NF S31-014-2-1995
声学.供水设施使用的器械和设备发出噪音的试验室试验.第2部分:排水龙头和混合阀门的安装和操作条件
Acoustics. Laboratory tests on noise emission from appliances and equipment used in water supply installations. Part 2 : mounting and operating conditions for draw-off taps and mixing valves.