BS EN ISO 20361:2009
Liquid pumps and pump units. Noise test code. Grades 2 and 3 of accuracy

Standard No.

BS EN ISO 20361:2009

Release Date

2009

Published By

British Standards Institution (BSI)

Status

Be replaced 2015-06

Replace By

BS EN ISO 20361:2015

Latest

BS EN ISO 20361:2019+A11:2020

Replace

BS EN 12639:2000 04/30126355 DC:2004

Scope

This International Standard 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, - purpose of noise control at source at the design stage. NOTE 1 The determination of these quantities is also necessary for comparing the noise emitted by liquid pumps on the market. The use of this International Standard ensures the reproducibility of the determination of the airborne noiseemission characteristics within specified limits determined by the grade of accuracy of the basic airborne noise measurement method used. Noise measurement methods according to this International Standard are engineering methods (grade 2) and survey methods (grade 3). This International Standard does not deal with the characterization of the structure-borne sound and liquidborne noise generated by liquid pumps. NOTE 2 This International Standard is intended to complement EN 809, Pumps and pump units for liquids - Common safety requirements.

BS EN ISO 20361:2009 Referenced Document

• ISO 11203:1995 Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level
• ISO 12100-1 Safety of machinery — Basic concepts, general principles for design — Part 1: Basic terminology, methodology — Amendment 1
• ISO 12100-2 Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles; Amendment 1
• ISO 17769 Liquid pumps and installation - General terms - Definitions, quantities, letter symbols and units
• ISO 3743-1 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for small movable sources in reverberant fields - Part 1: Comparison method for a hard-walled test room*， 2010-10-01 Update
• ISO 3743-2 Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2: Methods for special reverberation test rooms*， 2018-02-01 Update
• ISO 3744 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane*， 2010-10-01 Update
• ISO 3746 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane*， 2010-12-01 Update
• ISO 4871:1996 Acoustics - Declaration and verification of noise emission values of machinery and equipment
• ISO 9614-1 Acoustics; determination of sound power levels of noise sources using sound intensity; part 1: measurement at discrete points
• ISO 9614-2:1996 Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 2: Measurement by scanning
• ISO/TR 7849 Acoustics; Estimation of airborne noise emitted by machinery using vibration measurement

BS EN ISO 20361:2009 history

• 2020 BS EN ISO 20361:2019+A11:2020 Liquid pumps and pumps units. Noise test code. Grades 2 and 3 of accuracy
• 2019 BS EN ISO 20361:2019 Liquid pumps and pumps units. Noise test code. Grades 2 and 3 of accuracy
• 2015 BS EN ISO 20361:2015 Liquid pumps and pump units. Noise test code. Grades 2 and 3 of accuracy
• 2009 BS EN ISO 20361:2009 Liquid pumps and pump units. Noise test code. Grades 2 and 3 of accuracy
• 2000 BS EN 12639:2000 Liquid pumps and pump units - Noise test code - Grade 2 and grade 3 of accuracy

BS EN ISO 20361:2009 Liquid pumps and pump units. Noise test code. Grades 2 and 3 of accuracy has been changed from BS EN 12639:2000 Liquid pumps and pump units - Noise test code - Grade 2 and grade 3 of accuracy.