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International Standard Category: Acoustics in building. Sound insulation

GB/T 21228.1-2007    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;
Category No.:91.120.20 Valid Status:valid
Issued Organization:AQSIQ, SAC Issued Date:2007-11-14
Implemented Date:2008-5-1 Abolished Date:
Superseded Standard.: Superseded Date:
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