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Page Title:
Table 2-4 Criteria for Posting Contamination, High Contamination, and Airborne Radioactivity Areas |
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|  DOE-STD-1098-99
Radiological Control
Radiological Standards
March 2005
Table 2-4 Criteria for Posting Contamination, High Contamination, and Airborne Radioactivity Areas
AREA
CRITERIA
REQUIRED
SUPPLEMENTAL
POSTING
POSTING
"CAUTION,
"RWP AND PROTECTIVE
Removable contamination
Contamination
levels (dpm/100 cm2)
CONTAMINATION
CLOTHING REQUIRED
Area
> Table 2-2 values1 but ≤
AREA"
FOR ENTRY"
[see 835.603(e)]
100 x Table 2-2 values
"CAUTION" or
"RWP AND PROTECTIVE
Removable contamination
High
levels (dpm/100 cm2) > 100
"DANGER," "HIGH
CLOTHING REQUIRED
Contamination
x Table 2-2 values1
CONTAMINATION
FOR ENTRY"
Area
AREA"
[see 835.603(f)]
"CAUTION" or
Airborne concentrations
"RWP AND PROTECTIVE
Airborne
"DANGER,"
(Ci/ml) above background:
CLOTHING REQUIRED
AIRBORNE
1) are > the applicable DAC
FOR ENTRY"
Area
values1; or 2) could result in
RADIOACTIVITY
an individual (w/o respirator)
AREA"
receiving an intake > 12
[see 835.603(d)]
DAC-hrs in a week
1
Levels exceed or are likely to exceed the listed values
236 Posting Radioactive Material Areas
1.
Accessible areas where items or containers of radioactive material in quantities exceeding the values provided in
Appendix 4A are used, handled, or stored shall be posted "CAUTION, RADIOACTIVE MATERIAL" [see
835.603(g)].
2.
Radioactive material areas shall be located within controlled areas [see 835.(2)(a), radioactive material area].
3.
Radioactive material areas may be excepted from the posting requirements when:
a.
The area is posted as a radiological area in accordance with Article 234 or 235 [see 835.604(b)(1)]; or
b.
Each item or container of radioactive material in the area is clearly labeled to warn individuals of the hazards
[see 835.604(b)(2)]; or
c.
The radioactive material of concern consists solely of structures or installed components which have been
d.
The area contains only packages of radioactive material received from radioactive material transportation
while awaiting monitoring in accordance with Articles 552 and 554 [see 835.604(c)]; or
2-16
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