49 C.F.R. § 173.435 Table of A1 and A2 values for radionuclides.
Title 49 - Transportation
The table of A1 and A2 values for radionuclides is as follows: [69 FR 3678, Jan. 26, 2004; 69 FR 55119, Sept. 13, 2004]
Title 49: Transportation
PART 173—SHIPPERS—GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS
Subpart I—Class 7 (Radioactive) Materials
§ 173.435 Table of A1 and A2 values for radionuclides.
---------------------------------------------------------------------------------------------------------------- Specific activity Symbol of radionuclide Element and A1 (TBq) A1 (Ci) A2 (TBq) A2 (Ci) ------------------------- atomic number \b\ \b\ (TBq/g) (Ci/g)----------------------------------------------------------------------------------------------------------------Ac-225 (a)................... Actinium (89).. 8.0x10-1 2.2x10\1 6.0x10-3 1.6x10-1 2.1x10\3\ 5.8x10\4\ \Ac-227 (a)................... ............... 9.0x10-1 2.4x10\1 9.0x10-5 2.4x10-3 2.7 7.2x10\1\ \Ac-228....................... ............... 6.0x10-1 1.6x10\1 5.0x10-1 1.4x10\1 8.4x10\4\ 2.2x10\6\ \ \Ag-105....................... Silver (47).... 2.0 5.4x10\1 2.0 5.4x10\1 1.1x10\3\ 3.0x10\4\ \ \Ag-108m (a).................. ............... 7.0x10-1 1.9x10\1 7.0x10-1 1.9x10\1 9.7x10-1 2.6x10\1\ \ \Ag-110m (a).................. ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 1.8x10\2\ 4.7x10\3\ \ \Ag-111....................... ............... 2.0 5.4x10\1 6.0x10-1 1.6x10\1 5.8x10\3\ 1.6x10\5\ \ \Al-26........................ Aluminum (13).. 1.0x10-1 2.7 1.0x10-1 2.7 7.0x10-4 1.9x10-2Am-241....................... Americium (95). 1.0x10\1 2.7x10\2 1.0x10-3 2.7x10-2 1.3x10-1 3.4 \ \Am-242m (a).................. ............... 1.0x10\1 2.7x10\2 1.0x10-3 2.7x10-2 3.6x10-1 1.0x10\1\ \ \Am-243 (a)................... ............... 5.0 1.4x10\2 1.0x10-3 2.7x10-2 7.4x10-3 2.0x10-1 \Ar-37........................ Argon (18)..... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 3.7x10\3\ 9.9x10\4\ \ \ \ \Ar-39........................ ............... 4.0x10\1 1.1x10\3 2.0x10\1 5.4x10\2 1.3 3.4x10\1\ \ \ \ \Ar-41........................ ............... 3.0x10-1 8.1 3.0x10-1 8.1 1.5x10\6\ 4.2x10\7\As-72........................ Arsenic (33)... 3.0x10-1 8.1 3.0x10-1 8.1 6.2x10\4\ 1.7x10\6\As-73........................ ............... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 8.2x10\2\ 2.2x10\4\ \ \ \ \As-74........................ ............... 1.0 2.7x10\1 9.0x10-1 2.4x10\1 3.7x10\3\ 9.9x10\4\ \ \As-76........................ ............... 3.0x10-1 8.1 3.0x10-1 8.1 5.8x10\4\ 1.6x10\6\As-77........................ ............... 2.0x10\1 5.4x10\2 7.0x10-1 1.9x10\1 3.9x10\4\ 1.0x10\6\ \ \ \At-211 (a)................... Astatine (85).. 2.0x10\1 5.4x10\2 5.0x10-1 1.4x10\1 7.6x10\4\ 2.1x10\6\ \ \ \Au-193....................... Gold (79)...... 7.0 1.9x10\2 2.0 5.4x10\1 3.4x10\4\ 9.2x10\5\ \ \Au-194....................... ............... 1.0 2.7x10\1 1.0 2.7x10\1 1.5x10\4\ 4.1x10\5\ \ \Au-195....................... ............... 1.0x10\1 2.7x10\2 6.0 1.6x10\2 1.4x10\2\ 3.7x10\3\ \ \ \Au-198....................... ............... 1.0 2.7x10\1 6.0x10-1 1.6x10\1 9.0x10\3\ 2.4x10\5\ \ \Au-199....................... ............... 1.0x10\1 2.7x10\2 6.0x10-1 1.6x10\1 7.7x10\3\ 2.1x10\5\ \ \ \Ba-131 (a)................... Barium (56).... 2.0 5.4x10\1 2.0 5.4x10\1 3.1x10\3\ 8.4x10\4\ \ \Ba-133....................... ............... 3.0 8.1x10\1 3.0 8.1x10\1 9.4 2.6x10\2\ \ \Ba-133m...................... ............... 2.0x10\1 5.4x10\2 6.0x10-1 1.6x10\1 2.2x10\4\ 6.1x10\5\ \ \ \Ba-140 (a)................... ............... 5.0x10-1 1.4x10\1 3.0x10-1 8.1 2.7x10\3\ 7.3x10\4\ \Be-7......................... Beryllium (4).. 2.0x10\1 5.4x10\2 2.0x10\1 5.4x10\2 1.3x10\4\ 3.5x10\5\ \ \ \ \Be-10........................ ............... 4.0x10\1 1.1x10\3 6.0x10-1 1.6x10\1 8.3x10-4 2.2x10-2 \ \ \Bi-205....................... Bismuth (83)... 7.0x10-1 1.9x10\1 7.0x10-1 1.9x10\1 1.5x10\3\ 4.2x10\4\ \ \Bi-206....................... ............... 3.0x10-1 8.1 3.0x10-1 8.1 3.8x10\3\ 1.0x10\5\Bi-207....................... ............... 7.0x10-1 1.9x10\1 7.0x10-1 1.9x10\1 1.9 5.2x10\1\ \ \Bi-210....................... ............... 1.0 2.7x10\1 6.0x10-1 1.6x10\1 4.6x10\3\ 1.2x10\5\ \ \Bi-210m (a).................. ............... 6.0x10-1 1.6x10\1 2.0x10-2 5.4x10-1 2.1x10-5 5.7x10-4 \Bi-212 (a)................... ............... 7.0x10-1 1.9x10\1 6.0x10-1 1.6x10\1 5.4x10\5\ 1.5x10\7\ \ \Bk-247....................... Berkelium (97). 8.0 2.2x10\2 8.0x10-4 2.2x10-2 3.8x10-2 1.0 \Bk-249 (a)................... ............... 4.0x10\1 1.1x10\3 3.0x10-1 8.1 6.1x10\1\ 1.6x10\3\ \ \Br-76........................ Bromine (35)... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 9.4x10\4\ 2.5x10\6\ \ \Br-77........................ ............... 3.0 8.1x10\1 3.0 8.1x10\1 2.6x10\4\ 7.1x10\5\ \ \Br-82........................ ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 4.0x10\4\ 1.1x10\6\ \ \C-11......................... Carbon (6)..... 1.0 2.7x10\1 6.0x10-1 1.6x10\1 3.1x10\7\ 8.4x10\8\ \ \C-14......................... ............... 4.0x10\1 1.1x10\3 3.0 8.1x10\1 1.6x10-1 4.5 \ \ \Ca-41........................ Calcium (20)... Unlimite Unlimite Unlimite Unlimite 3.1x10-3 8.5x10-2 d d d dCa-45........................ ............... 4.0x10\1 1.1x10\3 1.0 2.7x10\1 6.6x10\2\ 1.8x10\4\ \ \ \Ca-47 (a).................... ............... 3.0 8.1x10\1 3.0x10-1 8.1 2.3x10\4\ 6.1x10\5\ \Cd-109....................... Cadmium (48)... 3.0x10\1 8.1x10\2 2.0 5.4x10\1 9.6x10\1\ 2.6x10\3\ \ \ \Cd-113m...................... ............... 4.0x10\1 1.1x10\3 5.0x10-1 1.4x10\1 8.3 2.2x10\2\ \ \ \Cd-115 (a)................... ............... 3.0 8.1x10\1 4.0x10-1 1.1x10\1 1.9x10\4\ 5.1x10\5\ \ \Cd-115m...................... ............... 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 9.4x10\2\ 2.5x10\4\ \ \Ce-139....................... Cerium (58).... 7.0 1.9x10\2 2.0 5.4x10\1 2.5x10\2\ 6.8x10\3\ \ \Ce-141....................... ............... 2.0x10\1 5.4x10\2 6.0x10-1 1.6x10\1 1.1x10\3\ 2.8x10\4\ \ \ \Ce-143....................... ............... 9.0x10-1 2.4x10\1 6.0x10-1 1.6x10\1 2.5x10\4\ 6.6x10\5\ \ \Ce-144 (a)................... ............... 2.0x10-1 5.4 2.0x10-1 5.4 1.2x10\2\ 3.2x10\3\Cf-248....................... Californium 4.0x10\1 1.1x10\3 6.0x10-3 1.6x10-1 5.8x10\1\ 1.6x10\3\ (98). \ \Cf-249....................... ............... 3.0 8.1x10\1 8.0x10-4 2.2x10-2 1.5x10-1 4.1 \Cf-250....................... ............... 2.0x10\1 5.4x10\2 2.0x10-3 5.4x10-2 4.0 1.1x10\2\ \ \Cf-251....................... ............... 7.0 1.9x10\2 7.0x10-4 1.9x10-2 5.9x10-2 1.6 \Cf-252 (h)................... ............... 5.0x10-2 1.4 3.0x10-3 8.1x10-2 2.0x10\1\ 5.4x10\2\Cf-253 (a)................... ............... 4.0x10\1 1.1x10\3 4.0x10-2 1.1 1.1x10\3\ 2.9x10\4\ \ \Cf-254....................... ............... 1.0x10-3 2.7x10-2 1.0x10-3 2.7x10-2 3.1x10\2\ 8.5x10\3\Cl-36........................ Chlorine (17).. 1.0x10\1 2.7x10\2 6.0x10-1 1.6x10\1 1.2x10-3 3.3x10-2 \ \ \Cl-38........................ ............... 2.0x10-1 5.4 2.0x10-1 5.4 4.9x10\6\ 1.3x10\8\Cm-240....................... Curium (96).... 4.0x10\1 1.1x10\3 2.0x10-2 5.4x10-1 7.5x10\2\ 2.0x10\4\ \ \Cm-241....................... ............... 2.0 5.4x10\1 1.0 2.7x10\1 6.1x10\2\ 1.7x10\4\ \ \Cm-242....................... ............... 4.0x10\1 1.1x10\3 1.0x10-2 2.7x10-1 1.2x10\2\ 3.3x10\3\ \ \Cm-243....................... ............... 9.0 2.4x10\2 1.0x10-3 2.7x10-2 1.9x10-3 5.2x10\1\ \Cm-244....................... ............... 2.0x10\1 5.4x10\2 2.0x10-3 5.4x10-2 3.0 8.1x10\1\ \ \Cm-245....................... ............... 9.0 2.4x10\2 9.0x10-4 2.4x10-2 6.4x10-3 1.7x10-1 \Cm-246....................... ............... 9.0 2.4x10\2 9.0x10-4 2.4x10-2 1.1x10-2 3.1x10-1 \Cm-247 (a)................... ............... 3.0 8.1x10\1 1.0x10-3 2.7x10-2 3.4x10-6 9.3x10-5 \Cm-248....................... ............... 2.0x10-2 5.4x10-1 3.0x10-4 8.1x10-3 1.6x10-4 4.2x10-3Co-55........................ Cobalt (27).... 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 1.1x10\5\ 3.1x10\6\ \ \Co-56........................ ............... 3.0x10-1 8.1 3.0x10-1 8.1 1.1x10\3\ 3.0x10\4\Co-57........................ ............... 1.0x10\1 2.7x10\2 1.0x10\1 2.7x10\2 3.1x10\2\ 8.4x10\3\ \ \ \ \Co-58........................ ............... 1.0 2.7x10\1 1.0 2.7x10\1 1.2x10\3\ 3.2x10\4\ \ \Co-58m....................... ............... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 2.2x10\5\ 5.9x10\6\ \ \ \ \Co-60........................ ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 4.2x10\1\ 1.1x10\3\ \ \Cr-51........................ Chromium (24).. 3.0x10\1 8.1x10\2 3.0x10\1 8.1x10\2 3.4x10\3\ 9.2x10\4\ \ \ \ \Cs-129....................... Cesium (55).... 4.0 1.1x10\2 4.0 1.1x10\2 2.8x10\4\ 7.6x10\5\ \ \Cs-131....................... ............... 3.0x10\1 8.1x10\2 3.0x10\1 8.1x10\2 3.8x10\3\ 1.0x10\5\ \ \ \ \Cs-132....................... ............... 1.0 2.7x10\1 1.0 2.7x10\1 5.7x10\3\ 1.5x10\5\ \ \Cs-134....................... ............... 7.0x10-1 1.9x10\1 7.0x10-1 1.9x10\1 4.8x10\1\ 1.3x10\3\ \ \Cs-134m...................... ............... 4.0x10\1 1.1x10\3 6.0x10-1 1.6x10\1 3.0x10\5\ 8.0x10\6\ \ \ \Cs-135....................... ............... 4.0x10\1 1.1x10\3 1.0 2.7x10\1 4.3x10-5 1.2x10-3 \ \ \Cs-136....................... ............... 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 2.7x10\3\ 7.3x10\4\ \ \Cs-137 (a)................... ............... 2.0 5.4x10\1 6.0x10-1 1.6x10\1 3.2 8.7x10\1\ \ \Cu-64........................ Copper (29).... 6.0 1.6x10\2 1.0 2.7x10\1 1.4x10\5\ 3.9x10\6\ \ \Cu-67........................ ............... 1.0x10\1 2.7x10\2 7.0x10-1 1.9x10\1 2.8x10\4\ 7.6x10\5\ \ \ \Dy-159....................... Dysprosium (66) 2.0x10\1 5.4x10\2 2.0x10\1 5.4x10\2 2.1x10\2\ 5.7x10\3\ \ \ \ \Dy-165....................... ............... 9.0x10-1 2.4x10\1 6.0x10-1 1.6x10\1 3.0x10\5\ 8.2x10\6\ \ \Dy-166 (a)................... ............... 9.0x10-1 2.4x10\1 3.0x10-1 8.1 8.6x10\3\ 2.3x10\5\ \Er-169....................... Erbium (68).... 4.0x10\1 1.1x10\3 1.0 2.7x10\1 3.1x10\3\ 8.3x10\4\ \ \ \Er-171....................... ............... 8.0x10-1 2.2x10\1 5.0x10-1 1.4x10\1 9.0x10\4\ 2.4x10\6\ \ \Eu-147....................... Europium (63).. 2.0 5.4x10\1 2.0 5.4x10\1 1.4x10\3\ 3.7x10\4\ \ \Eu-148....................... ............... 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 6.0x10\2\ 1.6x10\4\ \ \Eu-149....................... ............... 2.0x10\1 5.4x10\2 2.0x10\1 5.4x10\2 3.5x10\2\ 9.4x10\3\ \ \ \ \Eu-150 (short lived)......... ............... 2.0 5.4x10\1 7.0x10-1 1.9x10\1 6.1x10\4\ 1.6x10\6\ \ \Eu-150 (long lived).......... ............... 7.0x10-1 1.9x10\1 7.0x10-1 1.9x10\1 6.1x10\4\ 1.6x10\6\ \ \Eu-152....................... ............... 1.0 2.7x10\1 1.0 2.7x10\1 6.5 1.8x10\2\ \ \Eu-152m...................... ............... 8.0x10-1 2.2x10\1 8.0x10-1 2.2x10\1 8.2x10\4\ 2.2x10\6\ \ \Eu-154....................... ............... 9.0x10-1 2.4x10\1 6.0x10-1 1.6x10\1 9.8 2.6x10\2\ \ \Eu-155....................... ............... 2.0x10\1 5.4x10\2 3.0 8.1x10\1 1.8x10\1\ 4.9x10\2\ \ \ \Eu-156....................... ............... 7.0x10-1 1.9x10\1 7.0x10-1 1.9x10\1 2.0x10\3\ 5.5x10\4\ \ \F-18......................... Fluorine (9)... 1.0 2.7x10\1 6.0x10-1 1.6x10\1 3.5x10\6\ 9.5x10\7\ \ \Fe-52 (a).................... Iron (26)...... 3.0x10-1 8.1 3.0x10-1 8.1 2.7x10\5\ 7.3x10\6\Fe-55........................ ............... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 8.8x10\1\ 2.4x10\3\ \ \ \ \Fe-59........................ ............... 9.0x10-1 2.4x10\1 9.0x10-1 2.4x10\1 1.8x10\3\ 5.0x10\4\ \ \Fe-60 (a).................... ............... 4.0x10\1 1.1x10\3 2.0x10-1 5.4 7.4x10-4 2.0x10-2 \ \Ga-67........................ Gallium (31)... 7.0 1.9x10\2 3.0 8.1x10\1 2.2x10\4\ 6.0x10\5\ \ \Ga-68........................ ............... 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 1.5x10\6\ 4.1x10\7\ \ \Ga-72........................ ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 1.1x10\5\ 3.1x10\6\ \ \Gd-146 (a)................... Gadolinium (64) 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 6.9x10\2\ 1.9x10\4\ \ \Gd-148....................... ............... 2.0x10\1 5.4x10\2 2.0x10-3 5.4x10-2 1.2 3.2x10\1\ \ \Gd-153....................... ............... 1.0x10\1 2.7x10\2 9.0 2.4x10\2 1.3x10\2\ 3.5x10\3\ \ \ \Gd-159....................... ............... 3.0 8.1x10\1 6.0x10-1 1.6x10\1 3.9x10\4\ 1.1x10\6\ \ \Ge-68 (a).................... Germanium (32). 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 2.6x10\2\ 7.1x10\3\ \ \Ge-71........................ ............... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 5.8x10\3\ 1.6x10\5\ \ \ \ \Ge-77........................ ............... 3.0x10-1 8.1 3.0x10-1 8.1 1.3x10\5\ 3.6x10\6\Hf-172 (a)................... Hafnium (72)... 6.0x10-1 1.6x10\1 6.0x10-1 1.6x10\1 4.1x10\1\ 1.1x10\3\ \ \Hf-175....................... ............... 3.0 8.1x10\1 3.0 8.1x10\1 3.9x10\2\ 1.1x10\4\ \ \Hf-181....................... ............... 2.0 5.4x10\1 5.0x10-1 1.4x10\1 6.3x10\2\ 1.7x10\4\ \ \Hf-182....................... ............... Unlimite Unlimite Unlimite Unlimite 8.1x10-6 2.2x10-4 d d d dHg-194 (a)................... Mercury (80)... 1.0 2.7x10\1 1.0 2.7x10\1 1.3x10-1 3.5 \ \Hg-195m (a).................. ............... 3.0 8.1x10\1 7.0x10-1 1.9x10\1 1.5x10\4\ 4.0x10\5\ \ \Hg-197....................... ............... 2.0x10\1 5.4x10\2 1.0x10\1 2.7x10\2 9.2x10\3\ 2.5x10\5\ \ \ \ \Hg-197m...................... ............... 1.0x10\1 2.7x10\2 4.0x10-1 1.1x10\1 2.5x10\4\ 6.7x10\5\ \ \ \Hg-203....................... ............... 5.0 1.4x10\2 1.0 2.7x10\1 5.1x10\2\ 1.4x10\4\ \ \Ho-166....................... Holmium (67)... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 2.6x10\4\ 7.0x10\5\ \ \Ho-166m...................... ............... 6.0x10-1 1.6x10\1 5.0x10-1 1.4x10\1 6.6x10-2 1.8 \ \I-123........................ Iodine (53).... 6.0 1.6x10\2 3.0 8.1x10\1 7.1x10\4\ 1.9x10\6\ \ \I-124........................ ............... 1.0 2.7x10\1 1.0 2.7x10\1 9.3x10\3\ 2.5x10\5\ \ \I-125........................ ............... 2.0x10\1 5.4x10\2 3.0 8.1x10\1 6.4x10\2\ 1.7x10\4\ \ \ \I-126........................ ............... 2.0 5.4x10\1 1.0 2.7x10\1 2.9x10\3\ 8.0x10\4\ \ \I-129........................ ............... Unlimite Unlimite Unlimite Unlimite 6.5x10-6 1.8x10-4 d d d dI-131........................ ............... 3.0 8.1x10\1 7.0x10-1 1.9x10\1 4.6x10\3\ 1.2x10\5\ \ \I-132........................ ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 3.8x10\5\ 1.0x10\7\ \ \I-133........................ ............... 7.0x10-1 1.9x10\1 6.0x10-1 1.6x10\1 4.2x10\4\ 1.1x10\6\ \ \I-134........................ ............... 3.0x10-1 8.1 3.0x10-1 8.1 9.9x10\5\ 2.7x10\7\I-135 (a).................... ............... 6.0x10-1 1.6x10\1 6.0x10-1 1.6x10\1 1.3x10\5\ 3.5x10\6\ \ \In-111....................... Indium (49).... 3.0 8.1x10\1 3.0 8.1x10\1 1.5x10\4\ 4.2x10\5\ \ \In-113m...................... ............... 4.0 1.1x10\2 2.0 5.4x10\1 6.2x10\5\ 1.7x10\7\ \ \In-114m (a).................. ............... 1.0x10\1 2.7x10\2 5.0x10-1 1.4x10\1 8.6x10\2\ 2.3x10\4\ \ \ \In-115m...................... ............... 7.0 1.9x10\2 1.0 2.7x10\1 2.2x10\5\ 6.1x10\6\ \ \Ir-189 (a)................... Iridium (77)... 1.0x10\1 2.7x10\2 1.0x10\1 2.7x10\2 1.9x10\3\ 5.2x10\4\ \ \ \ \Ir-190....................... ............... 7.0x10-1 1.9x10\1 7.0x10-1 1.9x10\1 2.3x10\3\ 6.2x10\4\ \ \Ir-192 (c)................... ............... 1.0 2.7x10\1 6.0x10-1 1.6x10\1 3.4x10\2\ 9.2x10\3\ \ \Ir-194....................... ............... 3.0x10-1 8.1 3.0x10-1 8.1 3.1x10\4\ 8.4x10\5\K-40......................... Potassium (19). 9.0x10-1 2.4x10\1 9.0x10-1 2.4x10\1 2.4x10-7 6.4x10-6 \ \K-42......................... ............... 2.0x10-1 5.4 2.0x10-1 5.4 2.2x10\5\ 6.0x10\6\K-43......................... ............... 7.0x10-1 1.9x10\1 6.0x10-1 1.6x10\1 1.2x10\5\ 3.3x10\6\ \ \Kr-81........................ Krypton (36)... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 7.8x10-4 2.1x10-2 \ \ \ \Kr-85........................ ............... 1.0x10\1 2.7x10\2 1.0x10\1 2.7x10\2 1.5x10\1\ 3.9x10\2\ \ \ \ \Kr-85m....................... ............... 8.0 2.2x10\2 3.0 8.1x10\1 3.0x10\5\ 8.2x10\6\ \ \Kr-87........................ ............... 2.0x10-1 5.4 2.0x10-1 5.4 1.0x10\6\ 2.8x10\7\La-137....................... Lanthanum (57). 3.0x10\1 8.1x10\2 6.0 1.6x10\2 1.6x10-3 4.4x10-2 \ \ \La-140....................... ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 2.1x10\4\ 5.6x10\5\ \ \Lu-172....................... Lutetium (71).. 6.0x10-1 1.6x10\1 6.0x10-1 1.6x10\1 4.2x10\3\ 1.1x10\5\ \ \Lu-173....................... ............... 8.0 2.2x10\2 8.0 2.2x10\2 5.6x10\1\ 1.5x10\3\ \ \Lu-174....................... ............... 9.0 2.4x10\2 9.0 2.4x10\2 2.3x10\1\ 6.2x10\2\ \ \Lu-174m...................... ............... 2.0x10\1 5.4x10\2 1.0x10\1 2.7x10\2 2.0x10\2\ 5.3x10\3\ \ \ \ \Lu-177....................... ............... 3.0x10\1 8.1x10\2 7.0x10-1 1.9x10\1 4.1x10\3\ 1.1x10\5\ \ \ \Mg-28 (a).................... Magnesium (12). 3.0x10-1 8.1 3.0x10-1 8.1 2.0x10\5\ 5.4x10\6\Mn-52........................ Manganese (25). 3.0x10-1 8.1 3.0x10-1 8.1 1.6x10\4\ 4.4x10\5\Mn-53........................ ............... Unlimite Unlimite Unlimite Unlimite 6.8x10-5 1.8x10-3 d d d dMn-54........................ ............... 1.0 2.7x10\1 1.0 2.7x10\1 2.9x10\2\ 7.7x10\3\ \ \Mn-56........................ ............... 3.0x10-1 8.1 3.0x10-1 8.1 8.0x10\5\ 2.2x10\7\Mo-93........................ Molybdenum (42) 4.0x10\1 1.1x10\3 2.0x10\1 5.4x10\2 4.1x10-2 1.1 \ \ \ \Mo-99 (a) (i)................ ............... 1.0 2.7x10\1 6.0x10-1 1.6x10\1 1.8x10\4\ 4.8x10\5\ \ \N-13......................... Nitrogen (7)... 9.0x10-1 2.4x10\1 6.0x10-1 1.6x10\1 5.4x10\7\ 1.5x10\9\ \ \Na-22........................ Sodium (11).... 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 2.3x10\2\ 6.3x10\3\ \ \Na-24........................ ............... 2.0x10-1 5.4 2.0x10-1 5.4 3.2x10\5\ 8.7x10\6\Nb-93m....................... Niobium (41)... 4.0x10\1 1.1x10\3 3.0x10\1 8.1x10\2 8.8 2.4x10\2\ \ \ \ \Nb-94........................ ............... 7.0x10-1 1.9x10\1 7.0x10-1 1.9x10\1 6.9x10-3 1.9x10-1 \ \Nb-95........................ ............... 1.0 2.7x10\1 1.0 2.7x10\1 1.5x10\3\ 3.9x10\4\ \ \Nb-97........................ ............... 9.0x10-1 2.4x10\1 6.0x10-1 1.6x10\1 9.9x10\5\ 2.7x10\7\ \ \Nd-147....................... Neodymium (60). 6.0 1.6x10\2 6.0x10-1 1.6x10\1 3.0x10\3\ 8.1x10\4\ \ \Nd-149....................... ............... 6.0x10-1 1.6x10\1 5.0x10-1 1.4x10\1 4.5x10\5\ 1.2x10\7\ \ \Ni-59........................ Nickel (28).... Unlimite Unlimite Unlimite Unlimite 3.0x10-3 8.0x10-2 d d d dNi-63........................ ............... 4.0x10\1 1.1x10\3 3.0x10\1 8.1x10\2 2.1 5.7x10\1\ \ \ \ \Ni-65........................ ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 7.1x10\5\ 1.9x10\7\ \ \Np-235....................... Neptunium (93). 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 5.2x10\1\ 1.4x10\3\ \ \ \ \Np-236 (short-lived)......... ............... 2.0x10\1 5.4x10\2 2.0 5.4x10\1 4.7x10-4 1.3x10-2 \ \ \Np-236 (long-lived).......... ............... 9.0x10\0 2.4x10\2 2.0x10-2 5.4x10-1 4.7x10-4 1.3x10-2 \ \Np-237....................... ............... 2.0x10\1 5.4x10\2 2.0x10-3 5.4x10-2 2.6x10-5 7.1x10-4 \ \Np-239....................... ............... 7.0 1.9x10\2 4.0x10-1 1.1x10\1 8.6x10\3\ 2.3x10\5\ \ \Os-185....................... Osmium (76).... 1.0 2.7x10\1 1.0 2.7x10\1 2.8x10\2\ 7.5x10\3\ \ \Os-191....................... ............... 1.0x10\1 2.7x10\2 2.0 5.4x10\1 1.6x10\3\ 4.4x10\4\ \ \ \Os-191m...................... ............... 4.0x10\1 1.1x10\3 3.0x10\1 8.1x10\2 4.6x10\4\ 1.3x10\6\ \ \ \ \Os-193....................... ............... 2.0 5.4x10\1 6.0x10-1 1.6x10\1 2.0x10\4\ 5.3x10\5\ \ \Os-194 (a)................... ............... 3.0x10-1 8.1 3.0x10-1 8.1 1.1x10\1\ 3.1x10\2\P-32......................... Phosphorus (15) 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 1.1x10\4\ 2.9x10\5\ \ \P-33......................... ............... 4.0x10\1 1.1x10\3 1.0 2.7x10\1 5.8x10\3\ 1.6x10\5\ \ \ \Pa-230 (a)................... Protactinium 2.0 5.4x10\1 7.0x10-2 1.9 1.2x10\3\ 3.3x10\4\ (91). \Pa-231....................... ............... 4.0 1.1x10\2 4.0x10-4 1.1x10-2 1.7x10-3 4.7x10-2 \Pa-233....................... ............... 5.0 1.4x10\2 7.0x10-1 1.9x10\1 7.7x10\2\ 2.1x10\4\ \ \Pb-201....................... Lead (82)...... 1.0 2.7x10\1 1.0 2.7x10\1 6.2x10\4\ 1.7x10\6\ \ \Pb-202....................... ............... 4.0x10\1 1.1x10\3 2.0x10\1 5.4x10\2 1.2x10-4 3.4x10-3 \ \ \ \Pb-203....................... ............... 4.0 1.1x10\2 3.0 8.1x10\1 1.1x10\4\ 3.0x10\5\ \ \Pb-205....................... ............... Unlimite Unlimite Unlimite Unlimite 4.5x10-6 1.2x10-4 d d d dPb-210 (a)................... ............... 1.0 2.7x10\1 5.0x10-2 1.4 2.8 7.6x10\1\ \Pb-212 (a)................... ............... 7.0x10-1 1.9x10\1 2.0x10-1 5.4 5.1x10\4\ 1.4x10\6\ \Pd-103 (a)................... Palladium (46). 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 2.8x10\3\ 7.5x10\4\ \ \ \ \Pd-107....................... ............... Unlimite Unlimite Unlimite Unlimite 1.9x10-5 5.1x10-4 d d d dPd-109....................... ............... 2.0 5.4x10\1 5.0x10-1 1.4x10\1 7.9x10\4\ 2.1x10\6\ \ \Pm-143....................... Promethium (61) 3.0 8.1x10\1 3.0 8.1x10\1 1.3x10\2\ 3.4x10\3\ \ \Pm-144....................... ............... 7.0x10-1 1.9x10\1 7.0x10-1 1.9x10\1 9.2x10\1\ 2.5x10\3\ \ \Pm-145....................... ............... 3.0x10\1 8.1x10\2 1.0x10\1 2.7x10\2 5.2 1.4x10\2\ \ \ \ \Pm-147....................... ............... 4.0x10\1 1.1x10\3 2.0 5.4x10\1 3.4x10\1\ 9.3x10\2\ \ \ \Pm-148m (a).................. ............... 8.0x10-1 2.2x10\1 7.0x10-1 1.9x10\1 7.9x10\2\ 2.1x10\4\ \ \Pm-149....................... ............... 2.0 5.4x10\1 6.0x10-1 1.6x10\1 1.5x10\4\ 4.0x10\5\ \ \Pm-151....................... ............... 2.0 5.4x10\1 6.0x10-1 1.6x10\1 2.7x10\4\ 7.3x10\5\ \ \Po-210....................... Polonium (84).. 4.0x10\1 1.1x10\3 2.0x10-2 5.4x10-1 1.7x10\2\ 4.5x10\3\ \ \Pr-142....................... Praseodymium 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 4.3x10\4\ 1.2x10\6\ (59). \ \Pr-143....................... ............... 3.0 8.1x10\1 6.0x10-1 1.6x10\1 2.5x10\3\ 6.7x10\4\ \ \Pt-188 (a)................... Platinum (78).. 1.0 2.7x10\1 8.0x10-1 2.2x10\1 2.5x10\3\ 6.8x10\4\ \ \Pt-191....................... ............... 4.0 1.1x10\2 3.0 8.1x10\1 8.7x10\3\ 2.4x10\5\ \ \Pt-193....................... ............... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 1.4 3.7x10\1\ \ \ \ \Pt-193m...................... ............... 4.0x10\1 1.1x10\3 5.0x10-1 1.4x10\1 5.8x10\3\ 1.6x10\5\ \ \ \Pt-195m...................... ............... 1.0x10\1 2.7x10\2 5.0x10-1 1.4x10\1 6.2x10\3\ 1.7x10\5\ \ \ \Pt-197....................... ............... 2.0x10\1 5.4x10\2 6.0x10-1 1.6x10\1 3.2x10\4\ 8.7x10\5\ \ \ \Pt-197m...................... ............... 1.0x10\1 2.7x10\2 6.0x10-1 1.6x10\1 3.7x10\5\ 1.0x10\7\ \ \ \Pu-236....................... Plutonium (94). 3.0x10\1 8.1x10\2 3.0x10-3 8.1x10-2 2.0x10\1\ 5.3x10\2\ \ \Pu-237....................... ............... 2.0x10\1 5.4x10\2 2.0x10\1 5.4x10\2 4.5x10\2\ 1.2x10\4\ \ \ \ \Pu-238....................... ............... 1.0x10\1 2.7x10\2 1.0x10-3 2.7x10-2 6.3x10-1 1.7x10\1\ \ \Pu-239....................... ............... 1.0x10\1 2.7x10\2 1.0x10-3 2.7x10-2 2.3x10-3 6.2x10-2 \ \Pu-240....................... ............... 1.0x10\1 2.7x10\2 1.0x10-3 2.7x10-2 8.4x10-3 2.3x10-1 \ \Pu-241 (a)................... ............... 4.0x10\1 1.1x10\3 6.0x10-2 1.6 3.8 1.0x10\2\ \ \Pu-242....................... ............... 1.0x10\1 2.7x10\2 1.0x10-3 2.7x10-2 1.5x10-4 3.9x10-3 \ \Pu-244 (a)................... ............... 4.0x10-1 1.1x10\1 1.0x10-3 2.7x10-2 6.7x10-7 1.8x10-5 \Ra-223 (a)................... Radium (88).... 4.0x10-1 1.1x10\1 7.0x10-3 1.9x10-1 1.9x10\3\ 5.1x10\4\ \Ra-224 (a)................... ............... 4.0x10-1 1.1x10\1 2.0x10-2 5.4x10-1 5.9x10\3\ 1.6x10\5\ \Ra-225 (a)................... ............... 2.0x10-1 5.4 4.0x10-3 1.1x10-1 1.5x10\3\ 3.9x10\4\Ra-226 (a)................... ............... 2.0x10-1 5.4 3.0x10-3 8.1x10-2 3.7x10-2 1.0Ra-228 (a)................... ............... 6.0x10-1 1.6x10\1 2.0x10-2 5.4x10-1 1.0x10\1\ 2.7x10\2\ \Rb-81........................ Rubidium (37).. 2.0 5.4x10\1 8.0x10-1 2.2x10\1 3.1x10\5\ 8.4x10\6\ \ \Rb-83 (a).................... ............... 2.0 5.4x10\1 2.0 5.4x10\1 6.8x10\2\ 1.8x10\4\ \ \Rb-84........................ ............... 1.0 2.7x10\1 1.0 2.7x10\1 1.8x10\3\ 4.7x10\4\ \ \Rb-86........................ ............... 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 3.0x10\3\ 8.1x10\4\ \ \Rb-87........................ ............... Unlimite Unlimite Unlimite Unlimite 3.2x10-9 8.6x10-8 d d d dRb(nat)...................... ............... Unlimite Unlimite Unlimite Unlimite 6.7x10\6\ 1.8x10\8\ d d d dRe-184....................... Rhenium (75)... 1.0 2.7x10\1 1.0 2.7x10\1 6.9x10\2\ 1.9x10\4\ \ \Re-184m...................... ............... 3.0 8.1x10\1 1.0 2.7x10\1 1.6x10\2\ 4.3x10\3\ \ \Re-186....................... ............... 2.0 5.4x10\1 6.0x10-1 1.6x10\1 6.9x10\3\ 1.9x10\5\ \ \Re-187....................... ............... Unlimite Unlimite Unlimite Unlimite 1.4x10-9 3.8x10-8 d d d dRe-188....................... ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 3.6x10\4\ 9.8x10\5\ \ \Re-189 (a)................... ............... 3.0 8.1x10\1 6.0x10-1 1.6x10\1 2.5x10\4\ 6.8x10\5\ \ \Re(nat)...................... ............... Unlimite Unlimite Unlimite Unlimite 0.0 2.4x10-8 d d d dRh-99........................ Rhodium (45)... 2.0 5.4x10\1 2.0 5.4x10\1 3.0x10\3\ 8.2x10\4\ \ \Rh-101....................... ............... 4.0 1.1x10\2 3.0 8.1x10\1 4.1x10\1\ 1.1x10\3\ \ \Rh-102....................... ............... 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 4.5x10\1\ 1.2x10\3\ \ \Rh-102m...................... ............... 2.0 5.4x10\1 2.0 5.4x10\1 2.3x10\2\ 6.2x10\3\ \ \Rh-103m...................... ............... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 1.2x10\6\ 3.3x10\7\ \ \ \ \Rh-105....................... ............... 1.0x10\1 2.7x10\2 8.0x10-1 2.2x10\1 3.1x10\4\ 8.4x10\5\ \ \ \Rn-222 (a)................... Radon (86)..... 3.0x10-1 8.1 4.0x10-3 1.1x10-1 5.7x10\3\ 1.5x10\5\Ru-97........................ Ruthenium (44). 5.0 1.4x10\2 5.0 1.4x10\2 1.7x10\4\ 4.6x10\5\ \ \Ru-103 (a)................... ............... 2.0 5.4x10\1 2.0 5.4x10\1 1.2x10\3\ 3.2x10\4\ \ \Ru-105....................... ............... 1.0 2.7x10\1 6.0x10-1 1.6x10\1 2.5x10\5\ 6.7x10\6\ \ \Ru-106 (a)................... ............... 2.0x10-1 5.4 2.0x10-1 5.4 1.2x10\2\ 3.3x10\3\S-35......................... Sulphur (16)... 4.0x10\1 1.1x10\3 3.0 8.1x10\1 1.6x10\3\ 4.3x10\4\ \ \ \Sb-122....................... Antimony (51).. 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 1.5x10\4\ 4.0x10\5\ \ \Sb-124....................... ............... 6.0x10-1 1.6x10\1 6.0x10-1 1.6x10\1 6.5x10\2\ 1.7x10\4\ \ \Sb-125....................... ............... 2.0 5.4x10\1 1.0 2.7x10\1 3.9x10\1\ 1.0x10\3\ \ \Sb-126....................... ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 3.1x10\3\ 8.4x10\4\ \ \Sc-44........................ Scandium (21).. 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 6.7x10\5\ 1.8x10\7\ \ \Sc-46........................ ............... 5.0x10-1 1.4x10\1 5.0x10-1 1.4x10\1 1.3x10\3\ 3.4x10\4\ \ \Sc-47........................ ............... 1.0x10\1 2.7x10\2 7.0x10-1 1.9x10\1 3.1x10\4\ 8.3x10\5\ \ \ \Sc-48........................ ............... 3.0x10-1 8.1 3.0x10-1 8.1 5.5x10\4\ 1.5x10\6\Se-75........................ Selenium (34).. 3.0 8.1x10\1 3.0 8.1x10\1 5.4x10\2\ 1.5x10\4\ \ \Se-79........................ ............... 4.0x10\1 1.1x10\3 2.0 5.4x10\1 2.6x10-3 7.0x10-2 \ \ \Si-31........................ Silicon (14)... 6.0x10-1 1.6x10\1 6.0x10-1 1.6x10\1 1.4x10\6\ 3.9x10\7\ \ \Si-32........................ ............... 4.0x10\1 1.1x10\3 5.0x10-1 1.4x10\1 3.9 1.1x10\2\ \ \ \Sm-145....................... Samarium (62).. 1.0x10\1 2.7x10\2 1.0x10\1 2.7x10\2 9.8x10\1\ 2.6x10\3\ \ \ \ \Sm-147....................... ............... Unlimite Unlimite Unlimite Unlimite 8.5x10-1 2.3x10-8 d d d dSm-151....................... ............... 4.0x10\1 1.1x10\3 1.0x10\1 2.7x10\2 9.7x10-1 2.6x10\1\ \ \ \ \Sm-153....................... ............... 9.0 2.4x10\2 6.0x10-1 1.6x10\1 1.6x10\4\ 4.4x10\5\ \ \Sn-113 (a)................... Tin (50)....... 4.0 1.1x10\2 2.0 5.4x10\1 3.7x10\2\ 1.0x10\4\ \ \Sn-117m...................... ............... 7.0 1.9x10\2 4.0x10-1 1.1x10\1 3.0x10\3\ 8.2x10\4\ \ \Sn-119m...................... ............... 4.0x10\1 1.1x10\3 3.0x10\1 8.1x10\2 1.4x10\2\ 3.7x10\3\ \ \ \ \Sn-121m (a).................. ............... 4.0x10\1 1.1x10\3 9.0x10-1 2.4x10\1 2.0 5.4x10\1\ \ \ \Sn-123....................... ............... 8.0x10-1 2.2x10\1 6.0x10-1 1.6x10\1 3.0x10\2\ 8.2x10\3\ \ \Sn-125....................... ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 4.0x10\3\ 1.1x10\5\ \ \Sn-126 (a)................... ............... 6.0x10-1 1.6x10\1 4.0x10-1 1.1x10\1 1.0x10-3 2.8x10-2 \ \Sr-82 (a).................... Strontium (38). 2.0x10-1 5.4 2.0x10-1 5.4 2.3x10\3\ 6.2x10\4\Sr-85........................ ............... 2.0 5.4x10\1 2.0 5.4x10\1 8.8x10\2\ 2.4x10\4\ \ \Sr-85m....................... ............... 5.0 1.4x10\2 5.0 1.4x10\2 1.2x10\6\ 3.3x10\7\ \ \Sr-87m....................... ............... 3.0 8.1x10\1 3.0 8.1x10\1 4.8x10\5\ 1.3x10\7\ \ \Sr-89........................ ............... 6.0x10-1 1.6x10\1 6.0x10-1 1.6x10\1 1.1x10\3\ 2.9x10\4\ \ \Sr-90 (a).................... ............... 3.0x10-1 8.1 3.0x10-1 8.1 5.1 1.4x10\2\Sr-91 (a).................... ............... 3.0x10-1 8.1 3.0x10-1 8.1 1.3x10\5\ 3.6x10\6\Sr-92 (a).................... ............... 1.0 2.7x10\1 3.0x10-1 8.1 4.7x10\5\ 1.3x10\7\ \T(H-3)....................... Tritium (1).... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 3.6x10\2\ 9.7x10\3\ \ \ \ \Ta-178 (long-lived).......... Tantalum (73).. 1.0 2.7x10\1 8.0x10-1 2.2x10\1 4.2x10\6\ 1.1x10\8\ \ \Ta-179....................... ............... 3.0x10\1 8.1x10\2 3.0x10\1 8.1x10\2 4.1x10\1\ 1.1x10\3\ \ \ \ \Ta-182....................... ............... 9.0x10-1 2.4x10\1 5.0x10-1 1.4x10\1 2.3x10\2\ 6.2x10\3\ \ \Tb-157....................... Terbium (65)... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 5.6x10-1 1.5x10\1\ \ \ \ \Tb-158....................... ............... 1.0 2.7x10\1 1.0 2.7x10\1 5.6x10-1 1.5x10\1\ \ \Tb-160....................... ............... 1.0 2.7x10\1 6.0x10-1 1.6x10\1 4.2x10\2\ 1.1x10\4\ \ \Tc-95m (a)................... Technetium (43) 2.0 5.4x10\1 2.0 5.4x10\1 8.3x10\2\ 2.2x10\4\ \ \Tc-96........................ ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 1.2x10\4\ 3.2x10\5\ \ \Tc-96m (a)................... ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 1.4x10\6\ 3.8x10\7\ \ \Tc-97........................ ............... Unlimite Unlimite Unlimite Unlimite 5.2x10-5 1.4x10-3 d d d dTc-97m....................... ............... 4.0x10\1 1.1x10\3 1.0 2.7x10\1 5.6x10\2\ 1.5x10\4\ \ \ \Tc-98........................ ............... 8.0x10-1 2.2x10\1 7.0x10-1 1.9x10\1 3.2x10-5 8.7x10-4 \ \Tc-99........................ ............... 4.0x10\1 1.1x10\3 9.0x10-1 2.4x10\1 6.3x10-4 1.7x10-2 \ \ \Tc-99m....................... ............... 1.0x10\1 2.7x10\2 4.0 1.1x10\2 1.9x10\5\ 5.3x10\6\ \ \ \Te-121....................... Tellurium (52). 2.0 5.4x10\1 2.0 5.4x10\1 2.4x10\3\ 6.4x10\4\ \ \Te-121m...................... ............... 5.0 1.4x10\2 3.0 8.1x10\1 2.6x10\2\ 7.0x10\3\ \ \Te-123m...................... ............... 8.0 2.2x10\2 1.0 2.7x10\1 3.3x10\2\ 8.9x10\3\ \ \Te-125m...................... ............... 2.0x10\1 5.4x10\2 9.0x10-1 2.4x10\1 6.7x10\2\ 1.8x10\4\ \ \ \Te-127....................... ............... 2.0x10\1 5.4x10\2 7.0x10-1 1.9x10\1 9.8x10\4\ 2.6x10\6\ \ \ \Te-127m (a).................. ............... 2.0x10\1 5.4x10\2 5.0x10-1 1.4x10\1 3.5x10\2\ 9.4x10\3\ \ \ \Te-129....................... ............... 7.0x10-1 1.9x10\1 6.0x10-1 1.6x10\1 7.7x10\5\ 2.1x10\7\ \ \Te-129m (a).................. ............... 8.0x10-1 2.2x10\1 4.0x10-1 1.1x10\1 1.1x10\3\ 3.0x10\4\ \ \Te-131m (a).................. ............... 7.0x10-1 1.9x10\1 5.0x10-1 1.4x10\1 3.0x10\4\ 8.0x10\5\ \ \Te-132 (a)................... ............... 5.0x10-1 1.4x10\1 4.0x10-1 1.1x10\1 1.1x10\4\ 3.0x10\5\ \ \Th-227....................... Thorium (90)... 1.0x10\1 2.7x10\2 5.0x10-3 1.4x10-1 1.1x10\3\ 3.1x10\4\ \ \Th-228 (a)................... ............... 5.0x10-1 1.4x10\1 1.0x10-3 2.7x10-2 3.0x10\1\ 8.2x10\2\ \Th-229....................... ............... 5.0 1.4x10\2 5.0x10-4 1.4x10-2 7.9x10-3 2.1x10-1 \Th-230....................... ............... 1.0x10\1 2.7x10\2 1.0x10-3 2.7x10-2 7.6x10-4 2.1x10-2 \ \Th-231....................... ............... 4.0x10\1 1.1x10\3 2.0x10-2 5.4x10-1 2.0x10\4\ 5.3x10\5\ \ \Th-232....................... ............... Unlimite Unlimite Unlimite Unlimite 4.0x10-9 1.1x10-7 d d d dTh-234 (a)................... ............... 3.0x10-1 8.1 3.0x10-1 8.1 8.6x10\2\ 2.3x10\4\Th(nat)...................... ............... Unlimite Unlimite Unlimite Unlimite 8.1x10-9 2.2x10-7 d d d dTi-44 (a).................... Titanium (22).. 5.0x10-1 1.4x10\1 4.0x10-1 1.1x10\1 6.4 1.7x10\2\ \ \Tl-200....................... Thallium (81).. 9.0x10-1 2.4x10\1 9.0x10-1 2.4x10\1 2.2x10\4\ 6.0x10\5\ \ \Tl-201....................... ............... 1.0x10\1 2.7x10\2 4.0 1.1x10\2 7.9x10\3\ 2.1x10\5\ \ \ \Tl-202....................... ............... 2.0 5.4x10\1 2.0 5.4x10\1 2.0x10\3\ 5.3x10\4\ \ \Tl-204....................... ............... 1.0x10\1 2.7x10\2 7.0x10-1 1.9x10\1 1.7x10\1\ 4.6x10\2\ \ \ \Tm-167....................... Thulium (69)... 7.0 1.9x10\2 8.0x10-1 2.2x10\1 3.1x10\3\ 8.5x10\4\ \ \Tm-170....................... ............... 3.0 8.1x10\1 6.0x10-1 1.6x10\1 2.2x10\2\ 6.0x10\3\ \ \Tm-171....................... ............... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 4.0x10\1\ 1.1x10\3\ \ \ \ \U-230 (fast lung absorption) Uranium (92)... 4.0x10\1 1.1x10\3 1.0x10-1 2.7 1.0x10\3\ 2.7x10\4\ (a)(d). \ \U-230 (medium lung ............... 4.0x10\1 1.1x10\3 4.0x10-3 1.1x10-1 1.0x10\3\ 2.7x10\4\ absorption) (a)(e). \ \U-230 (slow lung absorption) ............... 3.0x10\1 8.1x10\2 3.0x10-3 8.1x10-2 1.0x10\3\ 2.7x10\4\ (a)(f). \ \U-232 (fast lung absorption) ............... 4.0x10\1 1.1x10\3 1.0x10-2 2.7x10-1 8.3x10-1 2.2x10\1\ (d). \ \U-232 (medium lung ............... 4.0x10\1 1.1x10\3 7.0x10-3 1.9x10-1 8.3x10-1 2.2x10\1\ absorption) (e). \ \U-232 (slow lung absorption) ............... 1.0x10\1 2.7x10\2 1.0x10-3 2.7x10-2 8.3x10-1 2.2x10\1\ (f). \ \U-233 (fast lung absorption) ............... 4.0x10\1 1.1x10\3 9.0x10-2 2.4 3.6x10-4 9.7x10-3 (d). \ \U-233 (medium lung ............... 4.0x10\1 1.1x10\3 2.0x10-2 5.4x10-1 3.6x10-4 9.7x10-3 absorption) (e). \ \U-233 (slow lung absorption) ............... 4.0x10\1 1.1x10\3 6.0x10-3 1.6x10-1 3.6x10-4 9.7x10-3 (f). \ \U-234 (fast lung absorption) ............... 4.0x10\1 1.1x10\3 9.0x10-2 2.4 2.3x10-4 6.2x10-3 (d). \ \U-234 (medium lung ............... 4.0x10\1 1.1x10\3 2.0x10-2 5.4x10-1 2.3x10-4 6.2x10-3 absorption) (e). \ \U-234 (slow lung absorption) ............... 4.0x10\1 1.1x10\3 6.0x10-3 1.6x10-1 2.3x10-4 6.2x10-3 (f). \ \U-235 (all lung absorption ............... Unlimite Unlimite Unlimite Unlimite 8.0x10-8 2.2x10-6 types) (a),(d),(e),(f). d d d dU-236 (fast lung absorption) ............... Unlimite Unlimite Unlimite Unlimite 2.4x10-6 6.5x10-5 (d). d d d dU-236 (medium lung ............... 4.0x10\1 1.1x10\3 2.0x10-2 5.4x10-1 2.4x10-6 6.5x10-5 absorption) (e). \ \U-236 (slow lung absorption) ............... 4.0x10\1 1.1x10\3 6.0x10-3 1.6x10-1 2.4x10-6 6.5x10-5 (f). \ \U-238 (all lung absorption ............... Unlimite Unlimite Unlimite Unlimite 1.2x10-8 3.4x10-7 types) (d),(e),(f). d d d dU (nat)...................... ............... Unlimite Unlimite Unlimite Unlimite 2.6x10-8 7.1x10-7 d d d dU (enriched to 20% or ............... Unlimite Unlimite Unlimite Unlimite see § see § less)(g). d d d d 173.434 173.434U (dep)...................... ............... Unlimite Unlimite Unlimite Unlimite see § see § d d d d 173.434 173.434V-48......................... Vanadium (23).. 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 6.3x10\3\ 1.7x10\5\ \ \V-49......................... ............... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 3.0x10\2\ 8.1x10\3\ \ \ \ \W-178 (a).................... Tungsten (74).. 9.0 2.4x10\2 5.0 1.4x10\2 1.3x10\3\ 3.4x10\4\ \ \W-181........................ ............... 3.0x10\1 8.1x10\2 3.0x10\1 8.1x10\2 2.2x10\2\ 6.0x10\3\ \ \ \ \W-185........................ ............... 4.0x10\1 1.1x10\3 8.0x10-1 2.2x10\1 3.5x10\2\ 9.4x10\3\ \ \ \W-187........................ ............... 2.0 5.4x10\1 6.0x10-1 1.6x10\1 2.6x10\4\ 7.0x10\5\ \ \W-188 (a).................... ............... 4.0x10-1 1.1x10\1 3.0x10-1 8.1 3.7x10\2\ 1.0x10\4\ \Xe-122 (a)................... Xenon (54)..... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 4.8x10\4\ 1.3x10\6\ \ \Xe-123....................... ............... 2.0 5.4x10\1 7.0x10-1 1.9x10\1 4.4x10\5\ 1.2x10\7\ \ \Xe-127....................... ............... 4.0 1.1x10\2 2.0 5.4x10\1 1.0x10\3\ 2.8x10\4\ \ \Xe-131m...................... ............... 4.0x10\1 1.1x10\3 4.0x10\1 1.1x10\3 3.1x10\3\ 8.4x10\4\ \ \ \ \Xe-133....................... ............... 2.0x10\1 5.4x10\2 1.0x10\1 2.7x10\2 6.9x10\3\ 1.9x10\5\ \ \ \ \Xe-135....................... ............... 3.0 8.1x10\1 2.0 5.4x10\1 9.5x10\4\ 2.6x10\6\ \ \Y-87 (a)..................... Yttrium (39)... 1.0 2.7x10\1 1.0 2.7x10\1 1.7x10\4\ 4.5x10\5\ \ \Y-88......................... ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 5.2x10\2\ 1.4x10\4\ \ \Y-90......................... ............... 3.0x10-1 8.1 3.0x10-1 8.1 2.0x10\4\ 5.4x10\5\Y-91......................... ............... 6.0x10-1 1.6x10\1 6.0x10-1 1.6x10\1 9.1x10\2\ 2.5x10\4\ \ \Y-91m........................ ............... 2.0 5.4x10\1 2.0 5.4x10\1 1.5x10\6\ 4.2x10\7\ \ \Y-92......................... ............... 2.0x10-1 5.4 2.0x10-1 5.4 3.6x10\5\ 9.6x10\6\Y-93......................... ............... 3.0x10-1 8.1 3.0x10-1 8.1 1.2x10\5\ 3.3x10\6\Yb-169....................... Ytterbium (70). 4.0 1.1x10\2 1.0 2.7x10\1 8.9x10\2\ 2.4x10\4\ \ \Yb-175....................... ............... 3.0x10\1 8.1x10\2 9.0x10-1 2.4x10\1 6.6x10\3\ 1.8x10\5\ \ \ \Zn-65........................ Zinc (30)...... 2.0 5.4x10\1 2.0 5.4x10\1 3.0x10\2\ 8.2x10\3\ \ \Zn-69........................ ............... 3.0 8.1x10\1 6.0x10-1 1.6x10\1 1.8x10\6\ 4.9x10\7\ \ \Zn-69m (a)................... ............... 3.0 8.1x10\1 6.0x10-1 1.6x10\1 1.2x10\5\ 3.3x10\6\ \ \Zr-88........................ Zirconium (40). 3.0 8.1x10\1 3.0 8.1x10\1 6.6x10\2\ 1.8x10\4\ \ \Zr-93........................ ............... Unlimite Unlimite Unlimite Unlimite 9.3x10-5 2.5x10-3 d d d dZr-95 (a).................... ............... 2.0 5.4x10\1 8.0x10-1 2.2x10\1 7.9x10\2\ 2.1x10\4\ \ \Zr-97 (a).................... ............... 4.0x10-1 1.1x10\1 4.0x10-1 1.1x10\1 7.1x10\4\ 1.9x10\6\ \ \----------------------------------------------------------------------------------------------------------------\a\ A1 and/or A2 values include contributions from daughter nuclides with half-lives less than 10 days.\b\ The values of A1 and A2 in curies (Ci) are approximate and for information only; the regulatory standard units are Terabecquerels (TBq), (see § 171.10).\c\ The quantity may be determined from a measurement of the rate of decay or a measurement of the radiation level at a prescribed distance from the source.\d\ These values apply only to compounds of uranium that take the chemical form of UF6, UO2F2 and UO2(NO3)2 in both normal and accident conditions of transport.\e\ These values apply only to compounds of uranium that take the chemical form of UO3, UF4, UCl4 and hexavalent compounds in both normal and accident conditions of transport.\f\ These values apply to all compounds of uranium other than those specified in notes (d) and (e) of this table.\g\ These values apply to unirradiated uranium only.\h\ A1 = 0.1 TBq (2.7 Ci) and A2 = 0.001 TBq (0.027 Ci) for Cf-252 for domestic use.\i\ A2 = 0.74 TBq (20 Ci) for Mo-99 for domestic use.
