
Tracked Changes. Refrigerating systems and heat pumps. Valves. Requirements, testing and marking.
STANDARD published on 10.12.2021
Designation standards: BS EN ISO 21922:2021-TC
Note: WITHDRAWN
Publication date standards: 10.12.2021
The number of pages: 268
Approximate weight : 835 g (1.84 lbs)
Country: British technical standard
Category: Technical standards BS