10 C.F.R. § 34.21 Limits on external radiation levels from storage containers and source changers.
Title 10 - Energy
The maximum exposure rate limits for storage containers and source changers are 2 millisieverts (200 millirem) per hour at any exterior surface, and 0.1 millisieverts (10 millirem) per hour at 1 meter from any exterior surface with the sealed source in the shielded position.
Title 10: Energy
PART 34—LICENSES FOR INDUSTRIAL RADIOGRAPHY AND RADIATION SAFETY REQUIREMENTS FOR INDUSTRIAL RADIOGRAPHIC OPERATIONS
Subpart C—Equipment
§ 34.21 Limits on external radiation levels from storage containers and source changers.
