Refrigerating systems and heat pumps - Valves - Requirements, testing and marking (ISO 21922:2021)
NORM herausgegeben am 1.4.2025
Designation standards: STN EN ISO 21922:2022/A1
Classification mark: 142030
Catalog number: 140151
Note: Änderung
Publication date standards: 1.4.2025
Approximate weight : 30 g (0.07 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN