Appliances shall be so designed and constructed that gas release at any state of operation is limited in order to avoid a dangerous accumulation of unburned gas in the appliance.
Dearfar agus déanfar fearais amhlaidh ionas go dteorainneofar scaoileadh gáis ag aon chéim oibríochta d'fhonn carnadh contúirteach gáis neamhdhóite san fhearas a sheachaint.