Title 10
PART 835 APPENDIX D
Appendix D to Part 835 - Surface Contamination Values
10:4.0.2.5.28.14.74.5.24 : Appendix D
Appendix D to Part 835 - Surface Contamination ValuesThe data presented in appendix D are to be used in identifying the need for posting of contamination and high contamination areas in accordance with § 835.603(e) and (f) and identifying the need for surface contamination monitoring and control in accordance with §§ 835.1101 and 835.1102.
Surface Contamination Values 1 in dpm/100 cm 2
Radionuclide | Removable 2 4 | Total (Fixed + Removable) 2 3 |
---|---|---|
U-nat, U-235, U-238, and associated decay products | 7 1,000 | 7 5,000 |
Transuranics, Ra-226, Ra-228, Th-230, Th-228, Pa-231, Ac-227, I-125, I-129 | 20 | 500 |
Th-nat, Th-232, Sr-90, Ra-223, Ra-224, U-232, I-126, I-131, I-133 | 200 | 1,000 |
Beta-gamma emitters (nuclides with decay modes other than alpha emission or spontaneous fission) except Sr-90 and others noted above 5 | 1,000 | 5,000 |
Tritium and STCs 6 | 10,000 | See Footnote 6 |