AS 2499-1981被替代
Acoustics - Method for laboratory measurement of airborne sound attenuation of ceilings (two-room method)
出版：Standards Australia
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基本信息
標準編號： AS 2499-1981
標準類別：Standard
出版單位：Standards Australia
標準頁數：12
標準簡介
Describes the method for the measurement of the airborne sound attenuation by ceilings between two rooms with plenum space above. This method provides a means of evaluation of the sound isolating performance of a ceiling system under laboratory conditions.
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