1、BS EN ISO 7029:2017Acoustics Statisticaldistribution of hearingthresholds related to age andgender (ISO 7029:2017)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 7029:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN
2、 ISO 7029:2017. It supersedes BS EN ISO 7029:2000 which is withdrawn.BSI, as a member of CEN, is obliged to publish EN ISO 7029:2017 as a British Standard. However, attention is drawn to the fact that during the development of this revision, the UK committee voted against its approval.The UK committ
3、ees main concerns are: some data published in this new edition has not been appropriately reviewed and validated; there is a lack of transparency in the derivation of some data; other new and robust data might not have been considered; some parts of ISO 1999:2013, which are consistent with the previ
4、ous edition of this Standard, are no longer in agreement with this revision.The UK participation in its preparation was entrusted by Technical Committee EH/1, Acoustics, to Subcommittee EH/1/1, Hearing.A list of organizations represented on this subcommittee can be obtained on request to its secreta
5、ry.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017. Published by BSI Standards Limited 2017ISBN 978 0 580 85767 6ICS 13.140Compliance with a British Standard cannot conf
6、er immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2017.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 7029 January 2017 ICS 13
7、.140 Supersedes EN ISO 7029:2000English Version Acoustics - Statistical distribution of hearing thresholds related to age and gender (ISO 7029:2017) Acoustique - Distribution statistique des seuils daudition en fonction de lge et du sexe (ISO 7029:2017) This European Standard was approved by CEN on
8、14 January 2017. CEN members are bound to comply with the CEN/CENELEC Internal 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
9、 be obtained on application to the CEN-CENELEC Management Centre or to any CEN 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 t
10、o the CEN-CENELEC Management Centre has the same status as the official versions. 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,
11、 Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC M
12、anagement Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 7029:2017 EBS EN ISO 7029:2017EN ISO 7029:2017 (E) 3 European foreword This document (EN ISO 7029:2017) has been prepared
13、by Technical Committee ISO/TC 43 “Acoustics” in collaboration with Technical Committee CEN/TC 211 “Acoustics” the secretariat of which is held by DIN. 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
14、by July 2017, and conflicting national standards shall be withdrawn at the latest by July 2017. 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 paten
15、t rights. This document supersedes EN ISO 7029:2000. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finlan
16、d, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The tex
17、t of ISO 7029:2017 has been approved by CEN as EN ISO 7029:2017 without any modification. BS EN ISO 7029:2017EN ISO 7029:2017 (E) 3 European f eword This document (EN ISO 7029:2017) has been prepared by Technical Committee ISO/TC 43 “Acoustics” in collaboration with Technical Committee CEN/TC 211 “A
18、coustics” the secretariat of which is held by DIN. 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 July 2017, and conflicting national standards shall be withdrawn at the latest by July 2017. Atte
19、ntion is drawn to the possibility that some of the element of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identif ing any or all such patent rights. This document supersedes EN ISO 7 29:2000. According to the CEN-CENELEC Internal Regulation
20、s, the national standards organizations of the followi g countries are b und to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
21、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roman a, erbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 7029:2017 has been approved by CEN as EN ISO 7029:2017 without any modification. BS EN ISO 70
22、29:2017EN ISO 7029:2017 (E) 3 European foreword This document (EN ISO 7029:2017) has been prepared by Technical Committee ISO/TC 43 “Acoustics” in collaboration with Technical Committee CEN/TC 211 “Acoustics” the secretariat of which is held by DIN. This European Standard shall be given the status o
23、f a national standard, either by publication of an identical text or by endorsement, at the latest by July 2017, and conflicting national standards shall be withdrawn at the latest by July 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of pa
24、tent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 7029:2000. According to the CEN-CENELEC Internal Regulations, the national standards organizati ns of the following countries are bound to implement this Europ
25、ean Standard: 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, Poland, Portugal, Romania, Serbia, Slovak
26、ia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 7029:2017 has been approved by CEN as EN ISO 7029:2017 without any modification. BS EN ISO 7029:2017ISO 7029:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 23 Terms and defi
27、nitions . 24 Specification 24.1 General . 24.2 Median 34.3 Distribution around the median 34.4 Application of data . 5Annex A (informative) Selected values of the Gaussian distribution . 7Annex B (informative) Numerical example to illustrate the procedure 8Annex C (informative) Median values of expe
28、cted hearing threshold deviations . 9Annex D (informative) Selected values of the statistical distribution of hearing threshold deviations10Annex E (informative) Expected median thresholds at audiometric frequencies from 9 000 Hz to 12 500 Hz .13Annex F (informative) Notes on the derivation of descr
29、iptive statistics of hearing thresholds 15Annex G (informative) Dispersion of source data around the expected median of hearing thresholds 20Bibliography .21 ISO 2017 All rights reserved iiiContents PageBS EN ISO 7029:2017ISO 7029:2017(E)ForewordISO (the International Organization for Standardizatio
30、n) is a worldwide federation 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 rep
31、resented on that committee. 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 dev
32、elop this document and those 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 IS
33、O/IEC Directives, Part 2 (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 duri
34、ng the development of the document 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 m
35、eaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.The committee responsible for
36、 this document is ISO/TC 43, Acoustics.This third edition cancels and replaces the second edition (ISO 7029:2000), which has been technically revised with the following changes: new data has been adopted, as explained in the introduction; estimation accuracy of expected medians and statistical distr
37、ibutions of hearing thresholds were generally improved by modifying the formulae used; the age range for which the expected medians and statistical distributions of hearing thresholds are calculable was extended to the age of 80 years at audiometric frequencies of 2 000 Hz and below; it was up to 70
38、 years for all frequencies in the previous editions.iv ISO 2017 All rights reservedBS EN ISO 7029:2017ISO 7029:2017(E)IntroductionThe sensitivity of human hearing is well known to decrease with age and the impairment of hearing develops more rapidly for sound at high frequencies than at low frequenc
39、ies. Moreover, the magnitude of this effect varies considerably among individuals.When testing the hearing of persons markedly over 18 years of age, part of any observed hearing loss will probably be associated with age. It is important to be aware of this when estimating the amount of hearing loss
40、attributable to other causes under investigation.It should be noted that a decrease in hearing ability may not necessarily be caused by ageing itself, but by many injurious influences during lifetime, which are not known in detail.This document is based on a thorough examination of literature data o
41、n the differences between groups having different ages for populations of otologically normal persons as defined herein. Distinction is made between males and females since the difference is found to be of significance in the case of older age groups. The data have been derived from investigations u
42、sing pure tones transmitted to the ear from an earphone, but no evidence is known that disqualifies their use for noise band stimuli.This document is a revision of the second edition (ISO 7029:2000). The expected medians and statistical distributions of hearing thresholds were re-estimated using aud
43、iometric data published after the establishment of the first edition (ISO 7029:1984). All the data on which the second edition had been based were discarded. Thus, this third edition describes the hearing sensitivity profile of people in recent years.Hearing thresholds presented in this document are
44、 generally lower at high frequencies than those in the previous editions of this document. The 4 kHz dip observed in males has become negligibly small. The source data of the previous editions might not have been screened rigorously in terms of hearing abnormalities. Problems related to instrumentat
45、ion might also have affected measurement data.The expected median hearing thresholds at the frequencies from 9 000 Hz to 12 500 Hz are presented for information. Audiometry at those frequencies is executable using an extended high-frequency audiometer. ISO 2017 All rights reserved vBS EN ISO 7029:20
46、17BS EN ISO 7029:2017Acoustics Statistical distribution of hearing thresholds related to age and gender1 ScopeThis document provides descriptive statistics of the hearing threshold deviation for populations of otologically normal persons of various ages under monaural earphone listening conditions.
47、It specifies the following, for populations within the age limits from 18 years to 80 years for the range of audiometric frequencies from 125 Hz to 8 000 Hz:a) the expected median value of hearing thresholds given relative to the median hearing threshold at the age of 18 years;b) the expected statis
48、tical distribution above and below the median value.For the frequencies from 3 000 Hz to 8 000 Hz, the median and statistical distribution for populations above 70 years are presented for information only.This document also provides for information the expected median values at audiometric frequenci
49、es from 9 000 Hz to 12 500 Hz within the age limits from 22 years to 80 years.The data are applicable for estimating the amount of hearing loss caused by a specific agent in a population. Such a comparison is valid if the population under study consists of persons who are otologically normal except for the effect of the specific agent. Noise exposure is an example of a specific agent and for this application, selected data from this document are referred to as “database A” in ISO 1999.NOTE 1 ISO 1999:2013, Database A is based on a previous edition of
