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Register April 2010 No. 652
Chapter DHS 157
APPENDIX P
Quantities of Radioactive Materials Requiring Consideration of the
Need for a Contingency Plan for Responding to a Release
Radioactive Material1/   Release Fraction   Quantity (GBq)   Quantity (Ci)
Actinium-228   0.001   148,000   4,000
Americium-241   0.001   74   2
Americium-242   0.001   74   2
Americium-243   0.001   74   2
Antimony-124   0.01   148,000   4,000
Antimony-126   0.01   222,000   6,000
Barium-133   0.01   370,000   10,000
Barium-140   0.01   1,110,000   30,000
Bismuth-207   0.01   185,000   5,000
Bismuth-210   0.01   22,200   600
Cadmium-109   0.01   37,000   1,000
Cadmium-113   0.01   2,960   80
Calcium-45   0.01   740,000   20,000
Californium-252   0.001   333   9 (20 mg)
Carbon-14 (Non-CO2)   0.01   1,850,000   50,000
Cerium-141   0.01   370,000   10,000
Cerium-144   0.01   11,100   300
Cesium-134   0.01   74,000   2,000
Cesium-137   0.01   111,000   3,000
Chlorine-36   0.5   3,700   100
Chromium-51   0.01   11,100,000   300,000
Cobalt-60   0.001   185,000   5,000
Copper-64   0.01   7,400,000   200,000
Curium-242   0.001   2,220   60
Curium-243   0.001   110   3
Curium-244   0.001   148   4
Curium-245   0.001   74   2
Europium-152   0.01   18,500   500
Europium-154   0.01   14,800   400
Europium-155   0.01   111,000   3,000
Gadolinium-153   0.01   185,000   5,000
Germanium-68   0.01   74,000   2,000
Gold-198   0.01   1,110,000   30,000
Hafnium-172   0.01   14,800   400
Hafnium-181   0.01   259,000   7,000
Holmium-166m   0.01   3,700   100
Hydrogen-3   0.5   740,000   20,000
Indium-114m   0.01   37,000   1,000
Iodine-125   0.5   370   10
Iodine-131   0.5   370   10
Iridium-192   0.001   1,480,000   40,000
Iron-55   0.01   1,480,000   40,000
Iron-59   0.01   259,000   7,000
Krypton-85   1.0   222,000,000   6,000,000
Lead-210   0.01   296   8
Manganese-56   0.01   2,220,000   60,000
Radioactive Material1/   Release Fraction   Quantity (GBq)   Quantity (Ci)
Mercury-203   0.01   370,000   10,000
Molybdenum-99   0.01   1,110,000   30,000
Neptunium-237   0.001   74   2
Nickel-63   0.01   740,000   20,000
Niobium-94   0.01   11,100   300
Phosphorus-32   0.5   3,700   100
Phosphorus-33   0.5   37,000   1,000
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.