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SS EN ISO 7235 Ed. 3 (2009)现行

Acoustics - Laboratory Measurement Procedures For Ducted Silencers And Air-terminal Units - Insertion Loss, Flow Noise And Total Pressure Loss

出版：Standardiserings-Kommissionen I Sverige

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基本信息

标准编号： SS EN ISO 7235 Ed. 3 (2009)

发布时间：2009/8/17 0:00:00

标准类别：Standard

出版单位：Standardiserings-Kommissionen I Sverige

标准页数：0

标准简介

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 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.

标准备注

Supersedes SS ISO 7235. (09/2004)

本标准替代的旧标准

SS EN ISO 7235 Ed. 2 (2004)

等同采用的国际标准

NBN EN ISO 7235:2003 - Identical

UNE EN ISO 7235:2004 - Identical

NEN EN ISO 7235:2009 - Identical

I.S. EN ISO 7235:2009 - Identical

SN EN ISO 7235:2003 - Identical

ONORM EN ISO 7235:2010 - Identical

NS EN ISO 7235:2009 - Identical