Fire detection and alarm systems -- Part 23: Visual alarm devices
ISO 7240-23:2013 specifies visual alarm devices for three types of application environment.
It is only applicable to pulsing or flashing visual alarm devices, for example xenon beacons or rotating beacons. It is not applicable to devices giving continuous light output.
ISO 7240-23:2013 is not intended to cover visual indicators, for example, on detectors or on the control and indicating equipment.