ASTM E966建筑物表面和表面构件气载声音隔离的现场测量标准指南
日期:2012-02-08 11:52
d the resulting sound pressure level in a room. Either a loudspeaker or existing traffic noise or aircraft noise can be used as the source. The outdoor sound field geometry must be described and calculations must account for the way the outdoor level is measured. These results are used with Classification E1332 to calculate the single number rating outdoor-indoor noise isolation class, OINIC. Both OINR and OINIC can vary with outdoor sound incidence angle.
1.2 Under controlled circumstances wher
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