Home / Standards / GB/T 9911-2018 GB/T 9911-2018 Active Measurement of airborne noise emitted by marine diesel engine 船用柴油机辐射的空气噪声测量方法 Standard Type GBT ICS 47.020.20 CCS U44 Status 现行 Issue Date 2018-02-06 Implementation 2018-09-01 Responsible Dept 国家标准委 Drafting Unit N/A