Safety and control devices for oil burners and oil-burning appliances - Particular requirements - Part 1: Automatic and semi-automatic valves (ISO/DIS 23553-1:2020); German and English version prEN ISO 23553-1:2020
Safety and control devices for burners and appliances burning gaseous and/or liquid fuels - General requirements; German version EN 13611:2015 + AC 2016— 160 стр.
