ACOUSTICS. LABORATORY TESTS ON NOISE EMISSION FROM APPLIANCES AND EQUIPMENT USED IN WATER SUPPLY INSTALLATIONS. PART 4: MOUNTING AND OPERATING CONDITIONS FOR SPECIAL APPLIANCES. (ISO 3822-4:1997).
声学供水设施中使用的器具和设备的噪声排放实验室试验 第4部分:特殊设备的安装和操作条件 (ISO 3822-4-1997)