Working alone with chemicals in the clean room is not permissible. A buddy who is a certified clean room user should be present in the lab with you.

There should be at least one observer in the lab who is aware of the wet chemistry work when it is happening. Additionally, a C14 qualified person must be present on the floor during the time of chemical handling.

Normal hours of operation for the cleanroom are Monday through Friday between 8:00 am and 6:00 pm (unless closed for site holiday). All other hours are considered ‘afterhours’ and require a buddy and a certified C14 user for all processing types.

Other than chemical operations, working alone during normal hours is an acceptable practice providing the worker has been C14 qualified. It is recommended that workers who are alone in the lab have a cell phone on them and maintain regular contact with an individual who is outside of the laboratory.