
Air filters for general ventilation. Conditioning method to determine the minimum fractional test efficiency.
NORM herausgegeben am 31.3.2017
Designation standards: BS EN ISO 16890-4:2016
Note: UNGÜLTIG
Publication date standards: 31.3.2017
The number of pages: 22
Approximate weight : 66 g (0.15 lbs)
Country: British technical standard
Kategorie: Technische Normen BS