Washington Administrative Code › Title 246 - Health, Department of › RADIATION › Chapter 246-232 - Radioactive material - Licensing applicability › SCHEDULES › Section 246-232-130 - Schedule C, exempt concentrations

Current through Register Vol. 24-14, July 15, 2024
(See WAC
					 246-232-010(1).)
Element (atomic number)
Radionuclide
Column I Gas concentration
								µCi/ml1
Column II Liquid and solid concentration
								µCi/ml2
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 (24)
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-169
9x10-4
Er-171
1x10-3
Europium (63)
Eu-152 (9.2 h)
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
Iodine (53)
I-125
3x10-9
2x10-5
I-126
3x10-9
2x10-5
I-131
3x10-9
2x10-5
I-132
8x10-8
6x10-4
I-133
1x10-8
7x10-5
I-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 (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
Pr-142
3x10-4
(59)
Pr-143
5x10-4
Promethium (61)
Pm-147
2x10-3
Pm-149
4x10-4
Radium (88)
Ra-226
1x10-7
Ra-228
3x10-7
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
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
W-181
-3
(Wolfram) (74)
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 or gamma emitting radioactive material not
								listed above with half-life less than three years
1x10-10
1x10-6
Notes:
1 Values are given in
								Column I only for those materials normally used as gases
2
														µCi/gm for
								solids
Note 1:
Many radionuclides decay into nuclides which are
								also radioactive. In expressing the concentrations in Schedule C the activity
								stated is that of the parent nuclide and takes into account the
								daughters.
Note 2:
For purposes of WAC
								246-232-010(1) where there is involved a combination of nuclides, the limit for the
								combination should be derived as follows: Determine for each nuclide in the
								product the ratio between the concentration present in the product and the
								exempt concentration established in Schedule C for the specific nuclide when
								not in combination. The sum of such ratios may not exceed "1" (i.e.,
								unity).
Example:
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					 image
Note 3:
For the purpose of determining concentration in a
								product or device, the total quantity of radioactive material present is
								divided by only that weight or volume of the discrete part or component
								throughout which the radioactive material is relatively uniformly distributed.
								If the weight or volume of this part or component cannot be determined then the
								product or device should be evaluated on the basis of the total quantity of
								radioactive material present.
Statutory Authority:
						RCW
						   70.98.050. 01-02-068, § 246-232-130,
						filed 12/29/00, effective 1/29/01. Statutory Authority:
						RCW
						   70.98.050 and
						70.98.080. 91-15-112 (Order 184),
						§ 246-232-130, filed 7/24/91, effective 8/24/91. Statutory Authority:
						RCW
						   43.70.040. 91-02-049 (Order 121), recodified
						as § 246-232-130, filed 12/27/90, effective 1/31/91. Statutory Authority:
						RCW
						   70.98.080. 87-01-031 (Order 2450), §
						402-19-580, filed 12/11/86; 83-19-050 (Order 2026), § 402-19-580, filed
						9/16/83; 79-12-073 (Order 1459), § 402-19-580, filed 11/30/79, effective
						1/1/80. Formerly WAC 402-20-250.