Home / Standards / GB/T 21228.1-2007 GB/T 21228.1-2007 Active Acoustics - Sound-scattering properties of surfaces - Part 1: Measurement of the random-incidence scattering coefficient in a reverberation room 声学 表面声散射特性 第1部分:混响室中无规入射声散射系数测量 Standard Type GBT ICS 91.120.20 CCS A59 Status 现行 Issue Date 2007-11-14 Implementation 2008-05-01 Responsible Dept 中国科学院 Drafting Unit N/A