MAINTENANCE PROCESS

RADIATION CLEANLINESS

NCT’s radiation testing area

Step 1: The container is cleaned of radiation

• The container arrives at the NCT site by truck
• The initial dose rate measured <must be < 5µSv/h
• A second surface test is carried out by performing a swipe test on the four ISO container corners

If the results are under the maximum permitted values:

– The truck is allowed to leave
– The container is given a red label
– The container is temporarily stored in the allocated area before its level of internal contamination is tested

STep 2: The container enters the metalwork/painting area BEFORE >& AFTER

• The components are checked
• Any faulty components are repaired or replaced with the same components, which comply with the original parts
• Once ready, the container is given a green label and moved to a storage area before shipment
• In this area, containers are organized by type

Examples:
– Drum containers
– Big bag containers
– Crate containers

Step 3: Shipment

• The container leaves the storage area
• A final visual check of the container’s interior is made to:
  • Ensure there is no moisture
  • Check the accessories and components requested by the customer are present
    • E.g. nets for drum containers
• The container is sealed
• he container is loaded onto the truck for transport to the nuclear power plant