Alabama Administrative Code › Title 420 - ALABAMA STATE BOARD OF HEALTH › Chapter 420-3-26 - RADIATION CONTROL › Section 420-3-26-.02 - Licensing › Schedule C - EXEMPT CONCENTRATIONS

Current through Register Vol. 42, No. 9, June 28, 2024
Element (atomic number)
Isotope
Column I Gas concentration µCi/ml
1
/
Column II Liquid and solid concentration
								µCi/ml
2
/
Antimony (51)
Sb-122
3x10-4
Sb-124
2x10-4
Sb-125
1x10-3
Argon (18)
Ar-37
1x10-3
Ar-41
4x10-7
Arsenic (33)
As-73
5x10-3
As-74
5x10-4
As-76
2x10-4
As-77
8x10-4
Barium (56)
Ba-131
2x10-3
Ba-140
3x10-4
Beryllium (4)
Be-7
2x10-2
Bismuth (83)
Bi-206
4x10-4
Bromine (35)
Br-82
4x10-7
3x10-3
Cadmium (48)
Cd-109
2x10-3
Cd-115m
3x10-4
Cd-115
3x10-4
Calcium (20)
Ca-45
9x10-5
Ca-47
5x10-4
Carbon (6)
C-14
1x10-6
8x10-3
Cerium (58)
Ce-141
9x10-4
Ce-143
4x10-4
Ce-144
1x10-4
Cesium (55)
Cs-131
2x10-2
Cs-134m
6x10-2
Cs-134
9x10-5
Chlorine (17)
Cl-38
9x10-7
4x10-3
Chromium (2 4)
Cr-51
2x10-2
Cobalt (27)
Co-57
5x10-3
Co-58
1x10-3
Co-60
5x10-4
Copper (29)
Cu-64
3x10-3
Dysprosium (66)
Dy-165
4x10-3
Dy-166
4x10-4
Erbium (68)
Er-69
9x10-4
Er-171
1x10-3
Europium (63)
Eu-152 (.2h)
6x10-4
Eu-155
2x10-3
Fluorine (9)
F-18
2x10-6
8x10-3
Gadolinium (64)
Gd-153
2x10-3
Gd-159
8x10-4
Gallium (31)
Ga-72
4x10-4
Germanium (32)
Ge-71
2x10-2
Gold (79)
Au-196
2x10-3
Au-198
5x10-4
Au-199
2x10-3
Hafnium (72)
Hf-181
7x10-4
Hydrogen (1)
H-3
5x10-6
3x10-2
Indium (49)
In-113m
1x10-2
In-114m
2x10-4
1
/ Values are given in Column I only
				  for those materials normally used as gases.
2
/ µCi/g for solids.
Iodine (53)
1-126
3x10-9
2x10-5
1-131
3x10-9
2x10-5
1-132
8x10-8
6x10-4
1-133
1x10-8
7x10-5
1-134
2x10-7
1x10-3
Iridium (77)
Ir-190
2x10-3
Ir-192
4x10-4
Ir-194
3x10-4
Iron (26)
Fe-55
8x10-3
Fe-59
6x10-4
Krypton (36)
Kr-85m
1x10-6
Kr-85
3x10-6
Lanthanum (57)
La-140
2x10-4
Lead (82)
Pb-203
4x10-3
Lutetium (71)
Lu-177
1x10-3
Manganese (25)
Mn-52
3x10-4
Mn-54
1x10-3
Mn-56
1x10-3
Mercury (80)
Hg-197m
2x10-3
Hg-197
3x10-3
Hg-203
2x10-4
Molybdenum (42)
Mo-99
2x10-3
Neodymium (60)
Nd-147
6x10-4
Nd-149
3x10-3
Nickel (28)
Ni-65
1x10-3
Niobium (Columbium) (41)
Nb-95
1x10-3
Nb-97
9x10-3
Osmium (76)
Os-185
7x10-4
Os-191m
3x10-2
Os-191
2x10-3
Os-193
6x10-4
Palladium (46)
Pd-103
3x10-3
Pd-109
9x10-4
Phosphorus (15)
P-32
2x10-4
Platinum (78)
Pt-191
1x10-3
Pt-193m
1x10-2
Pt-197m
1x10-2
Pt-197
1x10-3
Potassium (19)
K-42
3x10-3
Praseodymium (59)
Pr-142
3x10-4
Pr-143
5x10-4
Promethium (61)
Pm-147
2x10-3
Pm-149
4x10-4
Rhenium (75)
Re-183
6x10-3
Re-186
9x10-4
Re-188
6x10-4
Rhodium (45)
Rh-103m
1x10-1
Rh-105
1x10-3
Rubidium (37)
Rb-86
7x10-4
Ruthenium (44)
Ru-97
4x10-3
Ru-103
8x10-4
Ru-105
1x10-3
Ru-106
1x10-4
Samarium (62)
Sm-153
8x10-4
Scandium (21)
Sc-46
4x10-4
Sc-47
9x10-4
Sc-48
3x10-4
Selenium (34)
Se-75
3x10-3
1
/ Values are given in Column I only
				  for those materials normally used as gases.
2
/ µCi/g for solids.
Silicon (14)
Si-31
9x10-3
Silver (47)
Ag-105
1x10-3
Ag-110m
3x10-4
Ag-111
4x10-4
Sodium (11)
Na-24
2x10-3
Strontium (38)
Sr-85
1x10-3
Sr-89
1x10-4
Sr-91
7x10-4
Sr-92
7x10-4
Sulfur (16)
S-35
9x10-8
6x10-4
Tantalum (73)
Ta-182
4x10-4
Technetium (43)
Tc-96m
1x10-1
Tc-96
1x10-3
Tellurium (52)
Te-125m
2x10-3
Te-127m
6x10-4
Te-127
3x10-3
Te-129m
3x10-4
Te-131m
6x10-4
Te-132
3x10-4
Terbium (65)
Tb-160
4x10-4
Thallium (81)
Tl-200
4x10-3
Tl-201
3x10-3
Tl-202
1x10-3
Tl-204
1x10-3
Thulium (69)
Tm-170
5x10-4
Tm-171
5x10-3
Tin (50)
Sn-113
9x10-4
Sn-125
2x10-4
Tungsten (Wolfram) (74)
W-181
4x10-3
W-187
7x10-4
Vanadium (23)
V-48
3x10-4
Xenon (54)
Xe-131m
4x10-6
Xe-133
3x10-6
Xe-135
1x10-6
Ytterbium (70)
Yb-175
1x10-3
Yttrium (39)
Y-90
2x10-4
Y-91m
3x10-2
Y-91
3x10-4
Y-92
6x10-4
Y-93
3x10-4
Zinc (30)
Zn-65
1x10-3
Zn-69m
7x10-4
Zn-69
2x10-2
Zirconium (40)
Zr-95
6x10-4
Zr-97
2x10-4
Beta- and/or gamma emitting radioactive material
								not listed above with half-life of less than 3 years.
1x10-10
1x10-6
NOTE 1: Many radioisotopes disintegrate into isotopes which
				  are also radioactive. In expressing the concentrations in Schedule C, the
				  activity stated is that of the parent isotope and takes into account the
				  daughters.
1
/ Values are given in Column I only
				  for those materials normally used as gases.
2
/ µCi/g for solids.
Element (atomic number)
Isotope
Column I Gas concentration µCi/ml
1
/
Column IILiquid and solid concentration
							 µCi/ml
2
/
NOTE 2: For purposes of
				  420-3-26-.02(4) 
				  where there is involved a combination of isotopes, the limit for the
				  combination should be derived as follows: Determine for each isotope in the
				  product the ratio between the concentrations present in the product and the
				  exempt concentration established in Schedule C for the specific isotope when
				  not in combination. The sum of such ratios may not exceed "1" (i.e.,
				  unity).
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1
/ Values are given in Column I only
				  for those materials normally used as gases.
2
/ µCi/g for solids.