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GB/T 21228.2-2023 Acoustics - Surface sound scattering properties - Part 2: Free-field directional diffusion coefficient measurement 声学 表面声散射特性 第2部分：自由场方向性扩散系数测量 - 中英文版 |
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GB/T 3768-2017 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a reflecting plane 声学 声压法测定噪声源声功率级和声能量级 采用反射面上方包络测量面的简易法 - 中英文版 |
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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 - 中英文版 |
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GB/T 20243.1-2006 Acoustics - Measurement of the influence of road surface on traffic noise Part 1: Statistical Pass-By method 声学 道路表面对交通噪声影响的测量 第1部分 统计通过法 - 中英文版 |
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GB/T 3768-1996 Acoustics--Determination of sound power levels of noise sources using sound pressure--Survey method using an enveloping measurement surface over a reflecting plane 声学 声压法测定噪声源声功率级 反射面上方采用包络测量表面的简易法 - 中英文版 |
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