Home / Standards / GB/T 23281-2009 GB/T 23281-2009 Active Metal forming machinery -noise measurement method of sound pressure levels 锻压机械噪声声压级测量方法 Standard Type GBT ICS 25.120.10 CCS J62 Status 现行 Issue Date 2009-03-16 Implementation 2009-11-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会