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
wo rooms can be obtained. The results may be used to predict interior sound levels in installations similar to that tested when exposed to an outdoor sound field similar to that used during the measurement. The single number ratings of apparent outdoor-indoor transmission class, AOITC(), using AOITL() and field outdoor-indoor transmission class, FOITC(), using OITL() may be calculated using Classification E1332. These ratings also may be calculated with the data obtained from receiving room soun
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