Contamination Values

    The data presented in appendix D are to be used in identifying the 
need for posting of contamination and high contamination areas in 
accordance with Sec. 835.603(e) and (f) and identifying the need for 
surface contamination monitoring and control in accordance with 
Secs. 835.1101 and 835.1102.

           Surface Contamination Values \1\ in dpm/100 cm \2\
------------------------------------------------------------------------
                                                          Total (Fixed +
              Radionuclide                Removable \2\  Removable) \2\,
                                               \4\             \3\
------------------------------------------------------------------------
U-nat, U-235, U-238, and associated           \7\ 1,000        \7\ 5,000
 decay products........................
Transuranics, Ra-226, Ra-228, Th-230,                20              500
 Th-228, Pa-231, Ac-227, I-125, I-129..
Th-nat, Th-232, Sr-90, Ra-223, Ra-224,              200            1,000
 U-232, I-126, I-131, I-133............
Beta-gamma emitters (nuclides with                1,000            5,000
 decay modes other than alpha emission
 or spontaneous fission) except Sr-90
 and others noted above \5\............
Tritium and tritiated compounds \6\....          10,000              N/A
------------------------------------------------------------------------
\1\ The values in this appendix, with the exception noted in footnote 5,
  apply to radioactive contamination deposited on, but not incorporated
  into the interior or matrix of, the contaminated item. Where surface
  contamination by both alpha-and beta-gamma-emitting nuclides exists,
  the limits established for alpha-and beta-gamma-emitting nuclides
  apply independently.
\2\ As used in this table, dpm (disintegrations per minute) means the
  rate of emission by radioactive material as determined by correcting
  the counts per minute observed by an appropriate detector for
  background, efficiency, and geometric factors associated with the
  instrumentation.
\3\ The levels may be averaged over one square meter provided the
  maximum surface activity in any area of 100 cm \2\ is less than three
  times the value specified. For purposes of averaging, any square meter
  of surface shall be considered to be above the surface contamination
  value if: (1) From measurements of a representative number of sections
  it is determined that the average contamination level exceeds the
  applicable value; or (2) it is determined that the sum of the activity
  of all isolated spots or particles in any 100 cm \2\ area exceeds
  three times the applicable value.

[[Page 486]]


\4\ The amount of removable radioactive material per 100 cm \2\ of
  surface area should be determined by swiping the area with dry filter
  or soft absorbent paper, applying moderate pressure, and then
  assessing the amount of radioactive material on the swipe with an
  appropriate instrument of known efficiency. (Note--The use of dry
  material may not be appropriate for tritium.) When removable
  contamination on objects of surface area less than 100 cm \2\ is
  determined, the activity per unit area shall be based on the actual
  area and the entire surface shall be wiped. It is not necessary to use
  swiping techniques to measure removable contamination levels if direct
  scan surveys indicate that the total residual surface contamination
  levels are within the limits for removable contamination.
\5\ This category of radionuclides includes mixed fission products,
  including the Sr-90 which is present in them. It does not apply to Sr-
  90 which has been separated from the other fission products or
  mixtures where the Sr-90 has been enriched.
\6\ Tritium contamination may diffuse into the volume or matrix of
  materials. Evaluation of surface contamination shall consider the
  extent to which such contamination may migrate to the surface in order
  to ensure the surface contamination value provided in this appendix is
  not exceeded. Once this contamination migrates to the surface, it may
  be removable, not fixed; therefore, a ``Total'' value does not apply.
\7\ (alpha)

[58 FR 65485, Dec. 14, 1993, as amended at 63 FR 59688, Nov. 4, 1998]

   Appendix E to Part 835--Values for Establishing Sealed Radioactive 
  Source Accountability and Radioactive Material Posting and Labeling 
                              Requirements

    The data presented in this appendix E are to be used for identifying 
accountable sealed radioactive sources as defined at Sec. 835.2(a), 
establishing the need for radioactive material area posting in 
accordance with Sec. 835.603(g), and establishing the need for 
radioactive material labeling in accordance with Sec. 835.605.

    Note: The data are listed in alphabetical order by nuclide.


----------------------------------------------------------------------------------------------------------------
                                   Activity                          Activity                         Activity
            Nuclide             (Ci)       Nuclide       (Ci)       Nuclide      (Ci)
----------------------------------------------------------------------------------------------------------------
Ac-227........................      1.5E+00    H-3..............      1.6E+08    Re-184m.........       1.5E+02
Ag-105........................      2.1E+06    Hf-172...........      3.1E+04    Re-186m.........       2.8E+05
Ag-108m.......................      1.8E+01    Hf-175...........      1.8E+06    Rh-101..........       2.5E+05
Ag-110m.......................      2.2E+01    Hf-178m..........      4.1E+03    Rh-102..........       8.3E+04
Al-26.........................      1.6E+01    Hf-181...........      3.5E+02    Rh-102m.........       2.1E+05
Am-241........................      2.3E+01    Hf-182...........      3.0E+03    Ru-103..........       4.4E+02
Am-242m.......................      2.4E+01    Hg-194...........      3.5E+04    Ru-106..........       2.1E+04
Am-243........................      2.3E+01    Hg-203...........      4.9E+02    S-35............       4.0E+06
As-73.........................      5.4E+02    Ho-166m..........      2.2E+01    Sb-124..........       9.1E+01
Au-195........................      4.8E+02    I-125............      3.5E+02    Sb-125..........       6.8E+01
Ba-133........................      5.2E+01    I-129............      1.8E+02    Sc-46...........       6.2E+01
Be-10.........................      2.8E+04    In-114m..........      7.8E+02    Se-75...........       6.4E+01
Be-7..........................      3.2E+03    Ir-192...........      1.4E+02    Se-79...........       1.0E+06
Bi-207........................      1.7E+01    Ir-192m..........      2.6E+04    Si-32...........       9.9E+03
Bi-208........................      1.5E+01    Ir-194m..........      2.7E+01    Sm-145..........       9.1E+05
Bi-210m.......................      1.3E+03    K-40.............      2.8E+02    Sm-146..........       1.2E+02
Bk-247........................      1.7E+01    La-137...........      1.1E+05    Sm-151..........       2.5E+05
Bk-249........................      7.2E+03    Lu-173...........      4.4E+05    Sn-113..........       3.1E+02
C-14..........................      4.8E+06    Lu-174...........      2.5E+05    Sn-119m.........       3.3E+02
Ca-41.........................      7.4E+06    Lu-174m..........      3.9E+05    Sn-121m.........       8.7E+05
Ca-45.........................      1.5E+06    Lu-177m..........      5.8E+01    Sn-123..........       1.3E+04
Cd-109........................      1.6E+02    Md-258...........      6.0E+02    Sn-126..........       1.8E+02
Cd-113m.......................      6.5E+03    Mn-53............      2.0E+07    Sr-85...........       1.2E+02
Cd-115m.......................      1.0E+04    Mn-54............      6.5E+01    Sr-89...........       2.4E+05
Ce-139........................      2.4E+02    Mo-93............      7.7E+01    Sr-90...........       7.7E+03
Ce-141........................      2.4E+03    Na-22............      1.9E+01    Ta-179..........       1.5E+06
Ce-144........................      1.5E+03    Nb-91............      7.0E+01    Ta-182..........       7.3E+01
Cf-248........................      2.0E+02    Nb-91m...........      3.6E+02    Tb-157..........       2.5E+03
Cf-249........................      1.7E+01    Nb-92............      1.8E+01    Tb-158..........       3.9E+04
Cf-250........................      3.8E+01    Nb-93m...........      4.4E+02    Tb-160..........       1.2E+02
Cf-251........................      1.7E+01    Nb-94............      2.3E+01    Tc-95m..........       1.3E+02
Cf-252........................      6.4E+01    Nb-95............      3.4E+02    Tc-97...........       8.1E+01
Cf-254........................      3.4E+01    Ni-59............      7.5E+06    Tc-97m..........       3.6E+02
Cl-36.........................      4.6E+05    Ni-63............      3.2E+06    Tc-98...........       2.5E+01
Cm-241........................      6.8E+04    Np-235...........      1.2E+02    Tc-99...........       6.8E+06
Cm-242........................      5.8E+02    Np-236...........      2.2E+01    Te-121m.........       1.9E+02
Cm-243........................      3.3E+01    Np-237...........      1.9E+01    Te-123m.........       2.8E+02
Cm-244........................      4.0E+01    Os-185...........      1.4E+02    Te-125m.........       4.4E+02
Cm-245........................      2.2E+01    Os-194...........      1.5E+04    Te-127m.........       8.0E+02
Cm-246........................      2.2E+01    Pa-231...........      7.8E+00    Te-129m.........       2.3E+03
Cm-247........................      2.4E+01    Pb-202...........      1.0E+05    Th-228..........       2.9E+01
Cm-248........................      6.0E+00    Pb-205...........      9.1E+01    Th-229..........       4.7E+00
Cm-250........................      1.1E+00    Pb-210...........      9.2E+01    Th-230..........       3.1E+01
Co-56.........................      4.0E+01    Pd-107...........      7.8E+05    Th-232..........       6.1E+00
Co-57.........................      2.3E+02    Pm-143...........      1.3E+02    Ti-44...........       1.6E+02
Co-58.........................      1.4E+02    Pm-144...........      2.9E+01    Tl-204..........       2.2E+04
Co-60.........................      1.8E+01    Pm-145...........      2.6E+02    Tm-170..........       8.4E+03

[[Page 487]]


Cs-134........................      2.7E+01    Pm-146...........      4.5E+01    Tm-171..........       2.8E+04
Cs-135........................      2.2E+06    Pm-147...........      2.5E+05    U-232...........       1.5E+01
Cs-137........................      6.0E+01    Pm-148m..........      1.1E+02    U-233...........       7.4E+01
Dy-159........................      4.1E+06    Po-209...........      6.3E+03    U-234...........       7.5E+01
Es-254........................      6.3E+01    Po-210...........      1.1E+03    U-235...........       6.7E+01
Es-255........................      4.6E+04    Pt-193...........      4.4E+07    U-236...........       8.0E+01
Eu-148........................      7.0E+05    Pu-236...........      6.9E+01    U-238...........       8.4E+01
Eu-149........................      5.3E+06    Pu-237...........      3.3E+02    V-49............       2.9E+07
Eu-152........................      3.1E+01    Pu-238...........      2.5E+01    W-181...........       1.1E+03
Eu-154........................      3.1E+01    Pu-239...........      2.3E+01    W-185...........       3.9E+06
Eu-155........................      3.7E+02    Pu-240...........      2.3E+01    W-188...........       6.4E+04
Fe-55.........................      3.7E+06    Pu-241...........      1.2E+03    Y-88............       3.4E+01
Fe-59.........................      2.0E+02    Pu-242...........      2.4E+01    Y-91............       5.0E+04
Fe-60.........................      1.3E+04    Pu-244...........      2.5E+01    Yb-169..........       5.5E+02
Fm-257........................      4.3E+02    Ra-226...........      1.2E+03    Zn-65...........       1.1E+02
Gd-146........................      2.6E+05    Ra-228...........      2.1E+03    Zr-88...........       1.2E+02
Gd-148........................      3.0E+01    Rb-83............      9.2E+01    Zr-93...........       3.1E+04
Gd-151........................      1.1E+06    Rb-84............      2.0E+02    Zr-95...........       2.0E+02
Gd-153........................      2.1E+02    Re-183...........      5.4E+02
Ge-68.........................      5.7E+02    Re-184...........      2.6E+02
----------------------------------------------------------------------------------------------------------------

    Any alpha emitting radionuclide not listed above and mixtures of 
alpha emitters of unknown composition have a value of 10 microcuries.
    Any radionuclide other than alpha emitting radionuclides not listed 
above and mixtures of beta emitters of unknown composition have a value 
of 100 microcuries.

    Note: Where there is involved a combination of radionuclides in 
known amounts, derive the value for the combination as follows: 
determine, for each radionuclide in the combination, the ratio between 
the quantity present in the combination and the value otherwise 
established for the specific radionuclide when not in combination. If 
the sum of such ratios for all radionuclides in the combination exceeds 
unity (1), then the accountability criterion has been exceeded.


[63 FR 59688, Nov. 4, 1998]