
Refrigerating systems and heat pumps - Valves - Requirements, testing and marking (ISO 21922:2021)
NORM herausgegeben am 1.2.2022
    
        Designation standards: STN EN ISO 21922
                Classification mark:  142030
                
                Catalog number:  134241
                
                
               
                Publication date standards:  1.2.2022
        Approximate weight : 60 g (0.13 lbs)
        Country:          Slovak technical standard
        Kategorie: Technische Normen STN