This European Standard defines the minimum requirements for flame arresters fitted to tanks for the transport of dangerous goods. This European Standard specifies the place of installation and performance requirements for the flame arresters to be installed. It also specifies the tests necessary to verify the compliance of the equipment with this European Standard. The equipment specified by this European Standard is suitable for use with liquid petroleum products and other dangerous substances of Class 3 of ADR which have a vapour pressure not exceeding 110 kPa at 50 °C and petrol, and which have no subclassification as toxic or corrosive. Emergency pressure relief valves in accordance with EN 14596 are excluded from the requirements of this European Standard.