BS EN ISO 20361:2019 - Liquid pumps and pumps units. Noise test code. Grades 2 and 3 of accuracy

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BS EN ISO 20361:2019

Liquid pumps and pumps units. Noise test code. Grades 2 and 3 of accuracy

Status : Current   Published : September 2019



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.


This document is specified in EN� 809+A1 for noise measurements of the pump (or pump unit).

Standard NumberBS EN ISO 20361:2019
TitleLiquid pumps and pumps units. Noise test code. Grades 2 and 3 of accuracy
Publication Date19 September 2019
Cross ReferencesISO 11203:1995, ISO 17769-1:2012, ISO 9614-1:1993, ISO 17769-2:2012, ISO 3743-1:2010, ISO 9614-2:1996, ISO 3743-2:2018, ISO 4871:1996, ISO 3744:2010, ISO 3746:2010, EN 809+A1, ISO 12100
ReplacesBS EN ISO 20361:2015
International RelationshipsEN ISO 20361:2019,ISO 20361:2019
Draft Superseded By18/30369856 DC
DescriptorsPosition, Testing conditions, Sound intensity, Airborne noise, Fluid equipment, Noise (environmental), Surfaces, Operating conditions, Acoustic measurement, Acoustic testing, Pumps, Design, Rated power, Grades (quality), Verification, Noise control (acoustic), Mounting instructions, Microphones, Measurement, Declarations
Title in FrenchPompes et groupes motopompes pour liquides. Code d'essai acoustique. Classes de précision 2 et 3
Title in GermanFlüssigkeitspumpen und -pumpenaggregate. Geräuschmessung. Genauigkeitsklassen 2 und 3
ISBN978 0 580 52179 9
File Size2.211 MB

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