Acoustics—Measurement methods of insertion loss,echo reduction and sound absorption coefficient for underwater acoustical material samples
全国声学标准化技术委员会(SAC/TC 17)
本标准规定了用脉冲管法、自由场法和压力罐近场法测量水声材料样品插入损失、回声降低和吸声系数的测量方法、测量条件、测量装置和测量不确定度。
本标准适用于水声材料及构件样品（以下简称样品）插入损失、回声降低和吸声系数的测量，其中脉冲管法适用于小样品的测量，自由场法和压力罐近场法适用于不同频段的大样品测量。
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