Ala. Admin. Code 420, ch. 420-3-26, 420-3-26-.02, sch. C
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).
1/ Values are given in Column I only for those materials normally used as gases.
2/ µCi/g for solids.
Ala. Admin. Code 420, ch. 420-3-26, 420-3-26-.02, sch. C