ISO 354:2003规定了一种测量混响室内用作墙壁或天花板处理的吸声材料的吸声系数或物体（如家具、人员或空间吸收器）的等效吸声面积的方法。它不用于测量弱阻尼谐振器的吸收特性。 所得结果可用于室内声学和噪声控制方面的比较和设计计算。

ISO 354:2003 specifies a method of measuring the sound absorption coefficient of acoustical materials used as wall or ceiling treatments, or the equivalent sound absorption area of objects, such as furniture, persons or space absorbers, in a reverberation room. It is not intended to be used for measuring the absorption characteristics of weakly damped resonators. The results obtained can be used for comparison purposes and for design calculation with respect to room acoustics and noise control.