Table 7 Radioactive Surface Contamination Limits

Application Alpha (dpm/100cm2) Beta/Gamma1
Total Removable Total (mR/hr) Removable (dpm/100cm2)
Controlled area        
Basic guide 25,000 Max.

5,000 Av.

500 1.0 5,000
Clean area 1,000 100 0.5 1,000
Non-controlled area        
Skin, personal clothing 500 N.D.2 0.1 N.D.2
Release of material or facilities 2,500 (Max.)

500 (Av.)

100 0.2 1,000

1 Measured at 1 cm from the surface.

2 N.D.-non-detectable.