AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P4030.19H/ DLAI 4145.3 297 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 Sr-92 a 1 0.3 1 x 10¹ 1 x 10⁶ T (All Forms) Tritium (1) 40 40 1 x 10⁶ 1 x 10⁹ Ta-178 (long lived) Tantalum (73) 1 0.8 1 x 10¹ 1 x 10⁶ Ta-179 30 30 1 x 10³ 1 x 10⁷ Ta-182 0.9 0.5 1 x 10¹ 1 x 10⁴ Tb-157 Terbium (65) 40 40 1 x 10⁴ 1 x 10⁷ Tb-158 1 1 1 x 10¹ 1 x 10⁶ Tb-160 1 0.6 1 x 10¹ 1 x 10⁶ Tc-95m a Technetium (43) 2 2 1 x 10¹ 1 x 10⁶ Tc-96 0.4 0.4 1 x 10³ 1 x 10⁷ Tc-96 m a 0.4 0.4 1 x 10¹ 1 x 10⁶ Tc-97 40 1 1 x 10³ 1 x 10⁷ Tc-97 m Unlimited Unlimited 1 x 10³ 1 x 10⁸ Tc-98 0.8 0.7 1 x 10¹ 1 x 10⁶ Tc-99 10 4 1 x 10² 1 x 10⁷ Tc-99 m 40 0.9 1 x 10⁴ 1 x 10⁷ Te-121 Tellurium (52) 5 3 1 x 10² 1 x 10⁵ Te-121 m 2 2 1 x 10¹ 1 x 10⁶ Te-123m 8 1 1 x 10² 1 x 10⁷ Te-125m 20 0.9 1 x 10³ 1 x 10⁷ Te-127 20 0.5 1 x 10³ 1 x 10⁷ Te-127 m^a 20 0.7 1 x 10³ 1 x 10⁶ Te-129 0.8 0.4 1 x 10³ 1 x 10⁶ Te-129 m^a 0.7 0.6 1 x 10² 1 x 10⁶ Te-131m^a 0.7 0.5 1 x 10¹ 1 x 10⁶ Te-132^a 0.5 0.4 1 x 10² 1 x 10⁷ Th-227 Thorium (90) 10 0.005 1 x 10¹ 1 x 10⁴ Th-228^a 0.5 0.001 1 x 10^0b 1 x 10^4b Th-229 5 0.0005 1 x 10^0b 1 x 10^3b Th-230 10 0.001 1 x 10⁰ 1 x 10⁴ Th-231 40 0.02 1 x 10³ 1 x 10⁷ Th-232 Unlimited Unlimited 1 x 10¹ 1 x 10⁴ Th-234^a 0.3 0.3 1 x 10^3b 1 x 10^5b Th (natural) Unlimited Unlimited 1 x 10^0b 1 x 10^3b Ti-44^a Titanium (22) 0.5 0.4 1 x 10¹ 1 x 10⁵ Tl-200 Thallium (81) 0.9 0.9 1 x 10¹ 1 x 10⁶ Tl-201 10 4 1 x 10² 1 x 10⁶ Tl-202 2 2 1 x 10² 1 x 10⁶ Tl-204 10 0.7 1 x 10⁴ 1 x 10⁴ Tm-167 Thulium (69) 7 0.8 1 x 10² 1 x 10⁶ Tm-170 3 0.6 1 x 10³ 1 x 10⁶ Tm-171 40 40 1 x 10⁴ 1 x 10⁸ U-230   (fast   lung absorb-tion) a, d Uranium (92) 40 0.1 1 x 10^1b 1 x 10^5b