标准摘要
[中文适用范围]： GB／T 21228的本部分规定了由表面粗糙度引起的表面无规入射声散射系数的测量方法。应在混 响室中以足尺模型或实物缩尺模型进行测量。测量结果可用来描述有多少来自表面的声反射偏离了镜 面反射。其结果还可用于与室内声学和噪声控制有关的对比和设计计算。 本方法不适用于表征表面声散射的空间均匀分布特性。 [外文原描述]： ISO 17497-1:2004 specifies a method of measuring the random-incidence scattering coefficient of surfaces as caused by surface roughness. The measurements are made in a reverberation room, either in full scale or on a physical scale model. The measurement results can be used to describe how much the sound reflection from a surface deviates from a specular reflection. The results obtained can be used for comparison purposes and for design calculations with respect to room acoustics and noise control. The method is not intended for characterizing the spatial uniformity of the scattering from a surface.
英文名称Acoustics — Sound-scattering properties of surfaces — Part 1: Measurement of the random-incidence scattering coefficient in a reverberation room