This Clause of [A1_start] EN 50194‑1 [A1_end] is replaced by:

This European Standard specifies test methods and performance requirements for electrical apparatus for the detection of combustible gases designed for continuous operation in a fixed installation in recreational vehicles and similar premises

This standard specifies apparatus designed to operate in the event of an escape of liquefied petroleum gas (LPG) and/or petrol (gasoline) vapour and to provide a visual and audible alarm and an executive action in the form of an output signal that can actuate directly or indirectly a shut-off device and/or other ancillary device (Type A of [A1_start]EN 50194‑1[A1_end])

The standard excludes apparatus for the detection of toxic gases such as carbon monoxide (see EN 50291).

Apparatus complying with this standard is not considered suitable for industrial or commercial installations for which [A1_start]EN 60079‑29‑1[A1_end] apply