China Acoustics - Surface GB Standards Search Result

and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within 1~3 days.
2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days .


	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 - 英文版
	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 - 英文版
	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 - 英文版
	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 - 英文版
	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 - 英文版

Find out:5Items | To Page of: First -Previous-Next -Last | 1