标准摘要
[中文适用范围]： 本文件规定了在标准化条件下有效执行液泵或泵装置空气噪声排放的确定、声明和验证所需的所有信息（见 4.1）。 它规定了噪声测量方法以及测试所使用的操作和安装条件。 噪声发射特性包括指定位置的发射声压级和声功率级。 确定这些量对于 — 声明噪声排放值，以及 — 在设计阶段从源头控制噪声的目的是必要的。 这些量的确定对于比较市场上液体泵发出的噪音也是必要的。 本文件的使用确保了在由所使用的基本空气噪声测量方法的精度等级确定的规定限度内确定空气噪声发射特性的可重复性。 本文件规定的噪声测量方法为工程法（二级）和勘测法（三级）。 本文件不涉及液体泵产生的结构声和液体噪声的特性。 注意 本文件在 EN 809+A1 中指定用于泵（或泵装置）的噪声测量。 [外文原描述]： This document specifies all the information necessary to carry out efficiently and under standardized conditions the determination, declaration, and verification of the airborne noise emission of liquid pumps or pump units (see 4.1). It specifies the noise measurement methods and the operating and mounting conditions that shall be used for the test. Noise emission characteristics include emission sound pressure levels at specified positions and the sound power level. The determination of these quantities is necessary for — declaring the noise emission values, and — purpose of noise control at source at the design stage. The determination of these quantities is also necessary for comparing the noise emitted by liquid pumps on the market. The use of this document ensures the reproducibility of the determination of the airborne noise-emission characteristics within specified limits determined by the grade of accuracy of the basic airborne noise measurement method used. Noise measurement methods according to this document are engineering methods (grade 2) and survey methods (grade 3). This document does not deal with the characterization of the structure-borne sound and liquid-borne noise generated by liquid pumps. NOTE This document is specified in EN 809+A1 for noise measurements of the pump (or pump unit).
英文名称Liquid pumps and pumps units — Noise test code — Grades 2 and 3 of accuracy