ISO 7235 : 2003(R2018)现行
ACOUSTICS - LABORATORY MEASUREMENT PROCEDURES FOR DUCTED SILENCERS AND AIR-TERMINAL UNITS - INSERTION LOSS, FLOW NOISE AND TOTAL PRESSURE LOSS
出版：International Organization for Standardization
专家解读视频
Describes the methods for determining: - the insertion loss, in frequency bands, of ducted silencers with and without airflow; - the sound power level, in frequency bands, of the flow noise (or regenerated sound) generated by ducted silencers; - the total pressure loss of silencers with airflow; and - the transmission loss, in frequency bands, of air-terminal units.
NBN ISO 7235 : 1992 - Identical
PN EN ISO 7235 : 2009 - Identical
DS EN ISO 7235 : 2009 - Identical
