DIN EN ISO 23553-1-2014 油燃烧器和燃油器具用安全和控制设备. 详细要求. 第1部分: 自动和半自动阀 (ISO 23553-1-2014); 德文版本EN ISO 23553-1-2014
Safety and control devices for oil burners and oil-burning appliances - Particular requirements - Part 1: Automatic and semi-automatic valves (ISO 23553-1:2014); German version EN ISO 23553-1:2014