ISO 16890-4:2016現行
Air filters for general ventilation Part 4: Conditioning method to determine the minimum fractional test efficiency
出版：International Organization for Standardization
專家解讀視頻
This part of ISO 16890 establishes a conditioning method to determine the minimum fractional test efficiency.
NS EN ISO 16890-4 : 2016 - Identical
PN EN ISO 16890-4 : 2017 - Identical
SN EN ISO 16890-4 : 2017 - Identical
NEN EN ISO 16890-4 : 2016 - Identical
DS EN ISO 16890-4 : 2016 - Identical
UNI EN ISO 16890-4 : 2017 - Identical
