BS 5446: fire detection & alarm devices for dwellings

BS 5446-2:2003 - Specification for heat alarms

BS 5446-3:2005 - Specification for smoke alarm kits for deaf and hard of hearing people

BS EN 14604:2005 -  Smoke alarm devices

BS 5446-3:2015 - Detection and alarm devices for dwellings. Specification for fire alarm and carbon monoxide alarm systems for deaf and hard of hearing people