Code of Maine Rules › 10 - DEPARTMENT OF HEALTH AND HUMAN SERVICES › 144 - DEPARTMENT OF HEALTH AND HUMAN SERVICES - GENERAL › Chapter 220 - Rules Relating to Radiation Protection › Part C - LICENSING OF RADIOACTIVE MATERIAL › Appendix 144-220-C-E - QUANTITIES FOR USE WITH DECOMMISSIONING

Current through 2024-29, July 17, 2024
Material
Microcurie*
Material
Microcurie*
Americium-241
0.01
Germanium-71
100
Antimony-122
100
Gold-198
100
Antimony-124
10
Gold-199
100
Antimony-125
10
Hafnium-181
10
Arsenic-73
100
Holmium-166
100
Arsenic-74
10
Hydrogen-3
1,000
Arsenic-76
10
Indium-113m
100
Arsenic-77
100
Indium-114m
10
Barium-131
10
Indium-115m
100
Barium-133
10
Indium-115
10
Barium-140
10
Iodine-125
1
Bismuth-210
1
Iodine-126
1
Bromine-82
10
Iodine-129
0.1
Cadmium-109
10
Iodine-131
1
Cadmium-115m
10
Iodine-132
10
Cadmium-115
100
Iodine-133
1
Calcium-45
10
Iodine-134
10
Calcium-47
10
Iodine-135
10
Carbon-14
100
Iridium-192
10
Cerium-141
100
Iridium-194
100
Cerium-143
100
Iron-55
100
Cerium-144
1
Iron-59
10
Cesium-131
1,000
Krypton-85
100
Cesium-134m
100
Krypton-87
10
Cesium-134
1
Lanthanum-140
10
Cesium-135
10
Lutetium-177
100
Cesium-136
10
Manganese-52
10
Cesium-137
10
Manganese-54
10
Chlorine-36
10
Manganese-56
10
Chlorine-38
10
Mercury-197m
100
Chromium-51
1,000
Mercury-197
100
Cobalt-58m
10
Mercury-203
10
Cobalt-58
10
Molybdenum-99
100
Cobalt-60
1
Neodymium-147
100
Copper-64
100
Neodymium-149
100
Dysprosium-165
10
Nickel-59
100
Dysprosium-166
100
Nickel-63
10
Erbium-169
100
Nickel-65
100
Erbium-171
100
Niobium-93m
10
Europium-152 (9.2 h)
100
Niobium-95
10
Europium-152 (13 yr)
1
Niobium-97
10
Europium-154
1
Osmium-185
10
Europium-155
10
Osmium-191m
100
Florine-18
1,000
Osmium-191
100
Gadolinium-153
10
Osmium-193
100
Gadolinium-159
100
Palladium-103
100
Gallium-72
10
Palladium-109
100
Phosphorus-32
10
Technetium-97m
100
Platinum-191
100
Technetium-97
100
Platinum-193m
100
Technetium-99m
100
Platinum-193
100
Technetium-99
10
Platinum-197m
100
Tellurium-125m
10
Platinum-197
100
Tellurium-127m
10
Plutonium-239
0.01
Tellurium-127
100
Polonium-210
0.1
Tellurium-129m
10
Potassium-42
10
Tellurium-129
100
Praseodymium-142
100
Tellurium-131m
10
Praseodymium-143
100
Tellurium-132
10
Promethium-147
10
Terbium-160
10
Promethium-149
10
Thallium-200
100
Radium-226
0.01
Thallium-201
100
Rhenium-186
100
Thallium-202
100
Rhenium-188
100
Thallium-204
10
Rhodium-103m
100
Thorium (natural)**
100
Rhodium-105
100
Thulium-170
10
Rubidium-86
10
Thulium-171
10
Rubidium-87
10
Tin-113
10
Ruthenium-97
100
Tin-125
10
Ruthenium-103
10
Tungsten-181
10
Ruthenium-105
10
Tungsten-185
10
Ruthenium-106
1
Tungsten-187
100
Samarium-153
100
Uranium (natural)***
100
Scandium-46
10
Uranium-233
0.01
Scandium-47
100
Uranium-234
0.01
Scandium-48
10
Uranium-235
0.01
Selenium-75
10
Vanadium-48
10
Silicon-31
100
Xenon-131m
1,000
Silver-105
10
Xenon-133
100
Silver-110m
1
Xenon-135
100
Silver-111
100
Ytterbium-175
100
Sodium-22
1
Yttrium-90
10
Sodium-24
10
Yttrium-91
10
Strontium-85
10
Yttrium-92
100
Strontium-89
1
Yttrium-93
100
Strontium-90
0.1
Zinc-65
10
Strontium-91
10
Zinc-69m
100
Strontium-92
10
Zinc-69
1,000
Sulfur -35
100
Zirconium-93
10
Tantalum-182
10
Zirconium-95
10
Technetium-96
10
Zirconium-97
10
* To convert µCi to kBq, multiply the µCi value
					 by 37.
** Based on alpha disintegration rate of Th-232, Th-230 and
					 their daughter products.
*** Based on alpha disintegration rate of U-238, U-234, and
					 U-235.
QUANTITIES FOR USE WITH DECOMMISSIONING
Material
Microcurie*
Any alpha emitting radionuclide not listed above or
								mixtures of alpha emitters of unknown composition
0.01
Any radionuclide other than alpha emitting
								radionuclides, not listed above or mixtures of beta emitters of unknown
								composition
0.1
* To convert µCi to kBq, multiply the µCi value
					 by 37.
NOTE: 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 -- that is, unity.