Refrigerating systems and heat pumps - Valves - Requirements, testing and marking - Amendment 1 (ISO 21922:2021/Amd 1:2024)
NORM herausgegeben am 10.9.2025
Designation standards: UNE-EN ISO 21922:2022/A1:2025
Note: Änderung
Publication date standards: 10.9.2025
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE