EN 13819-2:2020
(Main)Hearing protectors - Testing - Part 2: Acoustic test methods
Hearing protectors - Testing - Part 2: Acoustic test methods
This document specifies acoustic test methods for hearing protectors. The purpose of these tests is to enable assessment of the performance of the hearing protector as specified in the appropriate product standard.
Gehörschützer - Prüfung - Teil 2: Akustische Prüfverfahren
Dieses Dokument legt akustischen Prüfverfahren für Gehörschützer fest. Zweck dieser Prüfungen ist, die Beurteilung der Leistungsfähigkeit des Gehörschützers, wie sie in der jeweiligen Produktnorm festgelegt ist, zu ermöglichen.
Protecteurs individuels contre le bruit - Essais - Partie 2 : Méthodes d'essai acoustique
Le présent document décrit des méthodes d'essai acoustique des protecteurs contre le bruit. L'objectif de ces essais est de permettre l'évaluation des performances du protecteur contre le bruit comme spécifiées dans la norme de produit appropriée.
Varovala sluha - Preskušanje - 2. del: Akustične preskusne metode
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2021
Nadomešča:
SIST EN 13819-2:2003
Varovala sluha - Preskušanje - 2. del: Akustične preskusne metode
Hearing protectors - Testing - Part 2: Acoustic test methods
Gehörschützer - Prüfung - Teil 2: Akustische Prüfverfahren
Protecteurs individuels contre le bruit - Essais - Partie 2: Méthodes d'essai acoustique
Ta slovenski standard je istoveten z: EN 13819-2:2020
ICS:
13.340.20 Varovalna oprema za glavo Head protective equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 13819-2
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2020
EUROPÄISCHE NORM
ICS 13.340.20 Supersedes EN 13819-2:2002
English Version
Hearing protectors - Testing - Part 2: Acoustic test
methods
Protecteurs individuels contre le bruit - Essais - Partie Gehörschützer - Prüfung - Teil 2: Akustische
2 : Méthodes d'essai acoustique Prüfverfahren
This European Standard was approved by CEN on 24 February 2020.
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 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 to 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13819-2:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Test methods . 6
4.1 Insertion loss (earmuffs only) . 6
4.1.1 Principle . 6
4.1.2 Apparatus . 6
4.1.3 Procedure. 6
4.1.4 Report . 6
4.2 Sound attenuation . 7
4.2.1 Principle . 7
4.2.2 Apparatus . 7
4.2.3 Procedure. 7
4.2.4 Report . 9
Annex A (informative) Uncertainty of measurement and interpretation of test results . 11
Bibliography . 13
European foreword
This document (EN 13819-2:2020) has been prepared by Technical Committee CEN/TC 159 “Hearing
protectors”, 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 May 2021, and conflicting national standards shall be
withdrawn at the latest by May 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document will supersede EN 13819-2:2002.
In comparison with the previous edition, the following technical modifications have been made:
— 4.2.3 some details on the test procedure for the sound attenuation of earplugs and custom moulded
earplugs added;
— 4.3 of EN 13819-2:2002 (Sound level effective to the ear (earmuffs only)) deleted;
— Annex ZA of EN 13819-2:2002 deleted.
The technical changes referred to include the significant technical changes from the European Standard
revised but is not an exhaustive list of all modifications from the previous edition.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Introduction
This document specifies procedures for the testing of personal hearing protection devices in relation to
Regulation (EU) 2016/425 - Personal Protective Equipment.
A series of standards EN 352 describes product requirements of hearing protectors:
— EN 352-1, Hearing protectors — General requirements — Part 1: Earmuffs
— EN 352-2, Hearing protectors — General requirements — Part 2: Earplugs
— EN 352-3, Hearing protectors — General requirements — Part 3: Earmuffs attached to head
protection and/or face protection devices
— EN 352-4, Hearing protectors — Safety requirements — Part 4: Level-dependent earmuffs
— EN 352-5, Hearing protectors — Safety requirements — Part 5: Active noise reduction earmuffs
— EN 352-6, Hearing protectors — Safety requirements — Part 6: Earmuffs with safety-related audio
input
— EN 352-7, Hearing protectors — Safety requirements — Part 7: Level-dependent earplugs
— EN 352-8, Hearing protectors — Safety requirements — Part 8: Entertainment audio earmuffs
— EN 352-9, Hearing protectors — Safety requirements — Part 9: Earplugs with safety-related audio
input
— EN 352-10, Hearing protectors — Safety requirements — Part 10: Entertainment audio earplugs
Test methods for these requirements are described in the series of standards EN 13819:
— EN 13819-1, Hearing protectors — Testing — Part 1: Physical test methods
— EN 13819-2, Hearing protectors — Testing — Part 2: Acoustic test methods
— EN 13819-3, Hearing protectors — Testing — Part 3: Supplementary acoustic test methods
An associated standard EN 458 covers selection, use, care and maintenance of hearing protectors.
EN 13819-2 is intended as a supplement to the specific product standards for hearing protectors.
4.1 specifies a method of measuring the insertion loss of earmuffs using an acoustic test fixture.
4.2 specifies a method of measuring the sound attenuation of hearing protectors using human test
subjects.
The performance requirements are given in the hearing protector product standard.
1 Scope
This document specifies acoustic test methods for hearing protectors. The purpose of these tests is to
enable assessment of the performance of the hearing protector as specified in the appropriate product
standard.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
EN ISO 4869-1:2018, Acoustics — Hearing protectors — Part 1: Subjective method for the measurement
of sound attenuation (ISO 4869-1:2018)
EN ISO 4869-2:2018, Acoustics — Hearing protectors — Part 2: Estimation of effective A-weighted sound
pressure levels when hearing protectors are worn (ISO 4869-2:2018)
EN ISO 4869-3:2007, Acoustics — Hearing protectors — Part 3: Measurement of insertion loss of ear-muff
type protectors using an acoustic test fixture (ISO 4869-3:2007)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
acoustic test fixture
ATF
device that approximates certain dimensions of an average adult human head and is used for measuring
the insertion loss of earmuffs
[SOURCE: EN ISO 4869-3:2007, 3.4, modified – The words “and is used for measuring the insertion loss
of earmuffs” have been added. The note has been deleted.]
3.2
insertion loss
mean algebraic difference in decibels between the one-third-octave band sound pressure level,
measured by the microphone of the acoustic test fixture in a specified sound field under specified
conditions, with the hearing protector absent, and the sound pressure level with the hearing protector
on, with other conditions identical
[SOURCE: EN ISO 4869-3:2007, 3.5, modified — The words “mean”, “in a specified sound field under
specified conditions” and “with other conditions identical” have been added. “with the hearing
protector present” has been replaced by “with the hearing protector on”.]
3.3
sound attenuation
mean difference in decibels between the threshold of hearing with and without the hearing protector in
place, for a panel of test subjects, for a given test signal
[SOURCE: EN ISO 4869-1:2018, 3.8, modified — The words “mean” and “in decibels” have been added.
The words “for a test subject” have been replaced by “for a panel of test subjects”.]
4 Test methods
4.1 Insertion loss (earmuffs only)
4.1.1 Principle
The insertion loss of each cup of the earmuffs is measured at specified one-third-octave band centre
frequencies.
4.1.2 Apparatus
The required equipment, including a suitable acoustic test fixture and test site, is described in
EN ISO 4869-3. For mounted earmuffs, a supporting pad, an example of which is shown in Figure 1,
shall be fitted to the acoustic test fixture in order adequately to support the complete mounted earmuff
in position.
4.1.3 Procedure
Follow the procedure given in EN ISO 4869-3, subject to the following modifications:
a) either the random incidence sound field or the plane progressive wave sound field shall be used.
When using the plane progressive wave sound field, if the requirement for insertion loss is not
satisfied, the test shall be repeated using the random incidence sound field. If the requirement for
insertion loss is then satisfied, this shall be deemed to be the definitive result;
b) the insertion loss shall be measured at all one-third-octave bands from 250 Hz to 8 000 Hz;
c) in the case of universal earmuffs the insertion loss shall be measured in only one mode of wearing,
preferably over-the-head;
d) if means to adjust the headband force is incorporated, the force shall be adjusted to its maximum
setting;
e) in the case of mounted earmuffs, for a given model of earmuffs fitted to more than one size of the
same model of carrier, insertion loss shall be tested using only one size of carrier;
f) in the case of headband or mounted earmuffs with electronic supplementary functions that show –
as purposely intended by the manufacturer – different sound attenuation on left and right cups,
mean and standard deviation shall be reported separately for left and right cups.
4.1.4 Report
For each centre frequency and for each cup, individual values of insertion loss shall be reported in
accordance with 4.1.3 b). For all cups, the mean value and standard deviation at each frequency shall
also be reported in accordance with 4.1.3 b).
4.2 Sound attenuation
4.2.1 Principle
The attenuation of the hearing protector is measured at specified one-third-octave band centre
frequencies.
4.2.2 Apparatus
The required app
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