Is it permissible for the magnetic door holders to be isolated during the weekly fire alarm test (so they do not release the doors), and instead test the door closers with the weekly fire alarm test once a month (say the first fire alarm test of the month??)

The British standard for magnetic door holders BS 7273-4:2007 Code of practice for the operation of fire protection measures. Actuation of release mechanisms for doors, clearly state that they should be tested weekly. This is to ensure that the magnetic door holders will operate when the fire alarm is operated however, other than premises that operate 24 hours, all fire doors, if not all doors should be closed at the end of business when the premises is empty.

Thank you Tom. Very useful information