# The Nuclear Installations (Prescribed Sites and Transport) Regulations 2018, Part 1: Quantities for individual radionuclides Radionuclide Radionuclide form Quantity in Becquerels Actinium Ac-224 2 1015 Ac-225 3 1013 Ac-226 2 1014 Ac-227 4 1011 Ac-228 5 1015 Aluminium Al-26 7 1014 Americium Am-237 4 1016 Am-238 6 1016 Am-239 2 1016 Am-240 4 1016 Am-241 3 1012 Am-242 1 1016 Am-242m 3 1012 Am-243 3 1012 Am-244 2 1016 Am-244m 2 1018 Am-245 2 1016 Am-246 1 1016 Am-246m 2 1016 Antimony Sb-115 2 1016 Sb-116 2 1016 Sb-116m 2 1016 Sb-117 1 1017 Sb-118m 7 1016 Sb-119 1 1017 Sb-120 (long lived isotope) 3 1016 Sb-120 (short lived isotope) 2 1016 Sb-122 2 1016 Sb-124 4 1015 Sb-124m 4 1016 Sb-125 4 1015 Sb-126 1 1016 Sb-126m 2 1016 Sb-127 2 1016 Sb-128 (long lived isotope) 2 1016 Sb-128 (short lived isotope) 1 1016 Sb-129 2 1016 Sb-130 1 1016 Sb-131 2 1016 Argon Ar-37 (gas) 4 1021 Ar-39 (gas) 2 1020 Ar-41 (gas) 4 1017 Arsenic As-69 7 1015 As-70 1 1016 As-71 3 1016 As-72 9 1015 As-73 8 1016 As-74 2 1016 As-76 9 1015 As-77 2 1016 As-78 7 1015 Astatine At-207 4 1016 At-211 2 1015 Barium Ba-126 2 1017 Ba-128 6 1017 Ba-131 6 1016 Ba-131m 3 1016 Ba-133 4 1015 Ba-133m 2 1016 Ba-135m 2 1016 Ba-139 1 1016 Ba-140 2 1016 Ba-141 1 1016 Ba-142 2 1016 Berkelium Bk-245 3 1016 Bk-246 6 1016 Bk-247 3 1012 Bk-249 2 1015 Bk-250 2 1016 Beryllium Be-7 2 1017 Be-10 6 1015 Bismuth Bi-200 2 1016 Bi-201 2 1016 Bi-202 2 1016 Bi-203 4 1016 Bi-205 2 1016 Bi-206 2 1016 Bi-207 1 1015 Bi-210 2 1015 Bi-210m 6 1013 Bi-212 7 1015 Bi-213 7 1015 Bi-214 1 1016 Bromine Br-74 8 1015 Br-74m 6 1015 Br-75 2 1016 Br-76 1 1012 Br-77 4 1017 Br-80 1 1016 Br-80m 5 1016 Br-82 3 1016 Br-83 2 1016 Br-84 7 1015 Cadmium Cd-104 1 1017 Cd-107 4 1016 Cd-109 2 1016 Cd-113 2 1015 Cd-113m 1 1015 Cd-115 1 1016 Cd-115m 2 1016 Cd-117 2 1016 Cd-117m 2 1016 Caesium Cs-125 2 1016 Cs-127 1 1017 Cs-129 2 1017 Cs-130 2 1016 Cs-131 6 1017 Cs-132 9 1016 Cs-134 7 1014 Cs-134m 4 1016 Cs-135 9 1015 Cs-135m 8 1016 Cs-136 8 1015 Cs-137 1 1015 Cs-138 8 1015 Calcium Ca-41 3 1017 Ca-45 3 1016 Ca-47 2 1016 Californium Cf-244 2 1016 Cf-246 5 1014 Cf-248 2 1013 Cf-249 3 1012 Cf-250 7 1012 Cf-251 3 1012 Cf-252 1 1013 Cf-253 2 1014 Cf-254 4 1012 Carbon C-11 2 1016 C-11 (vapour) 1 1018 C-11 (dioxide gas) 1 1018 C-11 (monoxide gas) 1 1018 C-14 3 1016 C-14 (vapour) 4 1017 C-14 (dioxide gas) 3 1019 C-14 (monoxide gas) 1 1020 Cerium Ce-134 1 1017 Ce-135 2 1016 Ce-137 2 1017 Ce-137m 2 1016 Ce-139 2 1016 Ce-141 2 1016 Ce-143 2 1016 Ce-144 3 1015 Chlorine Cl-36 2 1016 Cl-38 6 1015 Cl-39 1 1016 Chromium Cr-48 4 1017 Cr-49 2 1016 Cr-51 3 1017 Cobalt Co-55 2 1016 Co-56 2 1015 Co-57 1 1016 Co-58 6 1015 Co-58m 2 1017 Co-60 6 1014 Co-60m 7 1016 Co-61 2 1016 Co-62m 9 1015 Copper Cu-60 1 1016 Cu-61 2 1016 Cu-64 4 1016 Cu-67 3 1016 Curium Cm-238 5 1016 Cm-240 7 1013 Cm-241 5 1015 Cm-242 4 1013 Cm-243 4 1012 Cm-244 4 1012 Cm-245 2 1012 Cm-246 2 1012 Cm-247 3 1012 Cm-248 7 1013 Cm-249 2 1016 Cm-250 1 1013 Dysprosium Dy-155 1 1017 Dy-157 1 1018 Dy-159 8 1016 Dy-165 2 1016 Dy-166 3 1016 Einsteinium Es-250 1 1017 Es-251 6 1016 Es-253 8 1013 Es-254 2 1013 Es-254m 5 1014 Erbium Er-161 6 1016 Er-165 2 1018 Er-169 3 1016 Er-171 2 1016 Er-172 3 1016 Europium Eu-145 4 1016 Eu-146 3 1016 Eu-147 4 1016 Eu-148 4 1015 Eu-149 8 1016 Eu-150 (long lived isotope) 1 1015 Eu-150 (short lived isotope) 2 1016 Eu-152 1 1015 Eu-152m 2 1016 Eu-154 1 1015 Eu-155 2 1016 Eu-156 2 1016 Eu-157 2 1016 Eu-158 1 1016 Fermium Fm-252 7 1014 Fm-253 6 1014 Fm-254 3 1015 Fm-255 9 1014 Fm-257 3 1013 Fluorine F-18 2 1016 Francium Fr-222 1 1016 Fr-223 2 1016 Gadolinium Gd-145 2 1016 Gd-146 2 1016 Gd-147 5 1016 Gd-148 9 1012 Gd-149 6 1016 Gd-151 5 1016 Gd-152 1 1013 Gd-153 2 1016 Gd-159 2 1016 Gallium Ga-65 1 1016 Ga-66 9 1015 Ga-67 5 1016 Ga-68 2 1016 Ga-70 1 1016 Ga-72 2 1016 Ga-73 2 1016 Germanium Ge-66 3 1016 Ge-67 7 1015 Ge-68 1 1016 Ge-69 2 1016 Ge-71 7 1018 Ge-75 2 1016 Ge-77 1 1016 Ge-78 2 1016 Gold Au-193 7 1016 Au-194 1 1017 Au-195 3 1016 Au-198 2 1016 Au-198m 2 1016 Au-199 3 1016 Au-200 1 1016 Au-200m 2 1016 Au-201 2 1016 Hafnium Hf-170 4 1016 Hf-172 5 1015 Hf-173 6 1016 Hf-175 2 1016 Hf-177m 2 1016 Hf-178m 4 1014 Hf-179m 2 1016 Hf-180m 2 1016 Hf-181 1 1016 Hf-182 7 1014 Hf-182m 2 1016 Hf-183 2 1016 Hf-184 2 1016 Holmium Ho-155 2 1016 Ho-157 4 1016 Ho-159 6 1016 Ho-161 1 1017 Ho-162 5 1016 Ho-162m 4 1016 Ho-164 2 1016 Ho-164m 4 1016 Ho-166 1 1016 Ho-166m 8 1014 Ho-167 2 1016 Hydrogen H-3 (tritiated water) 7 1017 H-3 (organically bound tritium) 1 1018 H-3 (tritiated water vapour) 1 1019 H-3 (gas) 1 1022 H-3 (tritiated methane gas) 1 1021 H-3 (organically bound tritium gas/vapour) 6 1018 Indium In-109 7 1016 In-110 (long lived isotope) 2 1017 In-110 (short lived isotope) 1 1016 In-111 9 1016 In-112 2 1016 In-113m 5 1016 In-114 1 1016 In-114m 9 1015 In-115 6 1014 In-115m 3 1016 In-116m 2 1016 In-117 2 1016 In-117m 2 1016 In-119m 9 1015 Iodine I-120 6 1015 I-120 2 1017 I-120 2 1017 I-120m 7 1015 I-120m 2 1017 I-120m 2 1017 I-121 4 1016 I-121 1 1018 I-121 1 1018 I-123 9 1016 I-123 5 1017 I-123 6 1017 I-124 2 1016 I-124 9 1015 I-124 1 1016 I-125 1 1015 I-125 1 1016 I-125 1 1016 I-126 8 1015 I-126 5 1015 I-126 6 1011 I-128 1 1016 I-128 2 1018 I-128 5 1018 I-129 1 1014 I-129 2 1015 I-129 2 1015 I-130 3 1016 I-130 5 1016 I-130 6 1016 I-131 9 1014 I-131 6 1015 I-131 7 1015 I-132 2 1016 I-132 2 1017 I-132 3 1017 I-132m 2 1016 I-132m 4 1017 I-132m 5 1017 I-133 2 1016 I-133 2 1016 I-133 3 1016 I-134 2 1016 I-134 3 1017 I-134 4 1017 I-135 2 1016 I-135 9 1016 I-135 1 1017 Iridium Ir-182 1 1016 Ir-184 2 1016 Ir-185 3 1016 Ir-186 3 1016 Ir-186 2 1016 Ir-187 6 1016 Ir-188 5 1016 Ir-189 9 1016 Ir-190 2 1016 Ir-190m 3 1016 Ir-190m 1 1017 Ir-192 6 1015 Ir-192m 4 1015 Ir-193m 4 1016 Ir-194 1 1016 Ir-194m 1 1015 Ir-195 2 1016 Ir-195m 2 1016 Iron Fe-52 2 1016 Fe-55 8 1016 Fe-59 8 1015 Fe-60 4 1014 Krypton Kr-74 (gas) 5 1017 Kr-76 (gas) 1 1018 Kr-77 (gas) 6 1017 Kr-79 (gas) 2 1018 Kr-81 (gas) 7 1015 Kr-81m (gas) 5 1018 Kr-83m (gas) 3 1020 Kr-85 (gas) 1 1020 Kr-85m (gas) 4 1018 Kr-87 (gas) 7 1017 Kr-88 (gas) 3 1017 Lanthanum La-131 2 1016 La-132 2 1016 La-135 2 1018 La-137 2 1016 La-138 2 1015 La-140 2 1016 La-141 1 1016 La-142 1 1016 La-143 7 1015 Lead Pb-195m 2 1016 Pb-198 4 1016 Pb-199 6 1016 Pb-200 3 1016 Pb-201 8 1016 Pb-202 6 1015 Pb-202m 4 1016 Pb-203 9 1016 Pb-205 1 1017 Pb-209 2 1016 Pb-210 3 1013 Pb-211 2 1016 Pb-212 1 1015 Pb-214 1 1016 Lutetium Lu-169 6 1016 Lu-170 3 1016 Lu-171 4 1016 Lu-172 3 1016 Lu-173 2 1016 Lu-174 1 1016 Lu-174m 3 1016 Lu-176 3 1015 Lu-176m 2 1016 Lu-177 3 1016 Lu-177m 3 1015 Lu-178 1 1016 Lu-178m 1 1016 Lu-179 2 1016 Magnesium Mg-28 5 1016 Manganese Mn-51 1 1016 Mn-52 2 1016 Mn-52m 8 1015 Mn-53 1 1018 Mn-54 3 1015 Mn-56 1 1016 Mendelevium Md-257 9 1015 Md-258 4 1013 Mercury Hg-193 (organic) 3 1016 Hg-193 (inorganic) 3 1016 Hg-193 (vapour) 2 1017 Hg-193m (organic) 2 1016 Hg-193m (inorganic) 2 1016 Hg-193m (vapour) 6 1016 Hg-194 (organic) 3 1015 Hg-194 (inorganic) 1 1016 Hg-194 (vapour) 6 1015 Hg-195 (organic) 5 1016 Hg-195 (inorganic) 5 1016 Hg-195 (vapour) 1 1017 Hg-195m (organic) 3 1016 Hg-195m (inorganic) 3 1016 Hg-195m (vapour) 3 1016 Hg-197 (organic) 7 1016 Hg-197 (inorganic) 7 1016 Hg-197 (vapour) 5 1016 Hg-197m (organic) 2 1016 Hg-197m (inorganic) 2 1016 Hg-197m (vapour) 4 1016 Hg-199m (organic) 2 1016 Hg-199m (inorganic) 2 1016 Hg-199m (vapour) 1 1018 Hg-203 (organic) 3 1016 Hg-203 (inorganic) 3 1016 Hg-203 (vapour) 3 1016 Molybdenum Mo-90 2 1016 Mo-93 2 1016 Mo-93m 4 1016 Mo-99 2 1016 Mo-101 2 1016 Neodymium Nd-136 4 1016 Nd-138 5 1017 Nd-139 2 1016 Nd-139m 3 1016 Nd-141 2 1017 Nd-147 2 1016 Nd-149 2 1016 Nd-151 1 1016 Neon Ne-19 (gas) 6 1017 Neptunium Np-232 3 1016 Np-233 2 1018 Np-234 5 1016 Np-235 2 1017 Np-236 (long lived isotope) 3 1013 Np-236 (short lived isotope) 3 1016 Np-237 5 1012 Np-238 2 1016 Np-239 1 1016 Np-240 7 1015 Nickel Ni-56 4 1012 Ni-56 (carbonyl vapour) 1 1017 Ni-57 2 1016 Ni-57 (carbonyl vapour) 2 1017 Ni-59 4 1017 Ni-59 (carbonyl vapour) 2 1017 Ni-63 1 1017 Ni-63 (carbonyl vapour) 1 1017 Ni-65 1 1016 Ni-65 (carbonyl vapour) 4 1017 Ni-66 5 1016 Ni-66 (carbonyl vapour) 1 1017 Niobium Nb-88 7 1015 Nb-89 (long lived isotope) 1 1016 Nb-89 (short lived isotope) 8 1015 Nb-90 2 1016 Nb-93m 1 1017 Nb-94 1 1015 Nb-95 2 1016 Nb-95m 2 1016 Nb-96 2 1016 Nb-97 2 1016 Nb-98 1 1016 Nitrogen N-13 (gas) 6 1017 Osmium Os-180 1 1017 Os-181 3 1016 Os-182 6 1016 Os-185 7 1015 Os-189m 1 1017 Os-191 4 1016 Os-191m 7 1016 Os-193 2 1016 Os-194 2 1015 Palladium Pd-100 7 1016 Pd-101 8 1016 Pd-103 4 1017 Pd-107 3 1017 Pd-109 2 1016 Phosphorus P-32 1 1015 P-33 3 1016 Platinum Pt-186 9 1017 Pt-188 6 1016 Pt-189 6 1016 Pt-191 7 1016 Pt-193 1 1018 Pt-193m 3 1016 Pt-195m 3 1016 Pt-197 2 1016 Pt-197m 2 1016 Pt-199 2 1016 Pt-200 2 1016 Plutonium Pu-234 1 1016 Pu-235 2 1017 Pu-236 6 1012 Pu-237 1 1017 Pu-238 2 1012 Pu-239 2 1012 Pu-240 2 1012 Pu-241 1 1014 Pu-242 2 1012 Pu-243 2 1016 Pu-244 2 1012 Pu-245 2 1016 Pu-246 2 1016 Polonium Po-203 3 1016 Po-205 7 1016 Po-206 1 1015 Po-207 8 1016 Po-208 2 1013 Po-209 2 1013 Po-210 4 1013 Potassium K-40 2 1016 K-42 7 1015 K-43 2 1016 K-44 6 1015 K-45 9 1015 Praseodymium Pr-136 1 1016 Pr-137 2 1016 Pr-138m 2 1016 Pr-139 7 1016 Pr-142 1 1012 Pr-142m 2 1019 Pr-143 2 1016 Pr-144 2 1016 Pr-145 1 1016 Pr-147 1 1016 Promethium Pm-141 1 1012 Pm-143 9 1015 Pm-144 2 1015 Pm-145 3 1016 Pm-146 2 1015 Pm-147 4 1016 Pm-148 1 1016 Pm-148m 5 1015 Pm-149 2 1016 Pm-150 1 1012 Pm-151 2 1016 Protactinium Pa-227 3 1015 Pa-228 3 1015 Pa-230 3 1014 Pa-231 2 1012 Pa-232 2 1016 Pa-233 2 1016 Pa-234 5 1015 Radium Ra-223 3 1013 Ra-224 7 1013 Ra-225 3 1013 Ra-226 2 1013 Ra-227 2 1016 Ra-228 1 1013 Rhenium Re-177 2 1016 Re-178 2 1016 Re-181 3 1016 Re-182 (long lived isotope) 2 1016 Re-182 (short lived isotope) 4 1016 Re-184 1 1016 Re-184m 7 1015 Re-186 2 1016 Re-186m 1 1016 Re-187 5 1018 Re-188 1 1016 Re-188m 3 1016 Re-189 2 1016 Rhodium Rh-99 4 1016 Rh-99m 9 1016 Rh-100 4 1016 Rh-101 7 1015 Rh-101m 2 1017 Rh-102 1 1015 Rh-102m 6 1015 Rh-103m 3 1019 Rh-105 2 1016 Rh-106m 2 1016 Rh-107 2 1016 Rubidium Rb-79 1 1016 Rb-81 2 1016 Rb-81m 4 1016 Rb-82m 3 1016 Rb-83 1 1016 Rb-84 1 1016 Rb-86 2 1015 Rb-87 4 1016 Rb-88 5 1015 Rb-89 9 1015 Ruthenium Ru-94 1 1018 Ru-94 (tetroxide vapour) 1 1018 Ru-97 3 1017 Ru-97 (tetroxide vapour) 1 1018 Ru-103 2 1016 Ru-103 (tetroxide vapour) 1 1017 Ru-105 2 1016 Ru-105 (tetroxide vapour) 6 1017 Ru-106 3 1015 Ru-106 (tetroxide vapour) 8 1015 Samarium Sm-141 1 1016 Sm-141m 2 1016 Sm-142 9 1016 Sm-145 3 1016 Sm-146 2 1013 Sm-147 3 1013 Sm-151 6 1016 Sm-153 2 1016 Sm-155 2 1016 Sm-156 2 1016 Scandium Sc-43 2 1016 Sc-44 2 1016 Sc-44m 9 1016 Sc-46 3 1015 Sc-47 3 1016 Sc-48 2 1016 Sc-49 1 1016 Selenium Se-70 2 1016 Se-73 2 1016 Se-73m 2 1016 Se-75 2 1015 Se-79 5 1014 Se-81 2 1016 Se-81m 4 1016 Se-83 2 1016 Silicon Si-31 2 1016 Si-32 2 1015 Silver Ag-102 1 1016 Ag-103 2 1016 Ag-104 3 1016 Ag-104m 2 1016 Ag-105 2 1016 Ag-106 2 1016 Ag-106m 2 1016 Ag-108m 1 1015 Ag-110m 3 1014 Ag-111 2 1016 Ag-112 7 1015 Ag-115 9 1015 Sodium Na-22 1 1015 Na-24 2 1016 Strontium Sr-80 1 1018 Sr-81 9 1015 Sr-82 2 1016 Sr-83 3 1016 Sr-85 1 1016 Sr-85m 3 1017 Sr-87m 7 1016 Sr-89 1 1016 Sr-90 8 1014 Sr-91 2 1016 Sr-92 2 1016 Sulphur S-35 (inorganic) 1 1016 S-35 (organic) 2 1015 S-35 (carbon disulphide vapour) 2 1017 S-35 (vapour) 2 1018 S-35 (dioxide gas) 1 1018 Tantalum Ta-172 2 1016 Ta-173 2 1016 Ta-174 2 1016 Ta-175 2 1016 Ta-176 3 1016 Ta-177 1 1017 Ta-178 (long lived isotope) 3 1016 Ta-179 6 1016 Ta-180 9 1015 Ta-180m 6 1016 Ta-182 3 1015 Ta-182m 2 1016 Ta-183 2 1016 Ta-184 2 1016 Ta-185 1 1016 Ta-186 9 1015 Technetium Tc-93 5 1017 Tc-93m 4 1016 Tc-94 6 1016 Tc-94m 1 1016 Tc-95 4 1017 Tc-95m 1 1016 Tc-96 4 1016 Tc-96m 2 1017 Tc-97 9 1016 Tc-97m 5 1016 Tc-98 1 1015 Tc-99 5 1014 Tc-99m 1 1017 Tc-101 2 1016 Tc-104 6 1015 Tellurium Te-116 6 1016 Te-116 (vapour) 2 1018 Te-121 4 1016 Te-121 (vapour) 3 1017 Te-121m 1 1016 Te-121m (vapour) 3 1016 Te-123 6 1016 Te-123 (vapour) 2 1016 Te-123m 2 1016 Te-123m (vapour) 5 1016 Te-125m 2 1016 Te-125m (vapour) 8 1016 Te-127 2 1016 Te-127 (vapour) 2 1018 Te-127m 1 1016 Te-127m (vapour) 2 1016 Te-129 2 1016 Te-129 (vapour) 4 1018 Te-129m 1 1016 Te-129m (vapour) 3 1016 Te-131 1 1016 Te-131 (vapour) 1 1018 Te-131m 2 1016 Te-131m (vapour) 5 1016 Te-132 3 1016 Te-132 (vapour) 2 1016 Te-133 1 1016 Te-133 (vapour) 7 1017 Te-133m 1 1016 Te-133m (vapour) 2 1017 Te-134 3 1016 Te-134 (vapour) 7 1017 Terbium Tb-147 2 1016 Tb-149 2 1016 Tb-150 2 1016 Tb-151 4 1016 Tb-153 7 1016 Tb-154 4 1016 Tb-155 1 1017 Tb-156 3 1016 Tb-156m (long lived isotope) 1 1017 Tb-156m (short lived isotope) 4 1016 Tb-157 1 1017 Tb-158 2 1015 Tb-160 5 1015 Tb-161 2 1016 Thallium Tl-194 1 1017 Tl-194m 2 1016 Tl-195 4 1016 Tl-197 5 1016 Tl-198 7 1016 Tl-198m 2 1016 Tl-199 6 1016 Tl-200 1 1017 Tl-201 7 1016 Tl-202 7 1016 Tl-204 2 1016 Thorium Th-226 4 1015 Th-227 2 1013 Th-228 6 1012 Th-229 1 1012 Th-230 2 1012 Th-231 2 1016 Th-232 2 1012 Th-234 3 1016 Thulium Tm-162 2 1016 Tm-166 3 1016 Tm-167 4 1016 Tm-170 2 1016 Tm-171 1 1017 Tm-172 2 1016 Tm-173 2 1016 Tm-175 2 1016 Tin Sn-110 6 1017 Sn-111 2 1016 Sn-113 5 1016 Sn-117m 3 1016 Sn-119m 5 1016 Sn-121 3 1016 Sn-121m 4 1016 Sn-123 2 1016 Sn-123m 2 1016 Sn-125 1 1016 Sn-126 5 1015 Sn-127 2 1016 Sn-128 2 1016 Titanium Ti-44 2 1015 Ti-45 2 1016 Tungsten W-176 5 1016 W-177 3 1016 W-178 6 1017 W-179 1 1017 W-181 1 1017 W-185 4 1016 W-187 2 1016 W-188 3 1016 Uranium U-230 2 1013 U-231 7 1016 U-232 6 1012 U-233 3 1013 U-234 3 1013 U-235 3 1013 U-236 3 1013 U-237 2 1016 U-238 3 1013 U-239 2 1016 U-240 2 1016 Vanadium V-47 1 1016 V-48 1 1016 V-49 2 1018 Xenon Xe-120 (gas) 1 1018 Xe-121 (gas) 3 1017 Xe-122 (gas) 1 1019 Xe-123 (gas) 9 1017 Xe-125 (gas) 2 1018 Xe-127 (gas) 2 1018 Xe-129m (gas) 2 1019 Xe-131m (gas) 4 1019 Xe-133 (gas) 1 1019 Xe-133m (gas) 2 1019 Xe-135 (gas) 2 1018 Xe-135m (gas) 1 1018 Xe-138 (gas) 5 1017 Ytterbium Yb-162 1 1017 Yb-166 8 1016 Yb-167 4 1016 Yb-169 3 1016 Yb-175 4 1016 Yb-177 2 1016 Yb-178 2 1016 Yttrium Y-86 2 1016 Y-86m 1 1017 Y-87 2 1017 Y-88 2 1015 Y-90 2 1016 Y-90m 7 1016 Y-91 2 1016 Y-91m 2 1017 Y-92 6 1015 Y-93 8 1015 Y-94 6 1015 Y-95 6 1015 Zinc Zn-62 1 1017 Zn-63 1 1016 Zn-65 5 1014 Zn-69 2 1016 Zn-69m 2 1017 Zn-71m 2 1016 Zn-72 3 1016 Zirconium Zr-86 2 1017 Zr-88 1 1016 Zr-89 4 1016 Zr-93 8 1015 Zr-95 8 1015 Zr-97 2 1016 Other radionuclides not listed above 4 1011 --- Source: https://www.legislation.gov.uk/uksi/2018/42/schedule/2/part/1 (the official version) Page: https://openlegislation.uk/nuclear-installations-prescribed-sites-and-transport-regulations-2018/schedule-2/part-1 Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.