292 AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P4030.19H/ DLAI 4145.3 11 DECEMBER 2001 Symbol of Radionuclide Element and Atomic Number ^A1^(TBq) (Special form) ^A2^(TBq) (Other form) Activity concentration for exempt material Activity limit for an exempt consignment Co-57 10 10 1 x 10² 1 x 10⁶ Co-58m 40 40 1 x 10⁴ 1 x 10⁷ Co-58 1 1 1 x 10¹ 1 x 10⁶ Co-60 0.4 0.4 1 x 10¹ 1 x 10⁵ Cr-51 Chromium (24) 30 30 1 x 10³ 1 x 10⁷ Cs-129 Cesium (55) 4 4 1 x 10² 1 x 10⁵ Cs-131 30 30 1 x 10³ 1 x 10⁶ Cs-132 1 1 1 x 10³ 1 x 10⁶ Cs-134 40 0.6 1 x 10³ 1 x 10⁵ Cs-134m 0.7 0.7 1 x 10¹ 1 x 10⁴ Cs-135 40 1 1 x 10⁴ 1 x 10⁷ Cs-136 0.5 0.5 1 x 10¹ 1 x 10⁵ Cs-137^a 2 0.6 1 x 10^1b 1 x 10^4b Cu-64 Copper (29) 6 1 1 x 10² 1 x 10⁶ Cu-67 10 0.7 1 x 10² 1 x 10⁶ Dy-159 Dysprosium (66) 20 20 1 x 10³ 1 x 10⁷ Dy-165 0.9 0.6 1 x 10³ 1 x 10⁶ Dy-166^a 0.9 0.3 1 x 10³ 1 x 10⁶ Er-169 Erbium (68) 40 1 1 x 10⁴ 1 x 10⁷ Er-171 0.8 0.5 1 x 10² 1 x 10⁶ Eu-147 Europium (63) 2 2 1 x 10² 1 x 10⁶ Eu-148 0.5 0.5 1 x 10¹ 1 x 10⁶ Eu-149 20 20 1 x 10² 1 x 10⁷ Eu-150 (short lived) 2 0.7 1 x 10³ 1 x 10⁶ Eu-150 (long lived) 0.7 0.7 1 x 10¹ 1 x 10⁶ Eu-152 0.8 0.8 1 x 10² 1 x 10⁶ Eu-152m 1 1 1 x 10¹ 1 x 10⁶ Eu-154 0.9 0.6 1 x 10¹ 1 x 10⁶ Eu-155 20 3 1 x 10² 1 x 10⁷ Eu-156 0.7 0.7 1 x 10¹ 1 x 10⁶ F-18 Fluorine (9) 1 0.6 1 x 10¹ 1 x 10⁶ Fe-52^a Iron (26) 0.3 0.3 1 x 10¹ 1 x 10⁶ Fe-55 40 40 1 x 10⁴ 1 x 10⁶ Fe-59 0.9 0.9 1 x 10¹ 1 x 10⁶ Fe-60^a 40 0.2 1 x 10² 1 x 10⁵ Ga-67 Gallium (31) 7 3 1 x 10² 1 x 10⁶ Ga-68 0.5 0.5 1 x 10¹ 1 x 10⁵ Ga-72 0.4 0.4 1 x 10¹ 1 x 10⁵ Gd-146 Gadolinium (64) 0.5 0.5 1 x 10¹ 1 x 10⁶ Gd-148 20 0.002 1 x 10¹ 1 x 10⁴ Gd-153 10 9 1 x 10² 1 x 10⁷ Gd-159 3 0.6 1 x 10³ 1 x 10⁶ Ge-68 Germanium (32) 0.5 0.5 1 x 10¹ 1 x 10⁵ Ge-71 40 40 1 x 10⁴ 1 x 10⁸