298 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 U-230    (med-ium lung    ab-sorbtion) a, e 40 0.004 1 x 10¹ 1 x 10⁴ U-230  (slow  lung absorb-tion) a, f 30 0.003 1 x 10¹ 1 x 10⁴ U-232   (fast   lung absorb-tion) d 40 0.01 1 x 10^0b 1 x 10^3b U-232 (med-ium lung ab-sorbtion)^e 40 0.007 1 x 10¹ 1 x 10⁴ U-232 (slow lung absorb-tion)^f 10 0.001 1 x 10¹ 1 x 10⁴ U-233 (fast lung absorb-tion) d 40 0.09 1 x 10¹ 1 x 10⁴ U-233 (med-ium lung ab-sorbtion)^e 40 0.02 1 x 10² 1 x 10⁵ U-233 (slow lung absorb-tion)^f 40 0.006 1 x 10¹ 1 x 10⁵ U-234 (fast lung absorb-tion) d 40 0.09 1 x 10¹ 1 x 10⁴ U-234 (med-ium lung ab-sorbtion)^e, f 40 0.02 1 x 10² 1 x 10⁵ U-234 (slow lung absorb-tion)^f 40 0.006 1 x 10¹ 1 x 10⁵ U-235 (all lung absorbtion types) a, d, e, f Unlimited Unlimited 1 x 10^1b 1 x 10^4b U-236 (fast lung absorb-tion) d Unlimited Unlimited 1 x 10¹ 1 x 10⁴ U-236 (med-ium lung ab-sorbtion)^e 40 0.02 1 x 10² 1 x 10⁵ U-236 (slow lung absorb-tion)^f 40 0.006 1 x 10¹ 1 x 10⁴ U-238(all lung absorbtion types)^d, e, f Unlimited Unlimited 1 x 10^1b 1 x 10^4b U (natural) Unlimited Unlimited 1 x 10^0b 1 x 10^3b U (enriched 20% or less)^g Unlimited Unlimited 1 x 10⁰ 1 x 10³ U (depleted) Unlimited Unlimited 1 x 10⁰ 1 x 10³ V-48 Vanadium (23) 0.4 0.4 1 x 10¹ 1 x 10⁵ V-49 40 40 1 x 10⁴ 1 x 10⁷ W-178 Tungsten (74) 9 5 1 x 10¹ 1 x 10⁶ W-181 30 30 1 x 10³ 1 x 10⁷ W-185 40 0.8 1 x 10⁴ 1 x 10⁷ W-187 2 0.6 1 x 10² 1 x 10⁶ W-188^a 0.4 0.3 1 x 10² 1 x 10⁵ Xe-122 a Xenon (54) 0.4 0.4 1 x 10² 1 x 10⁹