by using a detection device for specific gases, e.g. combustion products, produced by the fire

Introduced: January 1990

Last revised: January 2006

Full Title

Fire alarms; Alarms responsive to explosion > Actuation by presence of smoke or gases > by using a detection device for specific gases, e.g. combustion products, produced by the fire

Classification Context

Section:: PHYSICS
Class:: SIGNALLING
Subclass:: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS