
Air filters for general ventilation — Part 4: Conditioning method to determine the minimum fractional test efficiency
NORMA vydaná dňa 29.7.2022
Designation standards: ISO 16890-4:2022-ed.2.0
Publication date standards: 29.7.2022
The number of pages: 11
Approximate weight : 33 g (0.07 lbs)
Country: International technical standard
Kategória: Technické normy ISO