Iso 14644 1 Cleanroom Standards Table

Only particle populations having cumulative distributions based on threshold lower limit particle sizes ranging from 0 1 µm to 5 µm are considered for classification purposes. The iso 14644 1 2015 introduces the need of iso 21501 4 particle counters which assure all cleanroom certification is based on verified data accuracy and reliability. This table details the recommended air changes per hour for iso 14644 1 2015 cleanrooms and their associated gmp grade and federal standard.

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