10 C.F.R. Appendix B to Part 30—Quantities1 of Licensed Material Requiring Labeling
Title 10 - Energy
Note: For purposes of §20.303, where there is involved a combination of isotopes in known amounts, the limit for the combination should be derived as follows: Determine, for each isotope in the combination, the ratio between the quantity present in the combination and the limit otherwise established for the specific isotope when not in combination. The sum of such ratios for all the isotopes in the combination may not exceed “1” (i.e., “unity”). [35 FR 6425, Apr. 22, 1970, as amended at 36 FR 16898, Aug. 26, 1971; 38 FR 29314, Oct. 24, 1973; 39 FR 23991, June 28, 1974; 45 FR 71763, Oct. 30, 1980. Redesignated at 56 FR 23391, May 21, 1991, and further redesignated at 58 FR 67659, Dec. 22, 1993]
Title 10: Energy
PART 30—RULES OF GENERAL APPLICABILITY TO DOMESTIC LICENSING OF BYPRODUCT MATERIAL
Appendix B to Part 30—Quantities1 of Licensed Material Requiring Labeling
------------------------------------------------------------------------ Material Microcuries------------------------------------------------------------------------Americium-241.............................................. .01Antimony-122............................................... 100Antimony-124............................................... 10Antimony-125............................................... 10Arsenic-73................................................. 100Arsenic-74................................................. 10Arsenic-76................................................. 10Arsenic-77................................................. 100Barium-131................................................. 10Barium-133................................................. 10Barium-140................................................. 10Bismuth-210................................................ 1Bromine-82................................................. 10Cadmium-109................................................ 10Cadmium-115m............................................... 10Cadmium-115................................................ 100Calcium-45................................................. 10Calcium-47................................................. 10Carbon-14.................................................. 100Cerium-141................................................. 100Cerium-143................................................. 100Cerium-144................................................. 1Cesium-131................................................. 1,000Cesium-134m................................................ 100Cesium-134................................................. 1Cesium-135................................................. 10Cesium-136................................................. 10Cesium-137................................................. 10Chlorine-36................................................ 10Chlorine-38................................................ 10Chromium-51................................................ 1,000Cobalt-58m................................................. 10Cobalt-58.................................................. 10Cobalt-60.................................................. 1Copper-64.................................................. 100Dysprosium-165............................................. 10Dysprosium-166............................................. 100Erbium-169................................................. 100Erbium-171................................................. 100Europium-152 9.2 h......................................... 100Europium-152 13 yr......................................... 1Europium-154............................................... 1Europium-155............................................... 10Fluorine-18................................................ 1,000Gadolinium-153............................................. 10Gadolinium-159............................................. 100Gallium-72................................................. 10Germanium-71............................................... 100Gold-198................................................... 100Gold-199................................................... 100Hafnium-181................................................ 10Holmium-166................................................ 100Hydrogen-3................................................. 1,000Indium-113m................................................ 100Indium-114m................................................ 10Indium-115m................................................ 100Indium-115................................................. 10Iodine-125................................................. 1Iodine-126................................................. 1Iodine-129................................................. 0.1Iodine-131................................................. 1Iodine-132................................................. 10Iodine-133................................................. 1Iodine-134................................................. 10Iodine-135................................................. 10Iridium-192................................................ 10Iridium-194................................................ 100Iron-55.................................................... 100Iron-59.................................................... 10Krypton-85................................................. 100Krypton-87................................................. 10Lanthanum-140.............................................. 10Lutetium-177............................................... 100Manganese-52............................................... 10Manganese-54............................................... 10Manganese-56............................................... 10Mercury-197m............................................... 100Mercury-197................................................ 100Mercury-203................................................ 10Molybdenum-99.............................................. 100Neodymium-147.............................................. 100Neodymium-149.............................................. 100Nickel-59.................................................. 100Nickel-63.................................................. 10Nickel-65.................................................. 100Niobium-93m................................................ 10Niobium-95................................................. 10Niobium-97................................................. 10Osmium-185................................................. 10Osmium-191m................................................ 100Osmium-191................................................. 100Osmium-193................................................. 100Palladium-103.............................................. 100Palladium-109.............................................. 100Phosphorus-32.............................................. 10Platinum-191............................................... 100Platinum-193m.............................................. 100Platinum-193............................................... 100Platinum-197m.............................................. 100Platinum-197............................................... 100Plutonium-239.............................................. .01Polonium-210............................................... 0.1Potassium-42............................................... 10Praseodymium-142........................................... 100Praseodymium-143........................................... 100Promethium-147............................................. 10Promethium-149............................................. 10Radium-226................................................. .01Rhenium-186................................................ 100Rhenium-188................................................ 100Rhodium-103m............................................... 100Rhodium-105................................................ 100Rubidium-86................................................ 10Rubidium-87................................................ 10Ruthenium-97............................................... 100Ruthenium-103.............................................. 10Ruthenium-105.............................................. 10Ruthenium-106.............................................. 1Samarium-151............................................... 10Samarium-153............................................... 100Scandium-46................................................ 10Scandium-47................................................ 100Scandium-48................................................ 10Selenium-75................................................ 10Silicon-31................................................. 100Silver-105................................................. 10Silver-110m................................................ 1Silver-111................................................. 100Sodium-24.................................................. 10Strontium-85............................................... 10Strontium-89............................................... 1Strontium-90............................................... 0.1Strontium-91............................................... 10Strontium-92............................................... 10Sulphur-35................................................. 100Tantalum-182............................................... 10Technetium-96.............................................. 10Technetium-97m............................................. 100Technetium-97.............................................. 100Technetium-99m............................................. 100Technetium-99.............................................. 10Tellurium-125m............................................. 10Tellurium-127m............................................. 10Tellurium-127.............................................. 100Tellurium-129m............................................. 10Tellurium-129.............................................. 100Tellurium-131m............................................. 10Tellurium-132.............................................. 10Terbium-160................................................ 10Thallium-200............................................... 100Thallium-201............................................... 100Thallium-202............................................... 100Thallium-204............................................... 10Thorium (natural) \1\...................................... 100Thulium-170................................................ 10Thulium-171................................................ 10Tin-113.................................................... 10Tin-125.................................................... 10Tungsten-181............................................... 10Tungsten-185............................................... 10Tungsten-187............................................... 100Uranium (natural) \2\...................................... 100Uranium-233................................................ .01Uranium-234_Uranium-235.................................... .01Vanadium-48................................................ 10Xenon-131m................................................. 1,000Xenon-133.................................................. 100Xenon-135.................................................. 100Ytterbium-175.............................................. 100Yttrium-90................................................. 10Yttrium-91................................................. 10Yttrium-92................................................. 100Yttrium-93................................................. 100Zinc-65.................................................... 10Zinc-69m................................................... 100Zinc-69.................................................... 1,000Zirconium-93............................................... 10Zirconium-95............................................... 10Zirconium-97............................................... 10Any alpha emitting radionuclide not listed above or .01 mixtures of alpha emitters of unknown composition.........Any radionuclide other than alpha emitting radionuclides, .1 not listed above or mixtures of beta emitters of unknown composition...............................................------------------------------------------------------------------------\1\ Based on alpha disintegration rate of Th-232, Th-230 and their daughter products.\2\ Based on alpha disintegration rate of U-238, U-234, and U-235.
