WAC 246-232-130
WAC 246-232-130. Schedule C, exempt concentrations
(See WAC 246-232-010 (1).)
Element (atomic number) Radionuclide 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 (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 (59) Pr-142 3x10 -4 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 (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 or gamma emitting radioactive material not listed above with half-life less than three years 1x10 -10 1x10 -6
Element (atomic
number)
Radionuclide
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 (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 (59)
Pr-142
3x10 -4
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
(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 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
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 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).
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: Concentration of Nuclide A in Product Exempt concentration of Nuclide A + Concentration of Nuclide B in Product Exempt concentration of Nuclide B ≤ 1
Example:
Concentration of Nuclide A in Product
Exempt concentration of Nuclide A
+
Concentration of Nuclide B in Product
Exempt concentration of Nuclide B
≤ 1
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.
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.