This International Standard specifies the minimum requirements for rubber hoses and hose assemblies for use in oil burners. Two types of hose assembly are specified: -- Type 1: Hose assemblies for flux and reflux, but not for insertion between the oil burner pump and the atomizing connection; maximum working pressure 1,0 MPa (10 bar); maximum oil temperature 100 °C. -- Type 2: Hose assemblies for insertion between the oil burner pump and the atomizing connection; working pressure 4,0 MPa (40 bar); maximum oil temperature 100 °C. NOTE 1. The hose assemblies specified in this international Standard should not be used, without special assessment, for purposes other than oil burner installations.