If any mechanical part of a Fume Cupboard has been worked on the DS must carry out an air flow test to ensure the Fume Cupboard is working effectively before permitting its use. All permit issuers must be made aware of and follow this Code of Practice. Estates MUST provide adequate notice for roof access other than in an Emergency Situation. In an Emergency Situation a Red Permit MUST still be obtained before accessing the roof. All DS's should have a system of response for Emergency Situations.
Permits are valid for the day of issue only.
If work is carried over for more than one day then a new permit must be issued every day. Access to roofs, especially red areas, must be very strictly controlled. Any transgression from procedures will be a disciplinary offence for University staff and may mean that contractors are removed from the University approved list. When a fumecupboard needs to be disabled to enable work to be carried out, this should be done, whenever practicable, by electrical means. Fuses must only be removed by University electricians, and thereafter be carried by the person doing the maintenance work, until the repair is completed.