Iso 146443pdf

：一般要求ISO Class 7环境，需要验证空气洁净度和细菌过滤效率。

Measures the cleanroom's ability to remove particles and return to its specified cleanliness state after a spike in contamination. iso 146443pdf

ISO 14644-3:2019, Second Edition: Cleanrooms and associated controlled environments - Part 3: Test methods iso 146443pdf

Measures the air velocity in unidirectional flow or airflow volume in non-unidirectional flow to ensure adequate exchange rates. iso 146443pdf

Performance tests are specified for two types of in three possible occupancy states: as-built, at-rest and operational. iTeh Standards ISO 14644-3 Metrology & Test Methods | PDF - Scribd