EN ISO 3822-3:1997 聲學(xué).由供水設(shè)施使用的儀器和設(shè)備發(fā)出噪音進(jìn)行的實(shí)驗(yàn)室試驗(yàn).第3部分:管線上用的管件的連接和操作條件;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