1、September 2009DEUTSCHE NORM English price group 20No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 13.140!$YU(“1545005w
2、ww.din.deDDIN EN ISO 9612Acoustics Determination of occupational noise exposure Engineering method (ISO 9612:2009)English version of DIN EN ISO 9612:2009-09Akustik Bestimmung der Lrmexposition am Arbeitsplatz Verfahren der Genauigkeitsklasse 2 (Ingenieurverfahren) (ISO 9612:2009)Englische Fassung DI
3、N EN ISO 9612:2009-09Partially supersedesDIN 45645-2:1997-07www.beuth.deDocument comprises pages51DIN EN ISO 9612:2009-09 National foreword This standard has been prepared by Technical Committee ISO/TC 43 “Acoustics”, Subcommittee SC 1 “Noise” (Secretariat: DS, Denmark) in collaboration with Technic
4、al Committee CEN/TC 211 “Acoustics” (Secretariat: DS, Denmark). The responsible German body involved in its preparation was the Normenausschuss Akustik, Lrmminderung und Schwingungstechnik im DIN und VDI (Acoustics, Noise Control and Vibration Engineering Standards Committee in DIN and VDI), Technic
5、al Committees NA 001-01-02-10 AK Bestimmung der Gerusch-exposition bei der Arbeit and NA 001-01-02 AA Akustik Geruschimmission Grundlagen, Ermittlung, Beurteilung. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO/IEC Guide 98-3 DIN V ENV
6、 13005 IEC 61252 DIN EN 61252 IEC 61672-1:2002 DIN EN 61672-1 ISO 4869-2 DIN EN ISO 4869-2 ISO 11200 DIN EN ISO 11200 ISO 11201 DIN EN ISO 11201 and E DIN EN ISO 11201 ISO 11202 DIN EN ISO 11202 and E DIN EN ISO 11202 ISO 11203 DIN EN ISO 11203 ISO 11205 DIN EN ISO 11205 ISO 11904-1 DIN EN ISO 11904
7、-1 ISO 11904-2 DIN EN ISO 11904-2 Note This new edition of ISO 9612 only covers part of the scope of DIN 45645-2:1997-07, primarily the range of sound pressure levels that can cause hearing damage. Because it is intended that DIN 45645-2 continues to cover sound pressure levels lying below this rang
8、e, and possible reactions to these levels, the standard will be revised accordingly. Amendments This standard differs from DIN EN 45645-2:1997-07 as follows: a) Only some of the content of the standard is dealt with here. b) DIN EN ISO 9612 primarily covers the range of sound pressure levels that ca
9、n cause hearing damage. c) Sound pressure levels lying below this range will continue to be dealt with in DIN 45645-2, which will be revised accordingly. d) Complex methods of evaluation measurement uncertainty are now included. Previous editions DIN 45645-2: 1980-08, 1997-07 2 DIN EN ISO 9612:2009-
10、09 National Annex NA (informative) Bibliography DIN V ENV 13005, Guide to the expression of uncertainty in measurement DIN EN 60942:2004-05, Electroacoustics Sound calibrators (IEC 60942:2008) DIN EN 61252, Electroacoustics Specifications for personal sound exposure meters (IEC 61252) DIN EN 61672-1
11、:2003-10, Electroacoustics Sound level meters Part 1: Specifications (IEC 61672-1 ) :2002DIN EN ISO 4869-21), Acoustics Hearing protectors Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn (ISO 4869-2) DIN EN ISO 11200, Acoustics Noise emitted by machi
12、nery and equipment Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions (ISO 11200) DIN EN ISO 112012), Acoustics Noise emitted by machinery and equipment Measurement of emission sound pressure levels at
13、a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections (ISO 11201) DIN EN ISO 112023), Acoustics Noise emitted by machinery and equipment Measurement of emission sound pressure levels at a work station and at oth
14、er specified positions applying approximate environmental corrections (ISO 11202) DIN EN ISO 11203, 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 11203) DIN EN ISO
15、112054), Acoustics Noise emitted by machinery and equipment - Engineering method for the determination of emission sound pressure levels in situ at the work station and at other specified positions using sound intensity (ISO 11205) DIN EN ISO 11904-1, Acoustics Determination of sound immission from
16、sound sources placed close to the ear Part 1: Technique using microphone in real ear (MIRE-technique) (ISO 11904-1) DIN EN ISO 11904-2, Acoustics Determination of sound immission from sound sources placed close to the ear Part 2: Technique using a manikin (ISO 11904-2) 1)Reference to DIN EN ISO 4869
17、-2 includes DIN EN ISO 4869-2 Corrigendum 1:2007-09, Acoustics Hearing protectors Part 2: Estimation of effective A-weighted sound pressure levels when hearing protectors are worn 2)ISO 11201 is currently under revision and has been published as draft DIN EN ISO 11201:2008-01, Acoustics Noise emitte
18、d by machinery and equipment Measurement of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections 3)ISO 11202 is currently under revision and has been published as draft DIN EN
19、ISO 11202:2008-01, Acoustics Noise emitted by machinery and equipment Measurement of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections 4)Reference to DIN EN ISO 11205 includes DIN EN ISO 11205 Corrigendum 1:2007-02, Acous
20、tics Noise emitted by machinery and equipment Engineering method for the determination of emission sound pressure levels in situ at the work station and at other specified positions using sound intensity 3 DIN EN ISO 9612:2009-09 4 This page is intentionally blank EUROPEAN STANDARDNORME EUROPENNEEUR
21、OPISCHE NORMEN ISO 9612April 2009ICS 13.140English VersionAcoustics - Determination of occupational noise exposure -Engineering method (ISO 9612:2009)Acoustique - Dtermination de lexposition au bruit enmilieu de travail - Mthode dexpertise (ISO 9612:2009)Akustik - Bestimmung der Lrmexposition am Arb
22、eitsplatz -Verfahren der Genauigkeitsklasse 2 (Ingenieurverfahren)(ISO 9612:2009)This European Standard was approved by CEN on 5 March 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a nation
23、al standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any
24、other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia
25、, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES
26、KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 9612:2009: EContents Page Foreword 3 Introduction 4 1 Scope . 5 2 Normative references . 5 3 Terms and de
27、finitions. 5 4 Symbols . 8 5 Instrumentation. 9 6 Methodology Chronological steps . 10 7 Work analysis 11 8 Selection of measurement strategies. 12 9 Strategy 1 Task-based measurement.13 10 Strategy 2 Job-based measurement 1 11 Strategy 3 Full-day measurement. 18 12 Measurements. 19 13 Sources of un
28、certainty. 21 14 Calculation of measurement uncertainties and presentation of the final results 23 15 Information to be reported. 23 Annex A (informative) Example of a checklist to ensure that significant noise events are detected during the work analysis 25 Annex B (informative) Guide to the select
29、ion of measurement strategy . 2 Annex C (normative) Evaluation of measurement uncertainties 29 Annex D (informative) An example showing calculation of daily noise exposure level using task-based measurements . 37 Annex E (informative) An example showing calculation of daily noise exposure level usin
30、g job-based measurements 41 Annex F (informative) Sample calculation of daily noise exposure level using full-day measurements. 44 Bibliography . 47 EN ISO 9612:2009 (E) DIN EN ISO 9612:2009-09 26.6Foreword This document (EN ISO 9612:2009) has been prepared by Technical Committee ISO/TC 43 “Acoustic
31、s“ in collaboration with Technical Committee CEN/TC 211 “Acoustics” the secretariat of which is held by DS. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2009, and conflicting national s
32、tandards shall be withdrawn at the latest by October 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELE
33、C Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
34、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 9612:2009 has been approved by CEN as a EN ISO 9612:2009 without any modification. EN ISO 9612:2009 (E) DIN EN ISO 9612:2009-09 3Introd
35、uction This International Standard provides a stepwise approach to the determination of occupational noise exposure from noise level measurements. The procedure contains the following major steps: work analysis, selection of measurement strategy, measurements, error handling and uncertainty evaluati
36、ons, calculations, and presentation of results. This International Standard specifies three different measurement strategies: task-based measurement; job-based measurement; and full-day measurement. This International Standard gives guidance on selecting an appropriate measurement strategy for a par
37、ticular work situation and purpose of investigation. This International Standard also provides an informative spreadsheet to allow calculation of measurement results and uncertainties. ISO is not responsible for errors that may arise or occur with the use of this spreadsheet. This International Stan
38、dard recognizes the use of hand-held sound level meters as well as personal sound exposure meters. The methods specified optimize the effort required for obtaining a given accuracy. EN ISO 9612:2009 (E) DIN EN ISO 9612:2009-09 41 Scope This International Standard specifies an engineering method for
39、measuring workers exposure to noise in a working environment and calculating the noise exposure level. This International Standard deals with A-weighted levels but is applicable also to C-weighted levels. Three different strategies for measurement are specified. The method is useful where a determin
40、ation of noise exposure to engineering grade is required, e.g. for detailed noise exposure studies or epidemiological studies of hearing damage or other adverse effects. The measuring process requires observation and analysis of the noise exposure conditions so that the quality of the measurements c
41、an be controlled. This International Standard provides methods for estimating the uncertainty of the results. This International Standard is not intended for assessment of masking of oral communication or assessment of infrasound, ultrasound and non-auditory effects of noise. It does not apply to th
42、e measurement of the noise exposure of the ear when hearing protectors are worn. Results of the measurements performed in accordance with this International Standard can provide useful information when defining priorities for noise control measures. 2 Normative references The following referenced do
43、cuments are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1999, Acoustics Determination of occupational noise exposure and estimat
44、ion of noise-induced hearing impairment ISO/IEC Guide 98-3, Uncertainty of measurement Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) IEC 60942:2003, Electroacoustics Sound calibrators IEC 61252, Electroacoustics Specifications for personal sound exposure meters IEC 61672-1
45、:2002, Electroacoustics Sound level meters Part 1: Specifications 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. EN ISO 9612:2009 (E) DIN EN ISO 9612:2009-09 53.1 A-weighted time-averaged sound pressure level Lp,A,TA-weighted equivalent continuo
46、us sound pressure level Lp,A,eqT ten times the logarithm to the base 10 of the ratio of the time average of the square of the A-weighted sound pressure, pA, during a stated time interval of duration T (starting at t1and ending at t2), to the square of a reference value, p0, expressed in decibels 212
47、A,A, ,A,eq201()d10 lg dBttpT p TpttTLLp=(1) where the reference value, p0, is 20 Pa NOTE Adapted from ISO/TR 25417:2007 9. 3.2 A-weighted noise exposure level normalized to an 8 h working day daily noise exposure level LEX,8hoccupational noise level, in decibels, given by the equation: eeEX,8h ,A,eq
48、010 lg dBpTTLLT=+(2) where Lp,A,eqTeis the A-weighted equivalent continuous sound pressure level for Te; Teis the effective duration, in hours, of the working day; T0is the reference duration, T0= 8 h NOTE 1 If the effective duration of the working day, Te, is equal to 8 h, then LEX,8hequals Lp,A,eq
49、,8h. NOTE 2 If the average or normalized exposure over a number of days is desired, Equation (3) can be used: EX,8h,0,1EX,8h1110 lg 10 dBxXLxLX=(3) The value of X is chosen according to the purpose of the averaging process. For example, X = 5 leads to a daily noise exposure level normalized to a nominal week of five 8 h working days. NOTE 3 This definition differs from that given in ISO/TR 25417:2007 9. 3.3 nominal day working day over which it is chosen
