Table 8.
CASTLE Maximum Permissible Limits for radiation expasure4.
Personne]
Skin
0.001 R/hr (about 1,000 CPM)
30 rep (8) for the operational
Hands
period
Clothing
Outer clothing
0.007 R/hr
Under clothing
0.002 R/hr
Vehicles and equipment
Vehicles,
interior surfaces
0.007 R/hr (B and y)
Vehicles, exterior surfaces
0.007 R/hr (y only measured at
5 to 6 inches; 13 to 15 cm)
Ships and boats, fixed alpha
2,500 DPM/150 cm2 for enclosed
areas
5,000 DPM/150 cm2 for open
surfaces
Ships and boats, final clearance
0.015 R/day (= 0.0006 R/hr) (no a)
Aircraft, cloud tracking
3.0 R/hr
Aircraft, occupied section
0.007 R/hr
Respirators, interior surfaces
0.002 R/hr
Air
Particles smaller than 5 microns
10-6 pCi/cc (8 and y 24-hr average)
Particles larger than 5 microns
10-4 wCi/cc (8 and y 24-hr average)
Total
5 x 10-12 uci/ce (a only)
Water (potable)
5 x 10-3 yCi/ec (8 and y calculated
at 3 days after burst)
10-7 wCi/ec (a only)
Note:
The acronyms CPM, rep, and DPM are defined in the glossary (Appendix B).
Source:
Reference 19, Annex I.