Preliminary filters for filtration and venting devices for objects of collective protection. Types, basic parameters and dimensions
NORM herausgegeben am 1.6.1988
Designation standards: STN 77621
Classification mark: 980000
Catalog number: 71999
Note: UNGÜLTIG
Publication date standards: 1.6.1988
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN