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PDFWAC 246-232-130

Schedule C, exempt concentrations.

(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 (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 3 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:
 
 
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.
[Statutory Authority: RCW 70.98.050 and 70.98.110. WSR 16-13-054, § 246-232-130, filed 6/10/16, effective 7/11/16. Statutory Authority: RCW 70.98.050. WSR 13-24-025, § 246-232-130, filed 11/22/13, effective 12/23/13; WSR 01-02-068, § 246-232-130, filed 12/29/00, effective 1/29/01. Statutory Authority: RCW 70.98.050 and 70.98.080. WSR 91-15-112 (Order 184), § 246-232-130, filed 7/24/91, effective 8/24/91. Statutory Authority: RCW 43.70.040. WSR 91-02-049 (Order 121), recodified as § 246-232-130, filed 12/27/90, effective 1/31/91. Statutory Authority: RCW 70.98.080. WSR 87-01-031 (Order 2450), § 402-19-580, filed 12/11/86; WSR 83-19-050 (Order 2026), § 402-19-580, filed 9/16/83; WSR 79-12-073 (Order 1459), § 402-19-580, filed 11/30/79, effective 1/1/80. Formerly WAC 402-20-250.]
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