
Air filters for general ventilation - Part 4: Conditioning method to determine the minimum fractional test efficiency (ISO 16890-4:2016)
STANDARD published on 21.6.2017
Designation standards: UNE-EN ISO 16890-4:2017
Note: WITHDRAWN
Publication date standards: 21.6.2017
The number of pages: 21
Approximate weight : 63 g (0.14 lbs)
Country: Spanish technical standard
Category: Technical standards UNE