Home / Standards / GB/T 3222.2-2009 GB/T 3222.2-2009 Abolished Acoustics - Description, measurement and assessment of environmental noise - Part 2: Determination of environmental noise levels 声学 环境噪声的描述、测量与评价 第2部分：环境噪声级测定 Standard Type GBT ICS 17.140 CCS A59 Status 废止 Issue Date 2009-09-30 Implementation 2009-12-01 Responsible Dept 中国科学院 Drafting Unit N/A