2022UNE-EN 203-1:2022 Gas heated catering equipment - Part 1: General safety requirements
2016UNE-EN 203-1:2014/AC:2016 Fixed capacitors for use in electronic equipment - Part 14: Sectional specification - Fixed capacitors for electromagnetic interference suppression and connection to the supply mains (Endorsed by AENOR in June of 2016.)
2014UNE-EN 203-1:2014 Gas heated catering equipment - Part 1: General safety rules