标准编号：ISO 20361:2019
中文名称：液泵及其组件 噪声试验规范 精度的2级和3级
英文名称：Liquid pumps and pumps units — Noise test code — Grades 2 and 3 of accuracy
发布日期：2019-07
标准范围
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).
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