Plastics piping systems for the supply of gaseous fuels - Unplasticized polyamide (PA-U) piping systems with fusion jointing and mechanical jointing - Part 7: Assessment of conformity (ISO/TS 16486-7:2023); German version CEN ISO/TS 16486-7:2023
Deutsches Institut Fur Normung E.V. (German National Standard) , 12/01/2023
