ISO/DIS 7235被替代
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
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基本信息
標準編號： ISO/DIS 7235
標準類別：Draft
出版單位：International Organization for Standardization
標準頁數：0
標準簡介
Describes 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 low noise (or regenerated sound) generated by ducted silencers; the total pressure loss of silencers with air flow; and the transmission loss in frequency bands, of air-terminal units.
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