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CNS 7779-4 Standard english version introduction

CNS General No. CNS 7779-4
Classified No. B7165-4
Industrial fans – Determination of fan sound power levels under standardized laboratory conditions – Part 4: Sound intensity method
工業用風機-在標準化實驗室條件下風機聲功率位準測定- 第4部:聲強度法
Date of Approval
Bureau of Standards, Metrology and Inspection Date of Revision
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CNS Standard Code CNS 7779-4
CNS Standard Classified No. B7165-4
CNS Standard English Title Industrial fans – Determination of fan sound power levels under standardized laboratory conditions – Part 4: Sound intensity method
CNS Standard Chinese Title 工業用風機-在標準化實驗室條件下風機聲功率位準測定- 第4部:聲強度法
CNS Standard Edition 10/02/2014
CNS Standard Pages 24
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