T/CRAAS 439.2-2022
General ventilation filters -- Part 2: Measurement of gauge efficiency and resistance (English Version)

Standard No.

T/CRAAS 439.2-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

Group Standards of the People's Republic of China

Latest

T/CRAAS 439.2-2022

T/CRAAS 439.2-2022 history

• 2022 T/CRAAS 439.2-2022 General ventilation filters -- Part 2: Measurement of gauge efficiency and resistance