1、BSI Standards PublicationBS EN ISO 20361:2015Liquid pumps and pump units Noise test code Grades 2and 3 of accuracyBS EN ISO 20361:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 20361:2015. It supersedes BS EN ISO 20361:2009 which iswithdrawn.The UK par
2、ticipation in its preparation was entrusted to Technical Committee MCE/6, Pumps and pump testing.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are respon
3、sible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 87988 3 ICS 17.140.20; 23.080 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of th
4、e Standards Policy and Strategy Committee on 30 June 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 20361 June 2015 ICS 17.140.20; 23.080 Supersedes EN ISO 20361:2009English Version Liquid pumps and pump units -
5、 Noise test code - Grades 2 and 3 of accuracy (ISO 20361:2015) Pompes et groupes motopompes pour liquides - Code dessai acoustique - Classes de prcision 2 et 3 (ISO 20361:2015) This European Standard was approved by CEN on 17 April 2015. CEN members are bound to comply with the CEN/CENELEC Internal
6、Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
7、member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official version
8、s. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Pol
9、and, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation
10、 in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 20361:2015 EBS EN ISO 20361:2015EN ISO 20361:2015 (E) 3 Foreword This document (EN ISO 20361:2015) has been prepared by Technical Committee ISO/TC 115 “Pumps” incollaboration with Technical Committee CEN/TC 19
11、7 “Pumps” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by December 2015, and conflicting national standards shall be withdrawnat the latest by December 20
12、15. Attention is drawn to the possibility that some of the elements of this document may be the subject of patentrights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 20361:2009. This document has been prepared under a
13、 mandate given to CEN by the European Commission and theEuropean Free Trade Association, and supports essential requirements of EU Directive. For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document. According to the CEN-CENELEC Internal Regulations, t
14、he national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Latvia,
15、 Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 20361:2015 has been approved by CEN as EN ISO 20361:2015 without any modification. BS EN ISO 20361:2015EN IS
16、O 20361:2015 (E) 4 Annex ZA (informative) Relationship between this European Standard and the EssentialRequirements of EU Directive 2006/42/EC This European Standard has been prepared under a mandate given to CEN by the European Commissionand the European Free Trade Association to provide a means of
17、 conforming to Essential Requirements of theNew Approach Directive 2006/42/EC on machinery. Once this standard is cited in the Official Journal of the European Union under that Directive and has beenimplemented as a national standard in at least one Member State, compliance with the clauses of thiss
18、tandard confers, within the limits of the scope of this standard, a presumption of conformity with thecorresponding Essential Requirements of that Directive (EHSR 1.7.4.2 u) and associated EFTA regulations. WARNING Other requirements and other EU Directives may be applicable to the product(s) fallin
19、g withinthe scope of this standard. BS EN ISO 20361:2015ISO 20361:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 Pump family and pump configuration . 25 Sound power level determination 25.1 General . 25.2 Specific considerations for reference box, mea
20、surement surface, position of microphones, and intensity probe . 45.2.1 General 45.2.2 Reference box . 45.2.3 Measurement surface and microphone positions . 65.2.4 Position of microphones and intensity probes .106 Emission sound pressure level determination 106.1 Basic standard to be used . 106.2 Re
21、levant work station 106.3 Measurement uncertainty 107 Installation and mounting conditions .117.1 General 117.2 Noise test situation . 117.2.1 General. 117.2.2 Test on site . 117.2.3 Test on shop test stand 117.2.4 Test on a specific facility intended for acoustic measurement .118 Operating conditio
22、ns during noise measurement .128.1 General 128.2 Pumped liquid 128.3 NPSHA value . 129 Information to be recorded 129.1 General 129.2 Test report 1210 Declaration and verification of noise emission values 13Annex A (normative) Pump alone Measurement surface 14Annex B (normative) Pump units Microphon
23、e positions for sound pressure level measurement on the measurement surface for different pump types and sizes 15Bibliography .22 ISO 2015 All rights reserved iiiContents PageBS EN ISO 20361:2015ISO 20361:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federati
24、on of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee
25、. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and tho
26、se intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (
27、see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the do
28、cument will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms a
29、nd expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 115, Pumps.This second edition
30、cancels and replaces the first edition (ISO 20361:2007), which has been technically revised.iv ISO 2015 All rights reservedBS EN ISO 20361:2015ISO 20361:2015(E)IntroductionThe noise emitted by a pump unit can be radiated by the casing of the pump, the driving system (e.g. motor, gear box, coupling),
31、 the piping system, and all the connected structures.On site, the perceived noise can be significantly increased by reverberation effects or by the radiation of extraneous sources.Depending on the type of pump it can be useful to know the following:a) the noise of the pumping system (including pipin
32、g);b) the noise of the pump unit, including the driver and the transmission elements but excluding the noise of the piping system;c) the noise emitted by the pump alone, excluding the noise from the driver, transmission elements, and the piping;d) the noise emitted by each of those elements in respe
33、ct to a given requirement or in view of an efficient sound proofing of the installation.This International Standard describes methods for the determination of the noise emitted by a pump unit case b) or a pump alone case c). Noise emission is expressed in terms of the sound power level of the machin
34、e and the emission sound pressure level at the relevant work station (see 6.2).This International Standard is intended to enable the manufacturer to show the effectiveness of noise reduction, and declare the noise emission levels.This International Standard is a type C standard as stated in ISO 1210
35、0-1 and ISO 12100-2.When provisions of this type C standard are different from those which are stated in A or B standards, the provisions of this type C standard take precedence.The machinery concerned and the extent to which noise is covered are indicated in the scope of this International Standard
36、. ISO 2015 All rights reserved vBS EN ISO 20361:2015ISO 20361:2015(E)BS EN ISO 20361:2015Liquid pumps and pump units Noise test code Grades 2 and 3 of accuracy1 ScopeThis International Standard specifies all the information necessary to carry out efficiently and under standardized conditions the det
37、ermination, 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
38、 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
39、pumps on the market.The use of this International Standard 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 accord
40、ing 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 liquid-borne noise generated by liquid pumps.NOTE This International Standard is intended to compleme
41、nt EN 809.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including
42、any amendments) applies.ISO 3743-11), 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 roomISO 3743-2, Acoustics Determinati
43、on 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 roomsISO 37442), Acoustics Determination of sound power levels and sound energy levels of noise sources using sound press
44、ure Engineering methods for an essentially free field over a reflecting planeISO 37463), 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 planeISO 4871:1996, Acoustics D
45、eclaration and verification of noise emission values of machinery and equipment1) To be published. (Revision of ISO 3743-1:1994)2) To be published. (Revision of ISO 3744:1994)3) To be published. (Revision of ISO 3746:1995)INTERNATIONAL STANDARD ISO 20361:2015(E) ISO 2015 All rights reserved 1BS EN I
46、SO 20361:2015ISO 20361:2015(E)ISO 9614-1, Acoustics Determination of sound power levels of noise sources using sound intensity Part 1: Measurement at discrete pointsISO 9614-2, Acoustics Determination of sound power levels of noise sources using sound intensity Part 2: Measurement by scanningISO 112
47、03, 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 levelISO 17769 (all parts), Liquid pumps and installation General terms Definitions, quantities, letter symbols and unitsISO/
48、TR 7849, Acoustics Estimation of airborne noise emitted by machinery using vibration measurement3 Terms and definitionsFor the purposes of this document, the definitions given in ISO 17769 (all parts) and the following apply.3.1pumpequipment that is defined as being terminated by its inlet and outle
49、t branches as well as in general its shaft ends3.2pump unitequipment that is comprised of the pump (3.1) and its driver (e.g. electric motor, steam turbine) including transmission elements (e.g. coupling, gear), baseplates, and any auxiliary equipmentsupplied with the pump4 Pump family and pump configuration4.1 Pumps covered by this International Standard comprise of liquid pumps of the rotodynamic and positive displacement, rotary, and reciprocating types.4.2 This International Standard provides two possi
