Home / Standards / GB/T 20246-2006 GB/T 20246-2006 Active Acoustics - Determination of sound power levels of multisource industrial plants for evaluation of sound pressure levels in the environment - Engineering method 声学 用于评价环境声压级的多声源工厂的声功率级测定 工程法 Standard Type GBT ICS 17.140 CCS A59 Status 现行 Issue Date 2006-05-08 Implementation 2006-11-01 Responsible Dept 中国科学院 Drafting Unit 中国科学院