Appendix B to Part 30—Quantities 1 of Licensed Material Requiring Labeling

Appendix B - Appendix B to Part 30—Quantities 1 of Licensed Material Requiring Labeling

Material	Microcuries	Americium-241	.01	Antimony-122	100	Antimony-124	10	Antimony-125	10	Arsenic-73	100	Arsenic-74	10	Arsenic-76	10	Arsenic-77	100	Barium-131	10	Barium-133	10	Barium-140	10	Bismuth-210	1	Bromine-82	10	Cadmium-109	10	Cadmium-115m	10	Cadmium-115	100	Calcium-45	10	Calcium-47	10	Carbon-14	100	Cerium-141	100	Cerium-143	100	Cerium-144	1	Cesium-131	1,000	Cesium-134m	100	Cesium-134	1	Cesium-135	10	Cesium-136	10	Cesium-137	10	Chlorine-36	10	Chlorine-38	10	Chromium-51	1,000	Cobalt-58m	10	Cobalt-58	10	Cobalt-60	1	Copper-64	100	Dysprosium-165	10	Dysprosium-166	100	Erbium-169	100	Erbium-171	100	Europium-152 9.2 h	100	Europium-152 13 yr	1	Europium-154	1	Europium-155	10	Fluorine-18	1,000	Gadolinium-153	10	Gadolinium-159	100	Gallium-72	10	Germanium-71	100	Gold-198	100	Gold-199	100	Hafnium-181	10	Holmium-166	100	Hydrogen-3	1,000	Indium-113m	100	Indium-114m	10	Indium-115m	100	Indium-115	10	Iodine-125	1	Iodine-126	1	Iodine-129	0.1	Iodine-131	1	Iodine-132	10	Iodine-133	1	Iodine-134	10	Iodine-135	10	Iridium-192	10	Iridium-194	100	Iron-55	100	Iron-59	10	Krypton-85	100	Krypton-87	10	Lanthanum-140	10	Lutetium-177	100	Manganese-52	10	Manganese-54	10	Manganese-56	10	Mercury-197m	100	Mercury-197	100	Mercury-203	10	Molybdenum-99	100	Neodymium-147	100	Neodymium-149	100	Nickel-59	100	Nickel-63	10	Nickel-65	100	Niobium-93m	10	Niobium-95	10	Niobium-97	10	Osmium-185	10	Osmium-191m	100	Osmium-191	100	Osmium-193	100	Palladium-103	100	Palladium-109	100	Phosphorus-32	10	Platinum-191	100	Platinum-193m	100	Platinum-193	100	Platinum-197m	100	Platinum-197	100	Plutonium-239	.01	Polonium-210	0.1	Potassium-42	10	Praseodymium-142	100	Praseodymium-143	100	Promethium-147	10	Promethium-149	10	Radium-226	.01	Rhenium-186	100	Rhenium-188	100	Rhodium-103m	100	Rhodium-105	100	Rubidium-86	10	Rubidium-87	10	Ruthenium-97	100	Ruthenium-103	10	Ruthenium-105	10	Ruthenium-106	1	Samarium-151	10	Samarium-153	100	Scandium-46	10	Scandium-47	100	Scandium-48	10	Selenium-75	10	Silicon-31	100	Silver-105	10	Silver-110m	1	Silver-111	100	Sodium-24	10	Strontium-85	10	Strontium-89	1	Strontium-90	0.1	Strontium-91	10	Strontium-92	10	Sulphur-35	100	Tantalum-182	10	Technetium-96	10	Technetium-97m	100	Technetium-97	100	Technetium-99m	100	Technetium-99	10	Tellurium-125m	10	Tellurium-127m	10	Tellurium-127	100	Tellurium-129m	10	Tellurium-129	100	Tellurium-131m	10	Tellurium-132	10	Terbium-160	10	Thallium-200	100	Thallium-201	100	Thallium-202	100	Thallium-204	10	Thorium (natural) 1	100	Thulium-170	10	Thulium-171	10	Tin-113	10	Tin-125	10	Tungsten-181	10	Tungsten-185	10	Tungsten-187	100	Uranium (natural) 2	100	Uranium-233	.01	Uranium-234—Uranium-235	.01	Vanadium-48	10	Xenon-131m	1,000	Xenon-133	100	Xenon-135	100	Ytterbium-175	100	Yttrium-90	10	Yttrium-91	10	Yttrium-92	100	Yttrium-93	100	Zinc-65	10	Zinc-69m	100	Zinc-69	1,000	Zirconium-93	10	Zirconium-95	10	Zirconium-97	10	Any alpha emitting radionuclide not listed above or mixtures of alpha emitters of unknown composition	.01	Any radionuclide other than alpha emitting radionuclides, not listed above or mixtures of beta emitters of unknown composition	.1

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.

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]