Pumps - Rotodynamic pumps - Circulation pumps having a rated power input not exceeding 200 W for heating installations and domestic hot water installations - Part 2: Noise test code (vibro-acoustics) for measuring structure- and fluid-borne noise
泵.旋转动力泵.供暖装置和家用热水装置用额定功率输入不超过200W的循环泵.第2部分:测量结构和流体传播噪声的噪声试验规范(振动声学)