China Acoustics―Descriptio 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 3222.1-2006 Acoustics―Description, measurement and assessment of environmental noise―Part 1：Basic quantities and assessment procedures 声学环境噪声的描述、测量与评价第1部分：基本参量与评价方法 - 英文版

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