§336.360. Appendix C.
Quantities1 of Licensed Material Requiring Labeling

Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2



Hydrogen-3

Beryllium-7

Beryllium-10

Carbon-11

Carbon-14

Fluorine-18

Sodium-22

Sodium-24

Magnesium-28

Aluminum-26

Silicon-31

Silicon-32

Phosphorus-32

Phosphorus-33

Sulfur-35

Chlorine-36

Chlorine-38

Chlorine-39

Argon-39

Argon-41

Potassium-40

Potassium-42

Potassium-43

Potassium-44

Potassium-45

Calcium-41

Calcium-45

Calcium-47

Scandium-43

Scandium-44m

Scandium-44

Scandium-46

Scandium-47

Scandium-48

Scandium-49

Titanium-44

Titanium-45



1,000

1,000

1

1,000

100

1,000

10

100

100

10

1,000

1

10

100

100

10

1,000

1,000

1,000

1,000

100

1,000

1,000

1,000

1,000

100

100

100

1,000

100

100

10

100

100

1,000

1

1,000



Vanadium-47

Vanadium-48

Vanadium-49

Chromium-48

Chromium-49

Chromium-51

Manganese-51

Manganese-52m

Manganese-52

Manganese-53

Manganese-54

Manganese-56

Iron-52

Iron-55

Iron-59

Iron-60

Cobalt-55

Cobalt-56

Cobalt-57

Cobalt-58m

Cobalt-58

Cobalt-60m

Cobalt-60

Cobalt-61

Cobalt-62m

Nickel-56

Nickel-57

Nickel-59

Nickel-63

Nickel-65

Nickel-66

Copper-60

Copper-61

Copper-64

Copper-67

Zinc-62

Zinc-63



1,000

100

1,000

1,000

1,000

1,000

1,000

1,000

100

1,000

100

1,000

100

100

10

1

100

10

100

1,000

100

1,000

1

1,000

1,000

100

100

100

100

1,000

10

1,000

1,000

1,000

1,000

100

1,000


Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2



Zinc-65

Zinc-69m

Zinc-69

Zinc-71m

Zinc-72

Gallium-65

Gallium-66

Gallium-67

Gallium-68

Gallium-70

Gallium-72

Gallium-73

Germanium-66

Germanium-67

Germanium-68

Germanium-69

Germanium-71

Germanium-75

Germanium-77

Germanium-78

Arsenic-69

Arsenic-70

Arsenic-71

Arsenic-72

Arsenic-73

Arsenic-74

Arsenic-76

Arsenic-77

Arsenic-78

Selenium-70

Selenium-73m

Selenium-73

Selenium-75

Selenium-79

Selenium-81m

Selenium-81

Selenium-83



10

100

1,000

1,000

100

1,000

100

1,000

1,000

1,000

100

1,000

1,000

1,000

10

1,000

1,000

1,000

1,000

1,000

1,000

1,000

100

100

100

100

100

100

1,000

1,000

1,000

100

100

100

1,000

1,000

1,000



Bromine-74m

Bromine-74

Bromine-75

Bromine-76

Bromine-77

Bromine-80m

Bromine-80

Bromine-82

Bromine-83

Bromine-84

Krypton-74

Krypton-76

Krypton-77

Krypton-79

Krypton-81

Krypton-83m

Krypton-85m

Krypton-85

Krypton-87

Krypton-88

Rubidium-79

Rubidium-81m

Rubidium-81

Rubidium-82m

Rubidium-83

Rubidium-84

Rubidium-86

Rubidium-87

Rubidium-88

Rubidium-89

Strontium-80

Strontium-81

Strontium-83

Strontium-85m

Strontium-85

Strontium-87m

Strontium-89



1,000

1,000

1,000

100

1,000

1,000

1,000

100

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

100

100

100

100

1,000

1,000

100

1,000

100

1,000

100

1,000

10


Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2



Strontium-90

Strontium-91

Strontium-92

Yttrium-86m

Yttrium-86

Yttrium-87

Yttrium-88

Yttrium-90m

Yttrium-90

Yttrium-91m

Yttrium-91

Yttrium-92

Yttrium-93

Yttrium-94

Yttrium-95

Zirconium-86

Zirconium-88

Zirconium-89

Zirconium-93

Zirconium-95

Zirconium-97

Niobium-88

Niobium-89m

(66 minutes)

Niobium-89

(122 minutes)

Niobium-90

Niobium-93m

Niobium-94

Niobium-95m

Niobium-95

Niobium-96

Niobium-97

Niobium-98

Molybdenum-90

Molybdenum-93m

Molybdenum-93



0.1

100

100

1,000

100

100

10

1,000

10

1,000

10

100

100

1,000

1,000

100

10

100

1

10

100

1,000

1,000

1,000

100

10

1

100

100

100

1,000

1,000

100

100

10



Molybdenum-99

Molybdenum-101

Technetium-93m

Technetium-93

Technetium-94m

Technetium-94

Technetium-96m

Technetium-96

Technetium-97m

Technetium-97

Technetium-98

Technetium-99m

Technetium-99

Technetium-101

Technetium-104

Ruthenium-94

Ruthenium-97

Ruthenium-103

Ruthenium-105

Ruthenium-106

Rhodium-99m

Rhodium-99

Rhodium-100

Rhodium-101m

Rhodium-101

Rhodium-102m

Rhodium-102

Rhodium-103m

Rhodium-105

Rhodium-106m

Rhodium-107

Palladium-100

Palladium-101

Palladium-103

Palladium-107

Palladium-109

Silver-102



100

1,000

1,000

1,000

1,000

1,000

1,000

100

100

1,000

10

1,000

100

1,000

1,000

1,000

1,000

100

1,000

1

1,000

100

100

1,000

10

10

10

1,000

100

1,000

1,000

100

1,000

100

10

100

1,000


Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2



Silver-103

Silver-104m

Silver-104

Silver-105

Silver-106m

Silver-106

Silver-108m

Silver 110m

Silver-111

Silver-112

Silver-115

Cadmium-104

Cadmium-107

Cadmium-109

Cadmium-113m

Cadmium-113

Cadmium-115m

Cadmium-115

Cadmium-117m

Cadmium-117

Indium-109

Indium-110

(69.1 minutes)

Indium-110

(4.9 hours)

Indium-111

Indium-112

Indium-113m

Indium-114m

Indium-115m

Indium-115

Indium-116m

Indium-117m

Indium-117

Indium-119m

Tin-110

Tin-111



1,000

1,000

1,000

100

100

1,000

1

10

100

100

1,000

1,000

1,000

1

0.1

100

10

100

1,000

1,000

1,000



1,000



1,000

100

1,000

1,000

10

1,000

100

1,000

1,000

1,000

1,000

100

1,000



Tin-113

Tin-117m

Tin-119m

Tin-121m

Tin-121

Tin-123m

Tin-123

Tin-125

Tin-126

Tin-127

Tin-128

Antimony-115

Antimony-116m

Antimony-116

Antimony-117

Antimony-118m

Antimony-119

Antimony-120

(16 minutes)

Antimony-120

(5.76 days)

Antimony-122

Antimony-124m

Antimony-124

Antimony-125

Antimony-126m

Antimony-126

Antimony-127

Antimony-128

(10.4 minutes)

Antimony-128

(9.01 hours)

Antimony-129

Antimony-130

Antimony-131

Tellurium-116

Tellurium-121m



100

100

100

100

1,000

1,000

10

10

10

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000



1,000



100

100

1,000

10

100

1,000

100

100



1,000



100

100

1,000

1,000

1,000

10


Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2



Tellurium-121

Tellurium-123m

Tellurium-123

Tellurium-125m

Tellurium-127m

Tellurium-127

Tellurium-129m

Tellurium-129

Tellurium-131m

Tellurium-131

Tellurium-132

Tellurium-133m

Tellurium-133

Tellurium-134

Iodine-120m

Iodine-120

Iodine-121

Iodine-123

Iodine-124

Iodine-125

Iodine-126

Iodine-128

Iodine-129

Iodine-130

Iodine-131

Iodine-132m

Iodine-132

Iodine-133

Iodine-134

Iodine-135

Xenon-120

Xenon-121

Xenon-122

Xenon-123

Xenon-125

Xenon-127

Xenon-129m



100

10

100

10

10

1,000

10

1,000

10

100

10

100

1,000

1,000

1,000

100

1,000

100

10

1

1

1,000

1

10

1

100

100

10

1,000

100

1,000

1,000

1,000

1,000

1,000

1,000

1,000



Xenon-131m

Xenon-133m

Xenon-133

Xenon-135m

Xenon-135

Xenon-138

Cesium-125

Cesium-127

Cesium-129

Cesium-130

Cesium-131

Cesium-132

Cesium-134m

Cesium-134

Cesium-135m

Cesium-135

Cesium-136

Cesium-137

Cesium-138

Barium-126

Barium-128

Barium-131m

Barium-131

Barium-133m

Barium-133

Barium-135m

Barium-139

Barium-140

Barium-141

Barium-142

Lanthanum-131

Lanthanum-132

Lanthanum-135

Lanthanum-137

Lanthanum-138

Lanthanum-140

Lanthanum-141



1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

100

1,000

10

1,000

100

10

10

1,000

1,000

100

1,000

100

100

100

100

1,000

100

1,000

1,000

1,000

100

1,000

10

100

100

100


Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2



Lanthanum-142

Lanthanum-143

Cerium-134

Cerium-135

Cerium-137m

Cerium-137

Cerium-139

Cerium-141

Cerium-143

Cerium-144

Praseodymium-136

Praseodymium-137

Praseodymium-138m

Praseodymium-139

Praseodymium-142m

Praseodymium-142

Praseodymium-143

Praseodymium-144

Praseodymium-145

Praseodymium-147

Neodymium-136

Neodymium-138

Neodymium-139m

Neodymium-139

Neodymium-141

Neodymium-147

Neodymium-149

Neodymium-151

Promethium-141

Promethium-143

Promethium-144

Promethium-145

Promethium-146

Promethium-147

Promethium-148m

Promethium-148

Promethium-149





1,000

1,000

100

100

100

1,000

100

100

100

1

1,000

1,000

1,000

1,000

1,000

100

100

1,000

100

1,000

1,000

100

1,000

1,000

1,000

100

1,000

1,000

1,000

100

10

10

1

10

10

10

100



Promethium-150

Promethium-151

Samarium-141m

Samarium-141

Samarium-142

Samarium-145

Samarium-146

Samarium-147

Samarium-151

Samarium-153

Samarium-155

Samarium-156

Europium-145

Europium-146

Europium-147

Europium-148

Europium-149

Europium-150

(12.62 hours)

Europium-150

(34.2 years)

Europium-152m

Europium-152

Europium-154

Europium-155

Europium-156

Europium-157

Europium-158

Gadolinium-145

Gadolinium-146

Gadolinium-147

Gadolinium-148

Gadolinium-149

Gadolinium-151

Gadolinium-152

Gadolinium-153

Gadolinium-159



1,000

100

1,000

1,000

1,000

100

1

100

10

100

1,000

1,000

100

100

100

10

100



100



1

100

1

1

10

100

100

1,000

1,000

10

100

0.001

100

10

100

10

100


Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2



Terbium-147

Terbium-149

Terbium-150

Terbium-151

Terbium-153

Terbium-154

Terbium-155

Terbium-156m

(5.0 hours)

Terbium-156m

(24.4 hours)

Terbium-156

Terbium-157

Terbium-158

Terbium-160

Terbium-161

Dysprosium-155

Dysprosium-157

Dysprosium-159

Dysprosium-165

Dysprosium-166

Holmium-155

Holmium-157

Holmium-159

Holmium-161

Holmium-162m

Holmium-162

Holmium-164m

Holmium-164

Holmium-166m

Holmium-166

Holmium-167

Erbium-161

Erbium-165

Erbium-169

Erbium-171

Erbium-172



1,000

100

1,000

100

1,000

100

1,000



1,000



1,000

100

10

1

10

100

1,000

1,000

100

1,000

100

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1

100

1,000

1,000

1,000

100

100

100



Thulium-162

Thulium-166

Thulium-167

Thulium-170

Thulium-171

Thulium-172

Thulium-173

Thulium-175

Ytterbium-162

Ytterbium-166

Ytterbium-167

Ytterbium-169

Ytterbium-175

Ytterbium-177

Ytterbium-178

Lutetium-169

Lutetium-170

Lutetium-171

Lutetium-172

Lutetium-173

Lutetium-174m

Lutetium-174

Lutetium-176m

Lutetium-176

Lutetium-177m

Lutetium-177

Lutetium-178m

Lutetium-178

Lutetium-179

Hafnium-170

Hafnium-172

Hafnium-173

Hafnium-175

Hafnium-177m

Hafnium-178m

Hafnium-179m

Hafnium-180m



1,000

100

100

10

10

100

100

1,000

1,000

100

1,000

100

100

1,000

1,000

100

100

100

100

10

10

10

1,000

100

10

100

1,000

1,000

1,000

100

1

1,000

100

1,000

0.1

10

1,000


Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2



Hafnium-181

Hafnium-182m

Hafnium-182

Hafnium-183

Hafnium-184

Tantalum-172

Tantalum-173

Tantalum-174

Tantalum-175

Tantalum-176

Tantalum-177

Tantalum-178

Tantalum-179

Tantalum-180m

Tantalum-180

Tantalum-182m

Tantalum-182

Tantalum-183

Tantalum-184

Tantalum-185

Tantalum-186

Tungsten-176

Tungsten-177

Tungsten-178

Tungsten-179

Tungsten-181

Tungsten-185

Tungsten-187

Tungsten-188

Rhenium-177

Rhenium-178

Rhenium-181

Rhenium-182

(12.7 hours)

Rhenium-182

(64.0 hours)

Rhenium-184m



10

1,000

0.1

1,000

100

1,000

1,000

1,000

1,000

100

1,000

1,000

100

1,000

100

1,000

10

100

100

1,000

1,000

1,000

1,000

1,000

1,000

1,000

100

100

10

1,000

1,000

1,000

1,000

100

10



Rhenium-184

Rhenium-186m

Rhenium-186

Rhenium-187

Rhenium-188m

Rhenium-188

Rhenium-189

Osmium-180

Osmium-181

Osmium-182

Osmium-185

Osmium-189m

Osmium-191m

Osmium-191

Osmium-193

Osmium-194

Iridium-182

Iridium-184

Iridium-185

Iridium-186

Iridium-187

Iridium-188

Iridium-189

Iridium-190m

Iridium-190

Iridium-192

(73.8 days)

Iridium-192m

(1.4 minutes)

Iridium-194m

Iridium-194

Iridium-195m

Iridium-195

Platinum-186

Platinum-188

Platinum-189

Platinum-191



100

10

100

1,000

1,000

100

100

1,000

1,000

100

100

1,000

1,000

100

100

1

1,000

1,000

1,000

100

1,000

100

100

1,000

100

1

10

10

100

1,000

1,000

1,000

100

1,000

100


Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2



Platinum-193m

Platinum-193

Platinum-195m

Platinum-197m

Platinum-197

Platinum-199

Platinum-200

Gold-193

Gold-194

Gold-195

Gold-198m

Gold-198

Gold-199

Gold-200m

Gold-200

Gold-201

Mercury-193m

Mercury-193

Mercury-194

Mercury-195m

Mercury-195

Mercury-197m

Mercury-197

Mercury-199m

Mercury-203

Thallium-194m

Thallium-194

Thallium-195

Thallium-197

Thallium-198m

Thallium-198

Thallium-199

Thallium-200

Thallium-201

Thallium-202

Thallium-204

Lead-195m









100

1,000

100

1,000

100

1,000

100

1,000

100

10

100

100

100

100

1,000

1,000

100

1,000

1

100

1,000

100

1,000

1,000

100

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

1,000

100

100

1,000







Lead-198

Lead-199

Lead-200

Lead-201

Lead-202m

Lead-202

Lead-203

Lead-205

Lead-209

Lead-210

Lead-211

Lead-212

Lead-214

Bismuth-200

Bismuth-201

Bismuth-202

Bismuth-203

Bismuth-205

Bismuth-206

Bismuth-207

Bismuth-210m

Bismuth-210

Bismuth-212

Bismuth-213

Bismuth-214

Polonium-203

Polonium-205

Polonium-207

Polonium-210

Astatine-207

Astatine-211

Radon-220

Radon-222

Francium-222

Francium-223

Radium-223

Radium-224





1,000

1,000

100

1,000

1,000

10

1,000

100

1,000

0.01

100

1

100

1,000

1,000

1,000

100

100

100

10

0.1

l

10

10

100

1,000

1,000

1,000

0.1

100

10

1

1

100

100

0.1

0.1




Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2



Radium-225

Radium-226

Radium-227

Radium-228

Actinium-224

Actinium-225

Actinium-226

Actinium-227

Actinium-228

Thorium-226

Thorium-227

Thorium-228

Thorium-229

Thorium-230

Thorium-231

Thorium-232

Thorium-234

Thorium-natural

Protactinium-227

Protactinium-228

Protactinium-230

Protactinium-231

Protactinium-232

Protactinium-233

Protactinium-234

Uranium-230

Uranium-231

Uranium-232

Uranium-233

Uranium-234

Uranium-235

Uranium-236

Uranium-237

Uranium-238

Uranium-239

Uranium-240

Uranium-natural



0.1

0.1

1,000

0.1

1

0.01

0.1

0.001

1

10

0.01

0.001

0.001

0.001

100

100

10

100

10

1

0.1

0.001

1

100

100

0.01

100

0.001

0.001

0.001

0.001

0.001

100

100

1,000

100

100





Neptunium-232

Neptunium-233

Neptunium-234

Neptunium-235

Neptunium-236

(1.15 x 105 years)

Neptunium-236

(22.5 hours)

Neptunium-237

Neptunium-238

Neptunium-239

Neptunium-240

Plutonium-234

Plutonium-235

Plutonium-236

Plutonium-237

Plutonium-238

Plutonium-239

Plutonium-240

Plutonium-241

Plutonium-242

Plutonium-243

Plutonium-244

Plutonium-245

Americium-237

Americium-238

Americium-239

Americium-240

Americium-241

Americium-242m

Americium-242

Americium-243

Americium-244m

Americium-244

Americium-245

Americium-246m







100

1,000

100

100



0.001



1

0.001

10

100

1,000

10

1,000

0.001

100

0.001

0.001

0.001

0.01

0.001

1,000

0.001

100

1,000

100

1,000

100

0.001

0.001

10

0.001

100

10

1,000

1,000




Radionuclide   Quantity
(µCi)2
  Radionuclide   Quantity
(µCi)2

Americium-246

Curium-238

Curium-240

Curium-241

Curium-242

Curium-243

Curium-244

Curium-245

Curium-246

Curium-247

Curium-248

Curium-249

Berkelium-245

Berkelium-246

Berkelium-247

Berkelium-249

Berkelium-250

Californium-244

Californium-246

1,000

100

0.1

1

0.01

0.001

0.001

0.001

0.001

0.001

0.001

1,000

100

100

0.001

0.1

10

100

1

Californium-248

Californium-249

Californium-250

Californium-251

Californium-252

Californium-253

Californium-254

Einsteinium-250

Einsteinium-251

Einsteinium-253

Einsteinium-254m

Einsteinium-254

Fermium-252

Fermium-253

Fermium-254

Fermium-255

Fermium-257

Mendelevium-257

Mendelevium-258

0.01

0.001

0.001

0.001

0.001

0.1

0.001

100

100

0.1

1

0.01

1

1

10

1

0.01

10

0.01

Any alpha-emitting
radionuclide not
listed above or
mixtures of alpha
emitters of unknown
composition
0.001

Any radionuclide
other than alpha-
emitting radionuclides not listed above, or
mixtures of beta
emitters of unknown composition
0.01

Note

1. The quantities listed in this appendix were derived by taking 1/10th of the most restrictive ALI listed in §336.359, Appendix B, Table I, Columns 1 and 2, of this title (relating to Annual Limits on Intake (ALI) and Derived Air Concentrations (DAC) of Radionuclides for Occupational Exposure; Effluent Concentrations; Concentrations for Release to Sanitary Sewerage), rounding to the nearest factor of 10, and arbitrarily constraining the values listed between 0.001 and 1,000 microcuries. Values of 100 microcuries have been assigned for radionuclides having a radioactive half-life in excess of 109 years (except rhenium, 1,000 microcuries) to take into account their low specific activities.

2. To convert microcuries to kilobecquerels, multiply the microcurie value by 37.

Note. For purposes of §336.326(e) of this title (relating to Posting Requirements), §336.329(a)(1) of this title (relating to Exemptions to Labeling Requirements), and §336.350(a) of this title (relating to Reports of Stolen, Lost, or Missing Licensed Radioactive Material) where there is involved a combination of radionuclides in known amounts, the limit for the combination shall be derived as follows: determine, for each radionuclide in the combination, the ratio between the quantity present in the combination and the limit otherwise established for the specific radionuclide when not in combination. The sum of ratios for all radionuclides in the combination may not exceed 1.