SIST EN 14462:2005

Surface treatment equipment - Noise test code for surface treatment equipment including its ancillary handling equipment - Accuracy grades 2 and 3

This standard specifies all the information necessary to carry out efficiently and under standardised conditions the determination, declaration and verification of the airborne noise emission of surface treatment machines as stated in annex A. Surface treatment machines include such as but not limited to
3 machines for cleaning and pretreatment of industrial item surfaces,
3 machinery for coating and colour mixing,
3 coating plants
and
3 dryers, ovens and evaporating equipment.
This standard describes the determination of emission sound pressure levels at work stations or other specified positions as well as the determination of sound power levels for surface treatment machines as stated in annex A. This can be small single units (e.g. handheld atomising spraying equipment) and also complex machines with large dimensions (e.g. machines for cleaning and pretreatment of industrial item surfaces, spray booths, dryers), which could also be linked.
In case of very large machines as defined in 3.10 the determination of sound power level may be very complicated or cannot be done with a reasonable amount of work. Therefore in this standard, the measurement for very large machines is simplified by determining an averaged emission sound pressure level instead of the sound power level.
This standard specifies noise measurement methods, installation/mounting and operation conditions that shall be used for the test. The use of this standard ensures the reproducibility of the determination of the noise emission characteristics within specified limits determined by the grade of accuracy of the basic noise measurement method used (see 5.1 and 6.1). Noise measurement methods allowed by this standard are engineering methods (grade 2) and survey methods (grade 3).
For continuous flow dryers for paper, board and foil  (see prEN 13023).
This standard applies to surface treatment machines manufactured after the date of issue of this standard.

Oberflächenbehandlungsgeräte - Geräuschmessverfahren für Oberflächenbehandlungsgeräte einschließlich ihrer Be- und Entladeeinrichtungen - Genauigkeitsklassen 2 und 3

Diese Norm präzisiert alle notwendigen Informationen, um die Bestimmung, Angabe und Überprüfung der luftgetragenen Geräusch-Emissionswerte von Oberflächenbehandlungsgeräten (wie in Anhang A aufgeführt) effizient und unter genormten Bedingungen durchzuführen. Oberflächenbehandlungsgeräte sind z. B.:
-   Maschinen zur Oberflächenreinigung und -vorbehandlung von industriellen Produkten,
-   Mischgeräte für Beschichtungsstoffe,
-   Beschichtungsanlagen
und
-   Trockner, Öfen und Verdunstungseinrichtungen.
Diese Norm beschreibt die Bestimmung von Emissions-Schalldruckpegeln an Arbeitsplätzen oder anderen festgelegten Orten sowie die Bestimmung der Schallleistungspegel an Oberflächenbehandlungsgeräten, wie in Anhang A beschrieben. Hierbei kann es sich um kleine Einzeleinheiten (z. B. handgeführte Spritz- oder Sprüheinrichtungen) und auch um komplexe Anlagen mit großen Abmessungen (z. B. Maschinen zur Oberflächenreinigung und -vorbehandlung von industriellen Produkten, Spritzkabinen, Trockner) handeln, die auch miteinander verbunden sein können.
Die Bestimmung des Schallleistungspegels ist für diese sehr großen Maschinen (wie in 3.10 definiert) vielfach äußerst kompliziert oder mit vertretbarem Aufwand nicht möglich. Die Messungen an sehr großen Maschinen werden daher in dieser Norm durch die Bestimmung des gemittelten Emissions-Schalldruckpegels anstelle des Schallleistungspegels vereinfacht.
Diese Norm legt Geräuschmessverfahren, Aufstellungs- und Befestigungsbedingungen sowie die Betriebsbedingungen für die Geräuschmessung fest. Die Anwendung dieser Norm stellt die Reproduzierbarkeit der Bestimmung der Kenndaten für das Geräuschmessverfahren innerhalb festgelegter Grenzen sicher, die durch die Genauigkeitsklasse der verwendeten Rahmenmessnorm (siehe 5.1 und 6.1) bestimmt werden. Diese Norm erlaubt Geräuschmessungen der Genauigkeitsklassen 2 und 3.
Bezüglich Durchlauftrockner für Papier, Pappe und Folien siehe EN 13023.
Diese Norm gilt für Oberflächenbehandlungsgeräte

Equipements de traitement de surface - Code d'essai acoustique pour équipements de traitement de surface y compris les équipements de manutention auxilliaires - Classes de précision 2 et 3

Le présent document spécifie toutes les informations nécessaires pour procéder avec efficacité et dans des
conditions normalisées, a la détermination, a la déclaration et a la vérification du bruit aérien émis par les machines
de traitement de surface tel que défini a l'Annexe A. Les machines de traitement de surface comprennent, sans
toutefois s'y limiter :
.les machines de nettoyage et de prétraitement de surfaces de pieces industrielles ;
.les équipements pour le revetement et le mélange des teintes ;
.les installations d?application ;
et
.les enceintes de séchage, fours et équipements d'évaporation.
Le présent document décrit la détermination des niveaux de pression acoustique d?émission aux postes de travail
ou en d'autres positions spécifiées ainsi que des niveaux de puissance acoustique des machines de traitement de
surface tel que défini a l'Annexe A. Il peut s?agir de petites unités simples (par exemple, équipements portatifs
d?atomisation et de pulvérisation) ou des machines complexes volumineuses (par exemple, des machines de
nettoyage et de prétraitement de surfaces de pieces industrielles, cabines d?application par pulvérisation, séchoirs),
qui peuvent etre également couplées.
Lorsqu?il s?agit de machines de tres grandes dimensions telles que définies en 3.10, la détermination du niveau de
puissance acoustique peut se révéler tres compliquée ou irréalisable avec une charge de travail raisonnable. Dans
le présent document, le mesurage concernant des machines de tres grandes dimensions est donc simplifié par la
détermination d?un niveau de pression acoustique d?émission pondéré plutôt que du niveau de puissance
acoustique.

Naprave za površinsko obdelavo - Postopek merjenja hrupnosti naprav za površinsko obdelavo, vključno z dodajnimi in odvzemnimi napravami - Razreda točnosti 2 in 3

General Information

• Status: Withdrawn
• Publication Date: 30-Apr-2005
• Withdrawal Date: 11-Apr-2010
• ICS: 17.140.20 - Noise emitted by machines and equipment
• ICS: 25.220.01 - Surface treatment and coating in general
• Technical Committee: VSN - Safety of machinery
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 07-Apr-2010
• Due Date: 30-Apr-2010
• Completion Date: 12-Apr-2010
• Directive: 98/37/EC - Machinery
• Mandate: M/079 - Mandate to CEN and CENELEC for standardization in the field of machines
• Ref Project: EN 14462:2005 - Surface treatment equipment - Noise test code for surface treatment equipment including its ancillary handling equipment - Accuracy grades 2 and 3

Relations

• Consolidated By: SIST EN 14462:2005+A1:2009 - Surface treatment equipment - Noise test code for surface treatment equipment including its ancillary handling equipment - Accuracy grades 2 and 3
• Effective Date: 18-Jan-2023
• Consolidated By: SIST EN 14462:2005+A1:2009 - Surface treatment equipment - Noise test code for surface treatment equipment including its ancillary handling equipment - Accuracy grades 2 and 3
• Effective Date: 19-Jan-2023
• Replaced By: SIST EN 14462:2005+A1:2009 - Surface treatment equipment - Noise test code for surface treatment equipment including its ancillary handling equipment - Accuracy grades 2 and 3
• Effective Date: 01-May-2010

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 14462:2005
01-maj-2005
1DSUDYH]DSRYUãLQVNRREGHODYR3RVWRSHNPHUMHQMDKUXSQRVWLQDSUDY]D
SRYUãLQVNRREGHODYRYNOMXþQR]GRGDMQLPLLQRGY]HPQLPLQDSUDYDPL5D]UHGD
WRþQRVWLLQ
Surface treatment equipment - Noise test code for surface treatment equipment including
its ancillary handling equipment - Accuracy grades 2 and 3
Oberflächenbehandlungsgeräte - Geräuschmessverfahren für
Oberflächenbehandlungsgeräte einschließlich ihrer Be- und Entladeeinrichtungen -
Genauigkeitsklassen 2 und 3
Equipements de traitement de surface - Code d'essai acoustique pour équipements de
traitement de surface y compris les équipements de manutention auxilliaires - Classes
de précision 2 et 3
Ta slovenski standard je istoveten z: EN 14462:2005
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
25.220.01 Površinska obdelava in Surface treatment and
prevleke na splošno coating in general
SIST EN 14462:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 14462:2005

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SIST EN 14462:2005
EUROPEAN STANDARD
EN 14462
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2005
ICS 17.120.20; 25.220.01
English version
Surface treatment equipment - Noise test code for surface
treatment equipment including its ancillary handling equipment -
Accuracy grades 2 and 3
Equipements de traitement de surface - Code d'essai Oberflächenbehandlungsgeräte - Geräuschmessverfahren
acoustique pour équipements de traitement de surface y für Oberflächenbehandlungsgeräte einschließlich ihrer Be-
compris les équipements de manutention auxilliaires - und Entladeeinrichtungen - Genauigkeitsklassen 2 und 3
Classes de précision 2 et 3
This European Standard was approved by CEN on 22 December 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14462:2005: E
worldwide for CEN national Members.

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SIST EN 14462:2005
EN 14462:2005 (E)
Contents
Page
Foreword.3
Introduction .4
1 Scope .5
2 Normative references .5
3 Terms and Definitions .6
4 Description of machinery family .8
5 Emission sound pressure level determination.8
5.1 Selection of measurement method.8
5.2 Selection of relevant work station(s) and other specified positions.8
5.3 Selection of measuring points for very large machines.9
5.4 Measurement uncertainties .9
6 Sound power level determination .9
6.1 Selection of measurement method.9
6.2 Method for very large machines.10
6.3 Measurement uncertainty .10
7 Installation and mounting conditions.10
8 Operating conditions.10
9 Information to be recorded .11
10 Information to be reported.11
11 Declaration and verification of noise emission values.12
Annex A (normative) List of surface treatment machines covered by this noise test code and further
requirements .14
Annex B (normative) Additional requirements for open-fronted spray booths and enclosed spray
booths .20
Annex C (informative) Example for the determination of the emission values for a machine without a
defined work station.23
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU directive 98/37/EC .29
Bibliography .30

2

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SIST EN 14462:2005
EN 14462:2005 (E)
Foreword
This document (EN 14462:2005) has been prepared by Technical Committee CEN/TC 271 “Surface treatment
equipment — Safety”, 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 August 2005, and conflicting national standards shall be withdrawn at the latest by
August 2005.
This document has been prepared under a mandate given to CEN by the European Commission and the European
Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
It augments the "C"-type safety standards prepared by CEN/TC 271. Its purpose is to provide a means of
determination, declaration and verification of noise emission for the equipment within the scope of this document.
The determination of noise emission values is a prerequisite for a manufacturer to assess the noise reduction
obtained at the design stage.
This document includes a Bibliography.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
3

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SIST EN 14462:2005
EN 14462:2005 (E)
Introduction
This noise test code provides manufacturers and third parties with the means to carry out noise emission
measurements, determine values for noise declaration purposes under the Machinery Directive 98/79/EC and
provides the means for their verification.
Noise emission characteristics include both emission sound pressure levels at workstations and sound power
levels. The determination of these characteristics is necessary for:
 manufacturers to declare the noise emitted;
 comparing the noise emitted by machines;
 purposes of noise control at the source during the design stage;
 estimation of noise emission (exposure) at the workplace or workstation.
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SIST EN 14462:2005
EN 14462:2005 (E)
1 Scope
This document specifies all the information necessary to carry out efficiently and under standardised conditions the
determination, declaration and verification of the airborne noise emission of surface treatment machines as stated
in Annex A. Surface treatment machines include but are not limited to
 machines for cleaning and pre-treatment of industrial item surfaces,
 machinery for coating and colour mixing,
 coating plants
and
 dryers, ovens and evaporating equipment.
This document describes the determination of emission sound pressure levels at work stations or other specified
positions as well as the determination of sound power levels for surface treatment machines as stated in Annex A.
This can be small single units (e.g. handheld atomising spraying equipment) and also complex machines with large
dimensions (e.g. machines for cleaning and pre-treatment of industrial item surfaces, spray booths, dryers), which
could also be linked.
In case of very large machines as defined in 3.10 the determination of sound power level may be very complicated
or cannot be done with a reasonable amount of work. Therefore in this document, the measurement for very large
machines is simplified by determining an averaged emission sound pressure level instead of the sound power level.
This document specifies noise measurement methods, installation/mounting and operation conditions that shall be
used for the test. The use of this document ensures the reproducibility of the determination of the noise emission
characteristics within specified limits determined by the grade of accuracy of the basic noise measurement method
used (see 5.1 and 6.1). Noise measurement methods allowed by this document are engineering methods (grade 2)
and survey methods (grade 3).
For continuous flow dryers for paper, board and foil (see EN 13023).
This document applies to surface treatment machines manufactured after the date of issue of this document.
2 Normative references
The following referenced documents 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.
EN 1539, Dryers and ovens, in which flammable substances are released — Safety requirements.
EN 1953, Atomising and spraying equipment for coating materials — Safety requirements.
EN 12215, Coating plants — Spray booths for application of organic liquid coating materials — Safety
requirements.
prEN 12581, Coating plants — Dip and electrophoretic coating machinery for application of organic liquid coating
materials — Safety requirements.
prEN 12621, Machinery for the supply and/or circulation of coating materials under pressure — Safety
requirements.
prEN 12753, Thermal cleaning plants (incinerators) for exhaust gas from surface treatment plants — Safety
requirements.
5

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SIST EN 14462:2005
EN 14462:2005 (E)
prEN 12757-1, Mixing machinery for coating material — Safety requirements — Part 1: Mixing machinery for use in
vehicle refinishing.
prEN 12921-1, Machines for surface cleaning and pretreatment of industrial items using liquids or vapours — Part
1: Common safety requirements.
prEN 12921-2, Machines for surface cleaning and pretreatment of industrial items using liquids or vapours — Part
2: Safety of machines using water based cleaning liquids.
prEN 12921-3, Machines for surface cleaning and pretreatment of industrial items using liquids or vapours — Part
3: Safety of machines using flammable cleaning liquids.
prEN 12921-4, Machines for surface cleaning and pretreatment of industrial items using liquids or vapours — Part
4: Safety of machines using halogenated solvents.
prEN 12981, Coating plants — Spray booths for application of organic powder coating material — Safety
requirements.
EN 13355; Coating plants — Combined booths — Safety requirements.
EN 61672-1, Electroacoustics - Sound level meters – Part 1: Specifications (IEC 61672-1:2002).
EN ISO 3744, Acoustics — Determination of sound power levels of noise sources using sound pressure —
Engineering method in an essentially free field over a reflecting plane (ISO 3744:1994).
EN ISO 3746, Acoustics — Determination of sound power levels of noise sources using sound pressure — Survey
method using an enveloping measurement surface over a reflecting plane (ISO 3746:1995).
EN ISO 3747, Acoustics — Determination of sound power levels of noise sources using sound pressure —
Comparison method for use in situ (ISO 3747:2000).
EN ISO 4871:1996, Acoustics — Declaration and verification of noise emission values of machinery and equipment
(ISO 4871:1996).
EN ISO 9614-1, Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 1:
Measurement at discrete points (ISO 9614-1:1993).
EN ISO 9614-2, Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 2:
Measurement by scanning (ISO 9614-2:1996).
EN ISO 11201, Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound
pressure levels at a work station and at other specified positions — Engineering method in an essentially free field
over a reflecting plane (ISO 11201:1995).
EN ISO 11202, Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound
pressure levels at a work station and at other specified positions — Survey method in situ (ISO 11202:1995).
EN ISO 11204, Acoustics — Noise emitted by machinery and equipment — Measurement of emission sound
pressure levels at a work station and at other specified positions — Method requiring environmental corrections
(ISO 11204:1995).
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
emission sound pressure, p
sound pressure, at a specified position near a noise source, when the source is in operation under specified
operating and mounting conditions on a reflecting plane surface excluding the effects of background noise as well
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EN 14462:2005 (E)
as the effects of reflections other than those from the plane or planes permitted for the purpose of the test. It is
expressed in pascals
[EN ISO 11200:1995]
3.2
emission sound pressure level, L
p
2
ten times the logarithm to the base 10 of the ratio of the square of the emission sound pressure, p (t), to the square
2
of the reference sound pressure, p , measured with a particular time weighting and a particular frequency
0
weighting, selected from those defined in EN 61672-1. It is expressed in decibels. The reference sound pressure is
20 µPa
[EN ISO 11200:1995]
The emission sound pressure level of surface treatment equipment is determined at specified positions in
accordance with this document
3.3
average emission sound pressure level L
p
energy-average of the emission sound pressure levels L at several microphone positions around the machine
p
3.4
sound power, W
rate per unit time at which airborne sound energy is radiated by a source. It is expressed in watts
[EN ISO 3740:2000]
3.5
sound power level, L
W
ten times the logarithm to the base 10 of the ratio of the sound power radiated by the source under test to the
-12
reference sound power. It is expressed in decibels. The reference sound power is 1 pW (10 W).
Frequency weighting or the width of the frequency band used shall be indicated, for example, A-weighted sound
power level (L )
WA
[EN ISO 3740:2000]
3.6
work station, operator’s position
position in the vicinity of the machine under test which is intended for an operator
[EN ISO 11200:1995]
3.7
specified position
position defined in relation to a machine including, but not limited to, an operator’s position. The position can be a
single fixed point, or a combination of points along a path or on a surface located at a specified distance from the
machine
[EN ISO 11200:1995]
3.8
reference box
hypothetical surface which is the smallest rectangular parallelepiped that just encloses the source and terminates
on the reflecting plane or planes
[EN ISO 3744:1995]
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SIST EN 14462:2005
EN 14462:2005 (E)
3.9
measurement surface
hypothetical surface of area S, enveloping the source, on which the measurement points are located. The
measurement surface terminates on one or more reflecting planes
[EN ISO 3744:1995]
3.10
very large machines
very large machines in the meaning of this document are machines with dimensions of about 15 m in length or
more or about 5 m in height or more. Machines extending over several floors are regarded as very large machines,
in every case
3.11
work cycle
operation of a machine producing a periodic fluctuation of noise emission or a series of working processes with
different noise emissions. One characteristic work cycle can be defined as operating conditions for the machine
under test
4 Description of machinery family
This document is applicable to the surface treatment of the machines listed in Annex A.
5 Emission sound pressure level determination
5.1 Selection of measurement method
A-weighted emission sound pressure levels L at the work station and other specified positions and – if required in
pA
the relevant Annex – C-weighted peak emission sound pressure levels shall be determined in accordance with one
of the basic noise emission standards;
 EN ISO 11201 (grade 2: engineering);
 EN ISO 11202 (grade 3: survey);
 EN ISO 11204 (grade 2 or grade 3).
The application of EN ISO 11201 (grade 2) is recommended for machinery which can be tested in an essentially
free field over a reflecting plane (e.g. outdoor test location or adequate test room).
If machines cannot be measured in an essentially free field over a reflecting plane the emission sound pressure
level should be determined according to EN ISO 11204 (with accuracy grade 2). Where this document is not
applicable, EN ISO 11204 (with accuracy grade 3) or EN ISO 11202 (grade 3) shall be applied.
Grade 2 (engineering) shall be used whenever possible.
5.2 Selection of relevant work station(s) and other specified positions
The positions where the emission sound pressure levels are to be determined, are specified in the Annex A for the
particular machine groups.
If fixed work stations other than those specified in Annex A exist, the emission sound pressure levels in addition
shall be determined at these positions.
When no identified or fixed work stations exist, one or more measuring points shall be arranged on a measuring
path surrounding the machine at a distance of 1 m (distance from the reference box) and a height of 1,6 m above
the floor or access platform. For machines comprising several floors additional measuring paths are necessary for
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EN 14462:2005 (E)
each floor. If the machine is placed near to a boundary surface with a distance less than 2 m the measuring path
shall end at this surface.
If machines are installed in several machine units separated from each other and if the distance between two units
exceeds 2 m, each unit shall be considered to be an individual machine when defining the measuring points. Such
machines shall always be considered as very large machines (see 5.3).
The measuring points shall be arranged on all sides of the reference box where the measuring path can be
defined. The distance between single measuring points shall be less than 7 m. A more dense arrangement is
required if the sound pressure level difference of neighbouring measuring points is more than 5 dB (A).
The microphone positions shall be located according to the following procedure:
the measuring path on each side of the machine shall be considered on its own and so subdivided that the result is
the smallest possible number of equal-sized sections with a maximum length of 7 m. The microphone positions
shall be located in the middle of each section. If additional measuring points are required these shall be located on
both ends of the chosen sections.
When the application of the provisions of this clause leads to microphone positions that are not practical or may be
dangerous, closest positions that are practical or not dangerous shall be chosen.
An example for the arrangement of measuring points is shown in Annex C.
The A-weighted emission sound pressure level L shall be determined at all defined measuring points in
pA
accordance with the relevant basic standard. The highest measured value on each floor and the position of the
corresponding measuring point shall be reported.
5.3 Selection of measuring points for very large machines
For very large machines (3.10), instead of the sound power level the emission sound pressure levels shall be
determined at several positions in the following way:
The measuring points shall be arranged on a measuring path as described in 5.2. For machines comprising several
floors one measuring path is required for every floor. The measuring points shall be located according to the
procedure described in 5.2.
The A-weighted emission sound pressure level L shall be determined at all defined measuring points in
pA
accordance with the relevant basic standard. The energy-average of the emission sound pressure levels L at all
pA
microphone positions – average emission sound pressure level L – shall be the characteristic value for
pA
description of noise emission.
5.4 Measurement uncertainties
The measurement uncertainties for the individual measurement method are those indicated in the corresponding
basic standards (see 5.1) in terms of standard deviation of reproducibility. The resulting uncertainty K for A-
A
weighted levels which shall be considered for noise emission declaration is given in Clause 11.
6 Sound power level determination
6.1 Selection of measurement method
A-weighted sound power levels L shall be determined in accordance with one of the basic noise emission
WA
standards:
 EN ISO 3744 (grade 2: engineering);
 EN ISO 3746 (grade 3: survey);
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EN 14462:2005 (E)
 EN ISO 3747 (grade 2 and 3: engineering and survey);
 EN ISO 9614-1 (grades 1, 2, 3);
 EN ISO 9614-2 (grades 2, 3).
Grade 2 (engineering) shall be used whenever possible. When EN ISO 3744 or EN ISO 3746 is used the
measurement surface shall be the parallelepiped one.
NOTE EN ISO 3740 gives guidance to the choice of the most appropriate measurement method. EN ISO 3744 (grade 2) or
EN ISO 3746 (grade 3) are appropriate methods for many applications when machines can be measured outdoors or in an
industrial working room. In an approximately reverberant field EN ISO 3747 allows the determination of sound power levels with
grade 2 by using a reference sound source (comparison method).
In cases of extremely bad environmental conditions (reverberant field and/or high levels of extraneous noise) intensity methods
according to EN ISO 9614-1 (measurement at discrete points) or according to EN ISO 9614-2 (scanning method) can be the
only applicable method.
6.2 Method for very large machines
If the determination of the sound power level is required for declaration purposes and the machine is very large
(see definition 3.10), emission sound pressure levels shall be determined according to 5.3 instead of the sound
power level.
In this case the average emission sound pressure levelL shall be determined and declared.
pA
6.3 Measurement uncertainty
The measurement uncertainties for the individual measurement method are those indicated in the corresponding
basic standards (see 6.1) in terms of standard deviation of reproducibility. The resulting uncertainty K for A-
A
weighted levels which shall be considered for noise emission declaration is given in 11.
7 Installation and mounting conditions
In general, complex machines for surface treatment consisting of the different components will be mounted at the
destination; thus the installation conditions are given.
If individual machines of smaller dimensions are measured in rooms, outside or within test rooms the machine shall
be installed, mounted and linked in accordance with the manufacturer’s written instructions (to ensure the intended
use). The installation chosen for noise measurement shall be indicated in the information to be recorded.
The installation and mounting conditions shall be identical for the determination of both sound power level and
emission sound pressure levels at specified positions, and for declaration purposes.
8 Operating conditions
Since noise emissions depend on the corresponding operation mode of the machines, the operating conditions are
specified in general in order to obtain comparable measuring results. The test shall be carried out under normal
operating conditions including all sources of noise, normally present when the machine is under operation (e.g.
pump, fan, conveyor).
Therefore, Annex A of this document defines the operating conditions for the machines under test. When, for a
particular machine listed in Annex A, operating conditions defined in Annex A cannot be used, the reason shall be
given and the conditions actually used shall be recorded, reported and declared.
In case of multi-purpose machines, the operating conditions shall be those of the purpose which gives the highest
noise emissions. In case of different working processes that together constitute a characteristic working cycle, it is
this cycle that is defined as the operating conditions.
10

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SIST EN 14462:2005
EN 14462:2005 (E)
Noise reduction measures which are part of the machine shall be installed during measurements.
The operating conditions shall be identical for the determination of both sound power levels and emission sound
pressure levels at specified positions and for declaration purposes.
9 Information to be recorded
The information to be recorded shall include all the information required by the relevant basic noise emission
standards used for the machine under test:
 acoustic environment,
 instrumentation,
 acoustical data.
Any deviation(s) from this noise test code or from the basic standard(s) upon which it is based shall be recorded
together with the technical justification for such deviation(s).
10 Information to be reported
The information to be reported shall at least include all the information for declaration and verification of noise
emission values. The required information is included in the relevant basic standards, i.e.:
a) type, classification and technical data, dimensions, as well as manufacturer, type, machine serial number and
year of manufacture of the machine tested,
b) installation and operating conditions relevant to noise emission during the test (see Clauses 7 and 8),
c) basic standard(s) applied for the determination of noise emission (see Clauses 5 and 6), giving, where
applicable, reasons for not using grade 2 methods,
d) acoustical data
 emission sound pressure level at work stations (L ),
pA
 if required, A-weighted sound power level (L ) or average emission sound pressure level (L ),
WA pA
 if required, impulsive noise content at measuring points,
 if required, L at measuring points,
pCpeak
 if required, emission sound pressure level in frequency bands,
 when work cycles are split into sub-cycles, measuring results shall be provided for each sub-cycle,
 individual sound pressure levels measured along the measuring path on large machin
...