In order to reduce the risk, current UK flask wagons are fitted with a lockable cover to ensure any surface contamination remains within the container, and all containers are tested before shipment, with those exceeding the safety level being cleaned until they are within the limit. A report in 2001 identified potential risks, and actions to be taken to ensure safety.
To prevent harm, current UK flask wagons have secure covers to keep surface contamination inside the container, and all containers undergo testing prior to dispatch, with those exceeding safety thresholds being cleaned until they meet the standards. A 2001 report identified possible risks and proposed measures to guarantee safety.