EN ISO 3822-3-1997 声学.由供水设施使用的仪器和设备发出噪音进行的实验室试验.第3部分:管线上用的管件的连接和操作条件;包含修改件A1-2009
Acoustics - Laboratory Tests on Noise Emission from Appliances and Equipment Used in Water Supply Installations - Part 3: Mounting and Operating Conditions for In-Line Valves and Appliances Incorporates Amendment A1: 2009