WAC 246-232-130: Schedule C, exempt concentrations.

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WACs > Title 246 > Chapter 246-232 > Section 246-232-130

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246-232-120 << 246-232-130 >> 246-232-140

WAC 246-232-130	No agency filings affecting this section since 2003
Schedule C, exempt concentrations.

(See WAC 246-232-010(1).)

Element (atomic number)	Isotope	Column I Gas con- centra- tion µCi/ml¹	Column II Liquid and solid concen- tration 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		6x10^-4
	(9.2 h)
	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)	And-147		6x10^-4
	And-149		3x10^-3
Nickel (28)	Ni-65		1x10^-3
Niobium (Columbium)(41)	Nb-95		1x10^-3
	Nb-97		9x10^-3
Osmium (76)	So-185		7x10^-4
	So-191m		3x10^-2
	So-191		2x10^-3
	So-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	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)	Is-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 less than 3 years		1x10^-10	1x10^-6

Notes:	¹Values are given in Column I only for those materials normally used as gases
	²µCi/gm for solids

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.

Note 2:

For purposes of WAC 246-232-010(1) 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 concentration 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).

Example:
	Concentration of Isotope A in Product
	Exempt concentration of Isotope A
	+
	Concentration of Isotope B in Product
	Exempt concentration of Isotope 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. 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.]