Typically, no ferromagnetic materials are allowed in zone IV. With careful planning and approval, exceptions may be made to this rule.
Before all experiments, a plan document must be made and approved. Here is a template, and here is an example for the Lerner MR facility. You can edit the PDF to show your plan however you wish, as long as it is clear what you plan to do.
Once you have made the plan bring it to the safety officer for review. It must then be approved before every experiment by the study PI, and signed by two level II trained personnel after completion.
Some guidelines for a useful plan:
- Number each object which will be moved into zone IV
- Before moving anything, and after the time-out procedure, mark the locations in the room for each object with tape
- Mark a tape line at a boundary lower than 5 Gauss field strength to never cross with magnetic material
- Follow a specific order for bringing objects into the room
- On completion, after removing the objects, remove the tape marking their locations to ensure you don’t forget anything
- Save the signed and dated plan in your records and send a copy to the safety officer