Home / Standards / GB/T 7441-2008 GB/T 7441-2008 Active Measurement of airborne noise emitted by steam turbines and driven machinery 汽轮机及被驱动机械发出的空间噪声的测量 Standard Type GBT ICS 27.040 CCS K54 Status 现行 Issue Date 2008-07-16 Implementation 2009-04-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A