Refrigerating systems and heat pumps - Valves - Requirements, testing and marking (ISO 21922:2021)
STANDARD published on 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
Category: Technical standards STN