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