{
  "url": "https://openlegislation.uk/nuclear-installations-prescribed-sites-and-transport-regulations-2018/schedule-2/part-1",
  "json_url": "https://openlegislation.uk/nuclear-installations-prescribed-sites-and-transport-regulations-2018/schedule-2/part-1.json",
  "legislation": "uksi/2018/42",
  "legislation_title": "The Nuclear Installations (Prescribed Sites and Transport) Regulations 2018",
  "legislation_url": "https://openlegislation.uk/nuclear-installations-prescribed-sites-and-transport-regulations-2018",
  "path": "schedule/2/part/1",
  "kind": "part",
  "number": "1",
  "heading": "Quantities for individual radionuclides",
  "text": "Radionuclide\nRadionuclide form\nQuantity in Becquerels\nActinium\nAc-224\n2 1015\nAc-225\n3 1013\nAc-226\n2 1014\nAc-227\n4 1011\nAc-228\n5 1015\nAluminium\nAl-26\n7 1014\nAmericium\nAm-237\n4 1016\nAm-238\n6 1016\nAm-239\n2 1016\nAm-240\n4 1016\nAm-241\n3 1012\nAm-242\n1 1016\nAm-242m\n3 1012\nAm-243\n3 1012\nAm-244\n2 1016\nAm-244m\n2 1018\nAm-245\n2 1016\nAm-246\n1 1016\nAm-246m\n2 1016\nAntimony\nSb-115\n2 1016\nSb-116\n2 1016\nSb-116m\n2 1016\nSb-117\n1 1017\nSb-118m\n7 1016\nSb-119\n1 1017\nSb-120\n(long lived isotope)\n3 1016\nSb-120\n(short lived isotope)\n2 1016\nSb-122\n2 1016\nSb-124\n4 1015\nSb-124m\n4 1016\nSb-125\n4 1015\nSb-126\n1 1016\nSb-126m\n2 1016\nSb-127\n2 1016\nSb-128\n(long lived isotope)\n2 1016\nSb-128\n(short lived isotope)\n1 1016\nSb-129\n2 1016\nSb-130\n1 1016\nSb-131\n2 1016\nArgon\nAr-37\n(gas)\n4 1021\nAr-39\n(gas)\n2 1020\nAr-41\n(gas)\n4 1017\nArsenic\nAs-69\n7 1015\nAs-70\n1 1016\nAs-71\n3 1016\nAs-72\n9 1015\nAs-73\n8 1016\nAs-74\n2 1016\nAs-76\n9 1015\nAs-77\n2 1016\nAs-78\n7 1015\nAstatine\nAt-207\n4 1016\nAt-211\n2 1015\nBarium\nBa-126\n2 1017\nBa-128\n6 1017\nBa-131\n6 1016\nBa-131m\n3 1016\nBa-133\n4 1015\nBa-133m\n2 1016\nBa-135m\n2 1016\nBa-139\n1 1016\nBa-140\n2 1016\nBa-141\n1 1016\nBa-142\n2 1016\nBerkelium\nBk-245\n3 1016\nBk-246\n6 1016\nBk-247\n3 1012\nBk-249\n2 1015\nBk-250\n2 1016\nBeryllium\nBe-7\n2 1017\nBe-10\n6 1015\nBismuth\nBi-200\n2 1016\nBi-201\n2 1016\nBi-202\n2 1016\nBi-203\n4 1016\nBi-205\n2 1016\nBi-206\n2 1016\nBi-207\n1 1015\nBi-210\n2 1015\nBi-210m\n6 1013\nBi-212\n7 1015\nBi-213\n7 1015\nBi-214\n1 1016\nBromine\nBr-74\n8 1015\nBr-74m\n6 1015\nBr-75\n2 1016\nBr-76\n1 1012\nBr-77\n4 1017\nBr-80\n1 1016\nBr-80m\n5 1016\nBr-82\n3 1016\nBr-83\n2 1016\nBr-84\n7 1015\nCadmium\nCd-104\n1 1017\nCd-107\n4 1016\nCd-109\n2 1016\nCd-113\n2 1015\nCd-113m\n1 1015\nCd-115\n1 1016\nCd-115m\n2 1016\nCd-117\n2 1016\nCd-117m\n2 1016\nCaesium\nCs-125\n2 1016\nCs-127\n1 1017\nCs-129\n2 1017\nCs-130\n2 1016\nCs-131\n6 1017\nCs-132\n9 1016\nCs-134\n7 1014\nCs-134m\n4 1016\nCs-135\n9 1015\nCs-135m\n8 1016\nCs-136\n8 1015\nCs-137\n1 1015\nCs-138\n8 1015\nCalcium\nCa-41\n3 1017\nCa-45\n3 1016\nCa-47\n2 1016\nCalifornium\nCf-244\n2 1016\nCf-246\n5 1014\nCf-248\n2 1013\nCf-249\n3 1012\nCf-250\n7 1012\nCf-251\n3 1012\nCf-252\n1 1013\nCf-253\n2 1014\nCf-254\n4 1012\nCarbon\nC-11\n2 1016\nC-11\n(vapour)\n1 1018\nC-11\n(dioxide gas)\n1 1018\nC-11\n(monoxide gas)\n1 1018\nC-14\n3 1016\nC-14\n(vapour)\n4 1017\nC-14\n(dioxide gas)\n3 1019\nC-14\n(monoxide gas)\n1 1020\nCerium\nCe-134\n1 1017\nCe-135\n2 1016\nCe-137\n2 1017\nCe-137m\n2 1016\nCe-139\n2 1016\nCe-141\n2 1016\nCe-143\n2 1016\nCe-144\n3 1015\nChlorine\nCl-36\n2 1016\nCl-38\n6 1015\nCl-39\n1 1016\nChromium\nCr-48\n4 1017\nCr-49\n2 1016\nCr-51\n3 1017\nCobalt\nCo-55\n2 1016\nCo-56\n2 1015\nCo-57\n1 1016\nCo-58\n6 1015\nCo-58m\n2 1017\nCo-60\n6 1014\nCo-60m\n7 1016\nCo-61\n2 1016\nCo-62m\n9 1015\nCopper\nCu-60\n1 1016\nCu-61\n2 1016\nCu-64\n4 1016\nCu-67\n3 1016\nCurium\nCm-238\n5 1016\nCm-240\n7 1013\nCm-241\n5 1015\nCm-242\n4 1013\nCm-243\n4 1012\nCm-244\n4 1012\nCm-245\n2 1012\nCm-246\n2 1012\nCm-247\n3 1012\nCm-248\n7 1013\nCm-249\n2 1016\nCm-250\n1 1013\nDysprosium\nDy-155\n1 1017\nDy-157\n1 1018\nDy-159\n8 1016\nDy-165\n2 1016\nDy-166\n3 1016\nEinsteinium\nEs-250\n1 1017\nEs-251\n6 1016\nEs-253\n8 1013\nEs-254\n2 1013\nEs-254m\n5 1014\nErbium\nEr-161\n6 1016\nEr-165\n2 1018\nEr-169\n3 1016\nEr-171\n2 1016\nEr-172\n3 1016\nEuropium\nEu-145\n4 1016\nEu-146\n3 1016\nEu-147\n4 1016\nEu-148\n4 1015\nEu-149\n8 1016\nEu-150\n(long lived isotope)\n1 1015\nEu-150\n(short lived isotope)\n2 1016\nEu-152\n1 1015\nEu-152m\n2 1016\nEu-154\n1 1015\nEu-155\n2 1016\nEu-156\n2 1016\nEu-157\n2 1016\nEu-158\n1 1016\nFermium\nFm-252\n7 1014\nFm-253\n6 1014\nFm-254\n3 1015\nFm-255\n9 1014\nFm-257\n3 1013\nFluorine\nF-18\n2 1016\nFrancium\nFr-222\n1 1016\nFr-223\n2 1016\nGadolinium\nGd-145\n2 1016\nGd-146\n2 1016\nGd-147\n5 1016\nGd-148\n9 1012\nGd-149\n6 1016\nGd-151\n5 1016\nGd-152\n1 1013\nGd-153\n2 1016\nGd-159\n2 1016\nGallium\nGa-65\n1 1016\nGa-66\n9 1015\nGa-67\n5 1016\nGa-68\n2 1016\nGa-70\n1 1016\nGa-72\n2 1016\nGa-73\n2 1016\nGermanium\nGe-66\n3 1016\nGe-67\n7 1015\nGe-68\n1 1016\nGe-69\n2 1016\nGe-71\n7 1018\nGe-75\n2 1016\nGe-77\n1 1016\nGe-78\n2 1016\nGold\nAu-193\n7 1016\nAu-194\n1 1017\nAu-195\n3 1016\nAu-198\n2 1016\nAu-198m\n2 1016\nAu-199\n3 1016\nAu-200\n1 1016\nAu-200m\n2 1016\nAu-201\n2 1016\nHafnium\nHf-170\n4 1016\nHf-172\n5 1015\nHf-173\n6 1016\nHf-175\n2 1016\nHf-177m\n2 1016\nHf-178m\n4 1014\nHf-179m\n2 1016\nHf-180m\n2 1016\nHf-181\n1 1016\nHf-182\n7 1014\nHf-182m\n2 1016\nHf-183\n2 1016\nHf-184\n2 1016\nHolmium\nHo-155\n2 1016\nHo-157\n4 1016\nHo-159\n6 1016\nHo-161\n1 1017\nHo-162\n5 1016\nHo-162m\n4 1016\nHo-164\n2 1016\nHo-164m\n4 1016\nHo-166\n1 1016\nHo-166m\n8 1014\nHo-167\n2 1016\nHydrogen\nH-3\n(tritiated water)\n7 1017\nH-3\n(organically bound tritium)\n1 1018\nH-3\n(tritiated water vapour)\n1 1019\nH-3\n(gas)\n1 1022\nH-3\n(tritiated methane gas)\n1 1021\nH-3\n(organically bound tritium gas/vapour)\n6 1018\nIndium\nIn-109\n7 1016\nIn-110\n(long lived isotope)\n2 1017\nIn-110\n(short lived isotope)\n1 1016\nIn-111\n9 1016\nIn-112\n2 1016\nIn-113m\n5 1016\nIn-114\n1 1016\nIn-114m\n9 1015\nIn-115\n6 1014\nIn-115m\n3 1016\nIn-116m\n2 1016\nIn-117\n2 1016\nIn-117m\n2 1016\nIn-119m\n9 1015\nIodine\nI-120\n6 1015\nI-120\n2 1017\nI-120\n2 1017\nI-120m\n7 1015\nI-120m\n2 1017\nI-120m\n2 1017\nI-121\n4 1016\nI-121\n1 1018\nI-121\n1 1018\nI-123\n9 1016\nI-123\n5 1017\nI-123\n6 1017\nI-124\n2 1016\nI-124\n9 1015\nI-124\n1 1016\nI-125\n1 1015\nI-125\n1 1016\nI-125\n1 1016\nI-126\n8 1015\nI-126\n5 1015\nI-126\n6 1011\nI-128\n1 1016\nI-128\n2 1018\nI-128\n5 1018\nI-129\n1 1014\nI-129\n2 1015\nI-129\n2 1015\nI-130\n3 1016\nI-130\n5 1016\nI-130\n6 1016\nI-131\n9 1014\nI-131\n6 1015\nI-131\n7 1015\nI-132\n2 1016\nI-132\n2 1017\nI-132\n3 1017\nI-132m\n2 1016\nI-132m\n4 1017\nI-132m\n5 1017\nI-133\n2 1016\nI-133\n2 1016\nI-133\n3 1016\nI-134\n2 1016\nI-134\n3 1017\nI-134\n4 1017\nI-135\n2 1016\nI-135\n9 1016\nI-135\n1 1017\nIridium\nIr-182\n1 1016\nIr-184\n2 1016\nIr-185\n3 1016\nIr-186\n3 1016\nIr-186\n2 1016\nIr-187\n6 1016\nIr-188\n5 1016\nIr-189\n9 1016\nIr-190\n2 1016\nIr-190m\n3 1016\nIr-190m\n1 1017\nIr-192\n6 1015\nIr-192m\n4 1015\nIr-193m\n4 1016\nIr-194\n1 1016\nIr-194m\n1 1015\nIr-195\n2 1016\nIr-195m\n2 1016\nIron\nFe-52\n2 1016\nFe-55\n8 1016\nFe-59\n8 1015\nFe-60\n4 1014\nKrypton\nKr-74\n(gas)\n5 1017\nKr-76\n(gas)\n1 1018\nKr-77\n(gas)\n6 1017\nKr-79\n(gas)\n2 1018\nKr-81\n(gas)\n7 1015\nKr-81m\n(gas)\n5 1018\nKr-83m\n(gas)\n3 1020\nKr-85\n(gas)\n1 1020\nKr-85m\n(gas)\n4 1018\nKr-87\n(gas)\n7 1017\nKr-88\n(gas)\n3 1017\nLanthanum\nLa-131\n2 1016\nLa-132\n2 1016\nLa-135\n2 1018\nLa-137\n2 1016\nLa-138\n2 1015\nLa-140\n2 1016\nLa-141\n1 1016\nLa-142\n1 1016\nLa-143\n7 1015\nLead\nPb-195m\n2 1016\nPb-198\n4 1016\nPb-199\n6 1016\nPb-200\n3 1016\nPb-201\n8 1016\nPb-202\n6 1015\nPb-202m\n4 1016\nPb-203\n9 1016\nPb-205\n1 1017\nPb-209\n2 1016\nPb-210\n3 1013\nPb-211\n2 1016\nPb-212\n1 1015\nPb-214\n1 1016\nLutetium\nLu-169\n6 1016\nLu-170\n3 1016\nLu-171\n4 1016\nLu-172\n3 1016\nLu-173\n2 1016\nLu-174\n1 1016\nLu-174m\n3 1016\nLu-176\n3 1015\nLu-176m\n2 1016\nLu-177\n3 1016\nLu-177m\n3 1015\nLu-178\n1 1016\nLu-178m\n1 1016\nLu-179\n2 1016\nMagnesium\nMg-28\n5 1016\nManganese\nMn-51\n1 1016\nMn-52\n2 1016\nMn-52m\n8 1015\nMn-53\n1 1018\nMn-54\n3 1015\nMn-56\n1 1016\nMendelevium\nMd-257\n9 1015\nMd-258\n4 1013\nMercury\nHg-193\n(organic)\n3 1016\nHg-193\n(inorganic)\n3 1016\nHg-193\n(vapour)\n2 1017\nHg-193m\n(organic)\n2 1016\nHg-193m\n(inorganic)\n2 1016\nHg-193m\n(vapour)\n6 1016\nHg-194\n(organic)\n3 1015\nHg-194\n(inorganic)\n1 1016\nHg-194\n(vapour)\n6 1015\nHg-195\n(organic)\n5 1016\nHg-195\n(inorganic)\n5 1016\nHg-195\n(vapour)\n1 1017\nHg-195m\n(organic)\n3 1016\nHg-195m\n(inorganic)\n3 1016\nHg-195m\n(vapour)\n3 1016\nHg-197\n(organic)\n7 1016\nHg-197\n(inorganic)\n7 1016\nHg-197\n(vapour)\n5 1016\nHg-197m\n(organic)\n2 1016\nHg-197m\n(inorganic)\n2 1016\nHg-197m\n(vapour)\n4 1016\nHg-199m\n(organic)\n2 1016\nHg-199m\n(inorganic)\n2 1016\nHg-199m\n(vapour)\n1 1018\nHg-203\n(organic)\n3 1016\nHg-203\n(inorganic)\n3 1016\nHg-203\n(vapour)\n3 1016\nMolybdenum\nMo-90\n2 1016\nMo-93\n2 1016\nMo-93m\n4 1016\nMo-99\n2 1016\nMo-101\n2 1016\nNeodymium\nNd-136\n4 1016\nNd-138\n5 1017\nNd-139\n2 1016\nNd-139m\n3 1016\nNd-141\n2 1017\nNd-147\n2 1016\nNd-149\n2 1016\nNd-151\n1 1016\nNeon\nNe-19\n(gas)\n6 1017\nNeptunium\nNp-232\n3 1016\nNp-233\n2 1018\nNp-234\n5 1016\nNp-235\n2 1017\nNp-236\n(long lived isotope)\n3 1013\nNp-236\n(short lived isotope)\n3 1016\nNp-237\n5 1012\nNp-238\n2 1016\nNp-239\n1 1016\nNp-240\n7 1015\nNickel\nNi-56\n4 1012\nNi-56\n(carbonyl vapour)\n1 1017\nNi-57\n2 1016\nNi-57\n(carbonyl vapour)\n2 1017\nNi-59\n4 1017\nNi-59\n(carbonyl vapour)\n2 1017\nNi-63\n1 1017\nNi-63\n(carbonyl vapour)\n1 1017\nNi-65\n1 1016\nNi-65\n(carbonyl vapour)\n4 1017\nNi-66\n5 1016\nNi-66\n(carbonyl vapour)\n1 1017\nNiobium\nNb-88\n7 1015\nNb-89\n(long lived isotope)\n1 1016\nNb-89\n(short lived isotope)\n8 1015\nNb-90\n2 1016\nNb-93m\n1 1017\nNb-94\n1 1015\nNb-95\n2 1016\nNb-95m\n2 1016\nNb-96\n2 1016\nNb-97\n2 1016\nNb-98\n1 1016\nNitrogen\nN-13\n(gas)\n6 1017\nOsmium\nOs-180\n1 1017\nOs-181\n3 1016\nOs-182\n6 1016\nOs-185\n7 1015\nOs-189m\n1 1017\nOs-191\n4 1016\nOs-191m\n7 1016\nOs-193\n2 1016\nOs-194\n2 1015\nPalladium\nPd-100\n7 1016\nPd-101\n8 1016\nPd-103\n4 1017\nPd-107\n3 1017\nPd-109\n2 1016\nPhosphorus\nP-32\n1 1015\nP-33\n3 1016\nPlatinum\nPt-186\n9 1017\nPt-188\n6 1016\nPt-189\n6 1016\nPt-191\n7 1016\nPt-193\n1 1018\nPt-193m\n3 1016\nPt-195m\n3 1016\nPt-197\n2 1016\nPt-197m\n2 1016\nPt-199\n2 1016\nPt-200\n2 1016\nPlutonium\nPu-234\n1 1016\nPu-235\n2 1017\nPu-236\n6 1012\nPu-237\n1 1017\nPu-238\n2 1012\nPu-239\n2 1012\nPu-240\n2 1012\nPu-241\n1 1014\nPu-242\n2 1012\nPu-243\n2 1016\nPu-244\n2 1012\nPu-245\n2 1016\nPu-246\n2 1016\nPolonium\nPo-203\n3 1016\nPo-205\n7 1016\nPo-206\n1 1015\nPo-207\n8 1016\nPo-208\n2 1013\nPo-209\n2 1013\nPo-210\n4 1013\nPotassium\nK-40\n2 1016\nK-42\n7 1015\nK-43\n2 1016\nK-44\n6 1015\nK-45\n9 1015\nPraseodymium\nPr-136\n1 1016\nPr-137\n2 1016\nPr-138m\n2 1016\nPr-139\n7 1016\nPr-142\n1 1012\nPr-142m\n2 1019\nPr-143\n2 1016\nPr-144\n2 1016\nPr-145\n1 1016\nPr-147\n1 1016\nPromethium\nPm-141\n1 1012\nPm-143\n9 1015\nPm-144\n2 1015\nPm-145\n3 1016\nPm-146\n2 1015\nPm-147\n4 1016\nPm-148\n1 1016\nPm-148m\n5 1015\nPm-149\n2 1016\nPm-150\n1 1012\nPm-151\n2 1016\nProtactinium\nPa-227\n3 1015\nPa-228\n3 1015\nPa-230\n3 1014\nPa-231\n2 1012\nPa-232\n2 1016\nPa-233\n2 1016\nPa-234\n5 1015\nRadium\nRa-223\n3 1013\nRa-224\n7 1013\nRa-225\n3 1013\nRa-226\n2 1013\nRa-227\n2 1016\nRa-228\n1 1013\nRhenium\nRe-177\n2 1016\nRe-178\n2 1016\nRe-181\n3 1016\nRe-182\n(long lived isotope)\n2 1016\nRe-182\n(short lived isotope)\n4 1016\nRe-184\n1 1016\nRe-184m\n7 1015\nRe-186\n2 1016\nRe-186m\n1 1016\nRe-187\n5 1018\nRe-188\n1 1016\nRe-188m\n3 1016\nRe-189\n2 1016\nRhodium\nRh-99\n4 1016\nRh-99m\n9 1016\nRh-100\n4 1016\nRh-101\n7 1015\nRh-101m\n2 1017\nRh-102\n1 1015\nRh-102m\n6 1015\nRh-103m\n3 1019\nRh-105\n2 1016\nRh-106m\n2 1016\nRh-107\n2 1016\nRubidium\nRb-79\n1 1016\nRb-81\n2 1016\nRb-81m\n4 1016\nRb-82m\n3 1016\nRb-83\n1 1016\nRb-84\n1 1016\nRb-86\n2 1015\nRb-87\n4 1016\nRb-88\n5 1015\nRb-89\n9 1015\nRuthenium\nRu-94\n1 1018\nRu-94\n(tetroxide vapour)\n1 1018\nRu-97\n3 1017\nRu-97\n(tetroxide vapour)\n1 1018\nRu-103\n2 1016\nRu-103\n(tetroxide vapour)\n1 1017\nRu-105\n2 1016\nRu-105\n(tetroxide vapour)\n6 1017\nRu-106\n3 1015\nRu-106\n(tetroxide vapour)\n8 1015\nSamarium\nSm-141\n1 1016\nSm-141m\n2 1016\nSm-142\n9 1016\nSm-145\n3 1016\nSm-146\n2 1013\nSm-147\n3 1013\nSm-151\n6 1016\nSm-153\n2 1016\nSm-155\n2 1016\nSm-156\n2 1016\nScandium\nSc-43\n2 1016\nSc-44\n2 1016\nSc-44m\n9 1016\nSc-46\n3 1015\nSc-47\n3 1016\nSc-48\n2 1016\nSc-49\n1 1016\nSelenium\nSe-70\n2 1016\nSe-73\n2 1016\nSe-73m\n2 1016\nSe-75\n2 1015\nSe-79\n5 1014\nSe-81\n2 1016\nSe-81m\n4 1016\nSe-83\n2 1016\nSilicon\nSi-31\n2 1016\nSi-32\n2 1015\nSilver\nAg-102\n1 1016\nAg-103\n2 1016\nAg-104\n3 1016\nAg-104m\n2 1016\nAg-105\n2 1016\nAg-106\n2 1016\nAg-106m\n2 1016\nAg-108m\n1 1015\nAg-110m\n3 1014\nAg-111\n2 1016\nAg-112\n7 1015\nAg-115\n9 1015\nSodium\nNa-22\n1 1015\nNa-24\n2 1016\nStrontium\nSr-80\n1 1018\nSr-81\n9 1015\nSr-82\n2 1016\nSr-83\n3 1016\nSr-85\n1 1016\nSr-85m\n3 1017\nSr-87m\n7 1016\nSr-89\n1 1016\nSr-90\n8 1014\nSr-91\n2 1016\nSr-92\n2 1016\nSulphur\nS-35\n(inorganic)\n1 1016\nS-35\n(organic)\n2 1015\nS-35\n(carbon disulphide vapour)\n2 1017\nS-35\n(vapour)\n2 1018\nS-35\n(dioxide gas)\n1 1018\nTantalum\nTa-172\n2 1016\nTa-173\n2 1016\nTa-174\n2 1016\nTa-175\n2 1016\nTa-176\n3 1016\nTa-177\n1 1017\nTa-178\n(long lived isotope)\n3 1016\nTa-179\n6 1016\nTa-180\n9 1015\nTa-180m\n6 1016\nTa-182\n3 1015\nTa-182m\n2 1016\nTa-183\n2 1016\nTa-184\n2 1016\nTa-185\n1 1016\nTa-186\n9 1015\nTechnetium\nTc-93\n5 1017\nTc-93m\n4 1016\nTc-94\n6 1016\nTc-94m\n1 1016\nTc-95\n4 1017\nTc-95m\n1 1016\nTc-96\n4 1016\nTc-96m\n2 1017\nTc-97\n9 1016\nTc-97m\n5 1016\nTc-98\n1 1015\nTc-99\n5 1014\nTc-99m\n1 1017\nTc-101\n2 1016\nTc-104\n6 1015\nTellurium\nTe-116\n6 1016\nTe-116\n(vapour)\n2 1018\nTe-121\n4 1016\nTe-121\n(vapour)\n3 1017\nTe-121m\n1 1016\nTe-121m\n(vapour)\n3 1016\nTe-123\n6 1016\nTe-123\n(vapour)\n2 1016\nTe-123m\n2 1016\nTe-123m\n(vapour)\n5 1016\nTe-125m\n2 1016\nTe-125m\n(vapour)\n8 1016\nTe-127\n2 1016\nTe-127\n(vapour)\n2 1018\nTe-127m\n1 1016\nTe-127m\n(vapour)\n2 1016\nTe-129\n2 1016\nTe-129\n(vapour)\n4 1018\nTe-129m\n1 1016\nTe-129m\n(vapour)\n3 1016\nTe-131\n1 1016\nTe-131\n(vapour)\n1 1018\nTe-131m\n2 1016\nTe-131m\n(vapour)\n5 1016\nTe-132\n3 1016\nTe-132\n(vapour)\n2 1016\nTe-133\n1 1016\nTe-133\n(vapour)\n7 1017\nTe-133m\n1 1016\nTe-133m\n(vapour)\n2 1017\nTe-134\n3 1016\nTe-134\n(vapour)\n7 1017\nTerbium\nTb-147\n2 1016\nTb-149\n2 1016\nTb-150\n2 1016\nTb-151\n4 1016\nTb-153\n7 1016\nTb-154\n4 1016\nTb-155\n1 1017\nTb-156\n3 1016\nTb-156m\n(long lived isotope)\n1 1017\nTb-156m\n(short lived isotope)\n4 1016\nTb-157\n1 1017\nTb-158\n2 1015\nTb-160\n5 1015\nTb-161\n2 1016\nThallium\nTl-194\n1 1017\nTl-194m\n2 1016\nTl-195\n4 1016\nTl-197\n5 1016\nTl-198\n7 1016\nTl-198m\n2 1016\nTl-199\n6 1016\nTl-200\n1 1017\nTl-201\n7 1016\nTl-202\n7 1016\nTl-204\n2 1016\nThorium\nTh-226\n4 1015\nTh-227\n2 1013\nTh-228\n6 1012\nTh-229\n1 1012\nTh-230\n2 1012\nTh-231\n2 1016\nTh-232\n2 1012\nTh-234\n3 1016\nThulium\nTm-162\n2 1016\nTm-166\n3 1016\nTm-167\n4 1016\nTm-170\n2 1016\nTm-171\n1 1017\nTm-172\n2 1016\nTm-173\n2 1016\nTm-175\n2 1016\nTin\nSn-110\n6 1017\nSn-111\n2 1016\nSn-113\n5 1016\nSn-117m\n3 1016\nSn-119m\n5 1016\nSn-121\n3 1016\nSn-121m\n4 1016\nSn-123\n2 1016\nSn-123m\n2 1016\nSn-125\n1 1016\nSn-126\n5 1015\nSn-127\n2 1016\nSn-128\n2 1016\nTitanium\nTi-44\n2 1015\nTi-45\n2 1016\nTungsten\nW-176\n5 1016\nW-177\n3 1016\nW-178\n6 1017\nW-179\n1 1017\nW-181\n1 1017\nW-185\n4 1016\nW-187\n2 1016\nW-188\n3 1016\nUranium\nU-230\n2 1013\nU-231\n7 1016\nU-232\n6 1012\nU-233\n3 1013\nU-234\n3 1013\nU-235\n3 1013\nU-236\n3 1013\nU-237\n2 1016\nU-238\n3 1013\nU-239\n2 1016\nU-240\n2 1016\nVanadium\nV-47\n1 1016\nV-48\n1 1016\nV-49\n2 1018\nXenon\nXe-120\n(gas)\n1 1018\nXe-121\n(gas)\n3 1017\nXe-122\n(gas)\n1 1019\nXe-123\n(gas)\n9 1017\nXe-125\n(gas)\n2 1018\nXe-127\n(gas)\n2 1018\nXe-129m\n(gas)\n2 1019\nXe-131m\n(gas)\n4 1019\nXe-133\n(gas)\n1 1019\nXe-133m\n(gas)\n2 1019\nXe-135\n(gas)\n2 1018\nXe-135m\n(gas)\n1 1018\nXe-138\n(gas)\n5 1017\nYtterbium\nYb-162\n1 1017\nYb-166\n8 1016\nYb-167\n4 1016\nYb-169\n3 1016\nYb-175\n4 1016\nYb-177\n2 1016\nYb-178\n2 1016\nYttrium\nY-86\n2 1016\nY-86m\n1 1017\nY-87\n2 1017\nY-88\n2 1015\nY-90\n2 1016\nY-90m\n7 1016\nY-91\n2 1016\nY-91m\n2 1017\nY-92\n6 1015\nY-93\n8 1015\nY-94\n6 1015\nY-95\n6 1015\nZinc\nZn-62\n1 1017\nZn-63\n1 1016\nZn-65\n5 1014\nZn-69\n2 1016\nZn-69m\n2 1017\nZn-71m\n2 1016\nZn-72\n3 1016\nZirconium\nZr-86\n2 1017\nZr-88\n1 1016\nZr-89\n4 1016\nZr-93\n8 1015\nZr-95\n8 1015\nZr-97\n2 1016\nOther radionuclides not listed above\n4 1011",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/uksi/2018/42/schedule/2/part/1",
    "retrieved_at": "2026-10-28T23:03:30.707998+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}