R313-19-70. Exempt Concentrations of Radioactive Materials

Refer to Subsection R313-19-13(2)(a) TABLE Column I Concentration Column II Element Material Concentration (Atomic Normally Used Liquid (uCi/ml) Number) Radionuclide As Gas (uCi/ml) Solid (uCi/g) Antimony (51) Sb-122 3 E-4 Sb-124 2 E-4 Sb-125 1 E-3 Argon (18) Ar-37 1 E-3 Ar-41 4 E-7 Arsenic (33) As-73 5 E-3 As-74 5 E-4 As-76 2 E-4 As-77 8 E-4 Barium (56) Ba-131 2 E-3 Ba-140 3 E-4 Beryllium (4) Be-7 2 E-2 Bismuth (83) Bi-206 4 E-4 Bromine (35) Br-82 4 E-7 3 E-3 Cadmium (48) Cd-109 2 E-3 Cd-115m 3 E-4 Cd-115 3 E-4 Calcium (20) Ca-45 9 E-5 Ca-47 5 E-4 Carbon (6) C-14 1 E-6 8 E-3 Cerium (58) Ce-141 9 E-4 Ce-143 4 E-4 Ce-144 1 E-4 Cesium (55) Cs-131 2 E-2 Cs-134m 6 E-2 Cs-134 9 E-5 Chlorine (17) Cl-38 9 E-7 4 E-3 Chromium (24) Cr-51 2 E-2 Cobalt (27) Co-57 5 E-3 Co-58 1 E-3 Co-60 5 E-4 Copper (29) Cu-64 3 E-3 Dysprosium (66) Dy-165 4 E-3 Dy-166 4 E-4 Erbium (68) Er-169 9 E-4 Er-171 1 E-3 Europium (63) Eu-152 6 E-4 (T = 9.2 h) Eu-155 2 E-3 Fluorine (9) F-18 2 E-6 8 E-3 Gadolinium (64) Gd-153 2 E-3 Gd-159 8 E-4 Gallium (31) Ga-72 4 E-4 Germanium (32) Ge-71 2 E-2 Gold (79) Au-196 2 E-3 Au-198 5 E-4 Au-199 2 E-3 Hafnium (72) Hf-181 7 E-4 Hydrogen (1) H-3 5 E-6 3 E-2 Indium (49) In-113m 1 E-2 In-114m 2 E-4 Iodine (53) I-126 3 E-9 2 E-5 I-131 3 E-9 2 E-5 I-132 8 E-8 6 E-4 I-133 1 E-8 7 E-5 I-134 2 E-7 1 E-3 Iridium (77) Ir-190 2 E-3 Ir-192 4 E-4 Ir-194 3 E-4 Iron (26) Fe-55 8 E-3 Fe-59 6 E-4 Krypton (36) Kr-85m 1 E-6 Kr-85 3 E-6 Lanthanum (57) La-140 2 E-4 Lead (82) Pb-203 4 E-3 Lutetium (71) Lu-177 1 E-3 Manganese (25) Mn-52 3 E-4 Mn-54 1 E-3 Mn-56 1 E-3 Mercury (80) Hg-197m 2 E-3 Hg-197 3 E-3 Hg-203 2 E-4 Molybdenum (42) Mo-99 2 E-3 Neodymium (60) Nd-147 6 E-4 Nd-149 3 E-3 Nickel (28) Ni-65 1 E-3 Niobium Nb-95 1 E-3 (Columbium)(41) Nb-97 9 E-3 Osmium (76) Os-185 7 E-4 Os-191m 3 E-2 Os-191 2 E-3 Os-193 6 E-4 Palladium (46) Pd-103 3 E-3 Pd-109 9 E-4 Phosphorus (15) P-32 2 E-4 Platinum (78) Pt-191 1 E-3 Pt-193m 1 E-2 Pt-197m 1 E-2 Pt-197 1 E-3 Potassium (19) K-42 3 E-3 Praseodymium (59) Pr-142 3 E-4 Pr-143 5 E-4 Promethium (61) Pm-147 2 E-3 Pm-149 4 E-3 Rhenium (75) Re-183 6 E-4 Re-186 9 E-3 Re-188 6 E-4 Rhodium (45) Rh-103m 1 E-1 Rh-105 1 E-3 Rubidium (37) Rb-86 7 E-4 Ruthenium (44) Ru-97 4 E-4 Ru-103 8 E-4 Ru-105 1 E-3 Ru-106 1 E-4 Samarium (62) Sm-153 8 E-4 Scandium (21) Sc-46 4 E-4 Sc-47 9 E-4 Sc-48 3 E-4 Selenium (34) Se-75 3 E-3 Silicon (14) Si-31 9 E-3 Silver (47) Ag-105 1 E-3 Ag-110m 3 E-4 Ag-111 4 E-4 Sodium (11) Na-24 2 E-3 Strontium (38) Sr-85 1 E-4 Sr-89 1 E-4 Sr-91 7 E-4 Sr-92 7 E-4 Sulfur (16) S-35 9 E-8 6 E-4 Tantalum (73) Ta-182 4 E-4 Technetium (43) Tc-96m 1 E-1 Tc-96 1 E-3 Tellurium (52) Te-125m 2 E-3 Te-127m 6 E-4 Te-127 3 E-3 Te-129m 3 E-4 Te-131m 6 E-4 Te-132 3 E-4 Terbium (65) Tb-160 4 E-4 Thallium (81) Tl-200 4 E-3 Tl-201 3 E-3 Tl-202 1 E-3 Tl-204 1 E-3 Thulium (69) Tm-170 5 E-4 Tm-171 5 E-3 Tin (50) Sn-113 9 E-4 Sn-125 2 E-4 Tungsten W-181 4 E-3 (Wolfram)(74) W-187 7 E-4 Vanadium (23) V-48 3 E-4 Xenon (54) Xe-131m 4 E-6 Xe-133 3 E-6 Xe-135 1 E-6 Ytterbium (70) Yb-175 1 E-3 Yttrium (39) Y-90 2 E-4 Y-91m 3 E-2 Y-91 3 E-4 Y-92 6 E-4 Y-93 3 E-4 Zinc (30) Zn-65 1 E-3 Zn-69m 7 E-4 Zn-69 2 E-2 Zirconium (40) Zr-95 6 E-4 Zr-97 2 E-4 Beta or gamma emitting radioactive material not listed above with half-life less than 3 years 1 E-10 1 E-6 (1) In expressing the concentrations in Section R313-19-70, the activity stated is that of the parent radionuclide and takes into account the radioactive decay products, because many radionuclides disintegrate into radionuclides which are also radioactive. (2) For purposes of Subsection R313-19-13(2)(a) where there is involved a combination of radionuclides, the limit for the combination should be derived as follows: Determine for each radionuclide in the product the ratio between the radioactivity concentration present in the product and the exempt radioactivity concentration established in Section R313-19-70 for the specific radionuclide when not in combination. The sum of the ratios may not exceed one or unity. (3) To convert microcuries (uCi) to SI units of kilobecquerels (kBq), multiply the above values by 37.