SIST EN 14462:2015

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

This European Standard specifies standardised conditions for the determination, declaration and verification of airborne noise emission of the following surface treatment equipment:
-  machinery for cleaning and pre-treatment of industrial item surfaces (see EN 12921-1, EN 12921-2, EN 12921-3, EN 12921-4);
-  machinery for the supply and/or circulation of coating materials under pressure (see EN 12621, EN 12757-1);
-  atomising and spraying equipment for coating materials (see EN 1953, EN 50050-1, EN 50050-2, EN 50050-3, EN 50059, EN 50176, EN 50177, EN 50348);
-  coating plants (see EN 12215, EN 12581, EN 12981, EN 13355, EN 50223);
-  dryers, ovens and evaporating equipment (see EN 1539);
-  thermal cleaning plants (incinerators) for exhaust gas from surface treatment plants (see EN 12753);
-  dry-ice blasting equipment.
For the above surface treatment machinery, this European Standard gives provisions for the determination of
-  emission sound pressure levels at workstations and/or other specified positions and
-  sound power levels.
This European Standard specifies noise emission 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 emission measurement method used (see Clauses 4 and 5). Noise emission measurement methods allowed by this document are engineering methods (grade 2) and survey methods (grade 3).
This European Standard does not apply to machines not explicitly listed in the scope
-  plating machinery,
-  plasma surface treatment machinery,
-  printing, paper converting and paper making machinery and auxiliary equipment (see EN 13023),
-  abrasive blasting machinery see EN 1265.

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

Dieses Dokument präzisiert alle notwendigen Informationen zur Bestimmung, Angabe und Überprüfung der luftgetragenen Geräusch-Emissionswerte von folgenden Oberflächenbehandlungsgeräten:
   Maschinen zur Oberflächenreinigung und -vorbehandlung von industriellen Produkten (siehe EN 12921-1, EN 12921-2, EN 12921-3, EN 12921-4),
   Förder- und Umlaufanlagen für Beschichtungsstoffe unter Druck (siehe EN 12621, EN 12757-1),
   Spritz- und Sprühgeräte für Beschichtungsstoffe (siehe EN 1953, EN 50050-1, EN 50050-2, EN 50050-3, EN 50059, EN 50177, EN 50348),
   Beschichtungsanlagen (siehe EN 12215, EN 12581, EN 12981, EN 13355, EN 50223),
   Trockner, Öfen und Verdunstungseinrichtungen (siehe EN 1539),
   Thermische Reinigungssysteme für Abluft aus Anlagen zur Oberflächenbehandlung (siehe EN 12753),
   Einrichtungen zum Trockeneisstrahlen.
Für obengenannte Maschinen zur Oberflächenbehandlung beschreibt diese Europäische Norm Anforderungen für die Bestimmung der
   Emissionsschalldruckpegel an Arbeitsplätzen und / oder anderen definierten Orten und
   Schallleistungspegel.
Diese Norm legt Geräuschmessverfahren, Aufstellungs- und Befestigungsbedingungen sowie die Betriebsbedingungen für die Geräuschmessung fest. Die Anwendung dieser Norm stellt die Reproduzier-barkeit der Bestimmung der Kenndaten für das Geräuschmessverfahren innerhalb festgelegter Grenzen sicher, die durch die Genauigkeitsklasse der verwendeten Rahmenmessnorm (siehe Abschnitte 4 und 5) bestimmt werden. Diese Norm erlaubt Geräuschmessungen der Genauigkeitsklassen 2 und 3.
Diese Norm gilt nicht für Maschinen, die nicht im Anwendungsbereich aufgeführt sind:
   Galvanikmaschinen,
   Plasma-Oberflächenbehandlungsmaschinen,
   Druck-, Papierverarbeitungs- und Papierherstellungsmaschinen (siehe EN 13023),
   Strahlmaschinen (siehe EN 1265).

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

La présente Norme européenne spécifie toutes les informations nécessaires pour procéder avec efficacité et
dans des conditions normalisées, à la détermination, à la déclaration et à la vérification du bruit aérien émis
par les machines de traitement de surface suivantes :
- les machines de nettoyage et de prétraitement de surfaces de pièces industrielles (voir l’EN 12921-1,
l’EN 12921-2, l’EN 12921-3, l’EN 12921-4) ;
- les machines pour la fourniture et/ou la circulation des matériaux de revêtement sous pression (voir
l’EN 12621, l’EN 12757-1) ;
- les équipements d’atomisation ou de pulvérisation pour les matériaux de revêtement (voir l’EN 1953,
l’EN 50050-1, l’EN 50050-2, l’EN 50050-3, l’EN 50059, l’EN 50176, l’EN 50177, l’EN 50348) ;
- les installations d’application (voir l’EN 12215, l’EN 12581, l’EN 12981, l’EN 13355, l’EN 50223) ;
- les enceintes de séchage, fours et équipements d'évaporation (voir l’EN 1539) ;
- les installations de nettoyage thermique (incinérateurs) pour l’air extrait des installations de traitement
de surface (voir l’EN 12753) ;
- les équipements de projection de glace sèche.
Pour les équipements de traitement de surface ci-dessus, la présente Norme européenne fournit des
dispositions pour la détermination des :
- niveaux d'émission de pression acoustique aux postes de travail et/ou en d'autres positions spécifiées ;
- niveaux de puissance acoustique.
La présente Norme européenne spécifie les méthodes de mesurage acoustique et les conditions
d'installation/montage et de fonctionnement qui doivent être utilisées pour l'essai. L’utilisation du présent
document garantit la reproductibilité de la détermination des caractéristiques d’émission sonore dans les
limites spécifiées déterminées par la classe de précision de la méthode de mesurage acoustique de base
utilisée (voir Articles 4 et 5). Les méthodes de mesurage acoustique autorisées par le présent document sont
des méthodes d’expertise (classe 2) et des méthodes de contrôle (classe 3).
La présente Norme européenne ne s’applique pas aux machines qui ne sont pas explicitement référencées
dans le domaine d’application :
- les machines à plaquer ;
- les machines de traitement de surface au plasma ;
- les machines d'impression, de transformation, de fabrication et de finition du papier (voir l’EN 13023) ;
- les machines de projection d'abrasifs (voir l’EN 1265).

Naprave za površinsko obdelavo - Preskusni postopek za merjenje hrupa naprav za površinsko obdelavo, vključno z dodajnimi in odvzemnimi napravami - Razreda točnosti 2 in 3

Ta evropski standard določa standardizirane pogoje za določanje, objavljanje in preverjanje emisij hrupa naprav za površinsko obdelavo:
– strojev za čiščenje in predobdelavo industrijskih površin (glej standarde EN 12921-1, EN 12921-2, EN 12921-3, EN 12921-4);
– strojev za oskrbo in/ali širjenje premaznih materialov s pomočjo tlaka (glej standarda EN 12621, EN 12757-1);
– pršilne in škropilne opreme za premazne materiale (glej standarde EN 1953, EN 50050-1, EN 50050-2, EN 50050-3, EN 50059, EN 50176, EN 50177, EN 50348);
– premaznih naprav (glej standarde EN 12215, EN 12581, EN 12981, EN 13355, EN 50223);
– sušilnikov, peči in hlapilne opreme (glej standard EN 1539);
– termalnih čistilnih naprav (sežigalnic) za izpušne pline iz naprav za površinsko obdelavo (glej standard EN 12753);
– opreme za čiščenje s suhim ledom.
Za zgoraj navedene stroje za površinsko obdelavo vsebuje ta evropski standard določbe za določanje
– emisij ravni hrupa na delovnih postajah in/ali drugih določenih mestih ter
– ravni zvočne moči.
Ta evropski standard določa postopke za merjenje emisij hrupa, zahteve za namestitev/montažo in pogoje delovanja, ki jih je treba uporabiti za preskus. Uporaba tega dokumenta zagotavlja ponovljivost določanja značilnosti emisij hrupa v določenih mejah, ki jih določa razred točnosti uporabljene osnovne metode merjenja emisij hrupa (glej točki 4 in 5). Metode merjenja emisij hrupa, ki jih dovoljuje ta dokument, so inženirske metode (razred 2) in metode raziskovanja (razred 3).
Ta evropski standard se ne uporablja za stroje, ki niso izrecno navedeni:
– stroji za galvaniziranje,
– stroji za površinsko obdelavo s plazmo,
– stroji za tiskanje, predelavo papirja in izdelavo papirja ter pomožna oprema (glej standard EN 13023),
– abrazivni čistilni stroji (glej standard EN 1265).

General Information

• Status: Published
• Public Enquiry End Date: 28-Feb-2013
• Publication Date: 08-Apr-2015
• 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: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 13-Mar-2015
• Due Date: 18-May-2015
• Completion Date: 09-Apr-2015
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Ref Project: EN 14462:2015 - Surface treatment equipment - Noise test code for surface treatment equipment including its ancillary handling equipment - Accuracy grades 2 and 3

Relations

• Replaces: 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-2015

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Oberflächenbehandlungsgeräte - Geräuschmessverfahren für Oberflächenbehandlungsgeräte einschließlich ihrer Be- und Entladeeinrichtungen - Genauigkeitsklassen 2 und 3Equipements 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 3Surface treatment equipment - Noise test code for surface treatment equipment including its ancillary handling equipment - Accuracy grades 2 and 325.220.01Površinska obdelava in prevleke na splošnoSurface treatment and coating in general17.140.20Emisija hrupa naprav in opremeNoise emitted by machines and equipmentICS:Ta slovenski standard je istoveten z:EN 14462:2015SIST EN 14462:2015en,fr,de01-maj-2015SIST EN 14462:2015SLOVENSKI
STANDARDSIST EN 14462:2005+A1:20091DGRPHãþD



SIST EN 14462:2015



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14462
February 2015 ICS 17.140.20; 25.220.01 Supersedes EN 14462:2005+A1:2009English 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 acoustique pour équipements de traitement de surface, y compris les équipements de manutention auxilliaires - Classes de précision 2 et 3
Oberflächenbehandlungsgeräte - Geräuschmessverfahren für Oberflächenbehandlungsgeräte - einschließlich ihrer Be-und Entladeeinrichtungen - Genauigkeitsklassen 2 und 3 This European Standard was approved by CEN on 29 November 2014.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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:
Avenue Marnix 17,
B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14462:2015 ESIST EN 14462:2015



EN 14462:2015 (E) 2 Contents Page Foreword .3 Introduction .4 1 Scope .5 2 Normative references .5 3 Terms and definitions .7 4 Determination of A-weighted emission sound pressure level at workstations and other specified positions .9 5 Determination of A-weighted sound power level . 10 6 Measurement uncertainties . 10 7 Mounting conditions. 11 8 Operating conditions . 11 9 Information to be recorded . 12 10 Information to be reported . 12 11 Declaration and verification of noise emission values . 13 Annex A (normative)
Operating conditions and measurement positions for the determination of noise emission of surface treatment machinery . 15 Annex B (normative)
Work stations for manually operated open-fronted spray booths and enclosed spray booths . 19 Annex C (informative)
Example for the determination of the A-weighted emission sound pressure level values for a machine without a defined work station . 21 Annex D (informative)
Noise emission determination procedure . 27 Annex ZA (informative)
Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC . 29 Bibliography . 30
SIST EN 14462:2015



EN 14462:2015 (E) 3 Foreword This document (EN 14462:2015) 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 2015 and conflicting national standards shall be withdrawn at the latest by August 2015. 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. This document supersedes EN 14462:2005+A1:2009. 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 2006/42/EC, see informative Annex ZA, which is an integral part of this document. This document includes the following significant technical changes with respect to EN 14462:2005+A1:2009: — integration of dry ice blasting equipment in A.1.2; — integration of automatic electrostatic application equipment for flammable flock material (EN 50223) in A.3.1. 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. 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, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 14462:2015



EN 14462:2015 (E) 4 Introduction This noise test code gives assistance to carry out noise emission measurements and to determine values for noise declaration purposes under the Machinery Directive 2006/42/EC and provides the means for their verification. Annex D with Figure D.1 and Figure D.2 provides an overview on the noise determination procedure. 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 exposure at the workstation(s). Noise testing of the machinery can be done at the manufacturer's site, at the place of mounting or at any other adequate location. SIST EN 14462:2015



EN 14462:2015 (E) 5 1 Scope This European Standard specifies standardized conditions for the determination, declaration and verification of airborne noise emission of the following surface treatment equipment: — machinery for cleaning and pre-treatment of industrial item surfaces (see EN 12921-1, EN 12921-2, EN 12921-3, EN 12921-4); — phosphating machinery; — plating machinery; — plasma surface treatment machinery; — machinery for the supply and/or circulation of coating materials under pressure (see EN 12621, EN 12757-1); — atomizing and spraying equipment for coating materials (see EN 1953, EN 50050-1, EN 50050-2, EN 50050-3, EN 50059, EN 50176, EN 50177, EN 50348); — coating plants (see EN 12215, EN 12581, EN 12981, EN 13355, EN 50223); — dryers, ovens and evaporating equipment (see EN 1539); — thermal cleaning plants (incinerators) for exhaust gas from surface treatment plants (see EN 12753); — dry-ice blasting equipment. For the above surface treatment machinery, this European Standard gives provisions for the determination of — emission sound pressure levels at workstations and/or other specified positions and — sound power levels. This European Standard specifies noise emission measurement methods, mounting and operating 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 emission measurement method used (see Clause 4 and Clause 5). Noise emission measurement methods allowed by this document are engineering methods (grade 2) and survey methods (grade 3). This European Standard does not apply to machines not explicitly listed in the scope: — printing, paper converting and paper making machinery and auxiliary equipment (see EN 13023); — abrasive blasting machinery see EN 1265. 2 Normative references The 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 any amendments) applies. EN 1539, Dryers and ovens, in which flammable substances are released — Safety requirements SIST EN 14462:2015



EN 14462:2015 (E) 6 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 EN 12581, Coating plants — Machinery for dip coating and electrodeposition of organic liquid coating materials — Safety requirements EN 12621, Machinery for the supply and circulation of coating materials under pressure — Safety requirements EN 12753, Thermal cleaning systems for exhaust gas from surface treatment equipment — Safety requirements EN 12757-1, Mixing machinery for coating materials — Safety requirements — Part 1: Mixing machinery for use in vehicle refinishing EN 12921-1, Machines for surface cleaning and pre-treatment of industrial items using liquids or vapours — Part 1: Common safety requirements EN 12921-2, Machines for surface cleaning and pre-treatment of industrial items using liquids or vapours — Part 2: Safety of machines using water based cleaning liquids EN 12921-3, Machines for surface cleaning and pre-treatment of industrial items using liquids or vapours — Part 3: Safety of machines using flammable cleaning liquids EN 12921-4, Machines for surface cleaning and pretreatment of industrial items using liquids and vapours — Part 4: Safety of machines using halogenated solvents EN 12981, Coating plants — Spray booths for application of organic powder coating material — Safety requirements EN 13355, Coating plants — Combined booths — Safety requirements EN 50223, Stationary electrostatic application equipment for ignitable flock material — Safety requirements EN ISO 3744:2010, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010) EN ISO 3746, 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 plane (ISO 3746) EN ISO 3747, Acoustics — Determination of sound power levels and sound energy levels of noise sources using sound pressure — Engineering/survey methods for use in situ in a reverberant environment (ISO 3747) EN ISO 4871:2009, Acoustics — Declaration and verification of noise emission values of machinery and equipment (ISO 4871:1996) EN ISO 9614-2, Acoustics — Determination of sound power levels of noise sources using sound intensity — Part 2: Measurement by scanning (ISO 9614-2) EN ISO 11201:2010, Acoustics — Noise emitted by machinery and equipment — Determination 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 (ISO 11201:2010) SIST EN 14462:2015



EN 14462:2015 (E) 7 EN ISO 11202, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections (ISO 11202) EN ISO 11204, Acoustics — Noise emitted by machinery and equipment — Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections (ISO 11204) 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 as the effects of reflections other than those from the plane or planes permitted for the purpose of the test Note 1 to entry: Emission sound pressure is expressed in pascals. [SOURCE: EN ISO 11201:2010, 3.2, modified] 3.2 emission sound pressure level Lp ten times the logarithm to the base 10 of the ratio of the square of the emission sound pressure, p2(t), to the square of the reference sound pressure, p02 (the reference sound pressure is 20 µPa), measured with a particular time weighting and a particular frequency weighting, selected from those defined in EN 61672-1 Note 1 to entry: Emission sound pressure level is expressed in decibels. Note 2 to entry: The emission sound pressure level of surface treatment equipment is determined at specified positions in accordance with this document. [SOURCE: EN ISO 11201:2010, 3.3, modified] 3.3 average emission sound pressure level Lp energy-average of the emission sound pressure levels Lp at several microphone positions around the machine 3.4 sound power W rate per unit time at which airborne sound energy is radiated by a source Note 1 to entry: Sound power is expressed in watts. [SOURCE: EN ISO 3744:2010, 3.20, modified] 3.5 sound power level LW ten times the logarithm to the base 10 of the ratio of the sound power radiated by the source under test to the reference sound power, which is 1 pW (10−12 W) SIST EN 14462:2015



EN 14462:2015 (E) 8 Note 1 to entry: Sound power level is expressed in decibels. Note 2 to entry: The frequency weighting or the width of the frequency band used is indicated, for example, A-weighted sound power level (LWA). [SOURCE: EN ISO 3744:2010, 3.21, modified] 3.6 work station operator’s position position in the vicinity of the machine under test which is intended for an operator Note 1 to entry: The work station represents the occasional or permanent intervention position designed for operators and situated inside or in the vicinity of the machine under test. [SOURCE: EN ISO 11201:2010, 3.11, modified] 3.7 specified position position defined in relation to a machine including, but not limited to, an operator’s position Note 1 to entry: 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. [SOURCE: EN ISO 11201:2010, 3.13, modified] 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 [SOURCE: EN ISO 3744:2010, 3.10, modified] 3.9 measurement surface hypothetical surface of area S, enveloping the source, on which the measurement positions are located and terminating on one or more reflecting planes [SOURCE: EN ISO 3744:2010, 3.14, modified] 3.10 very large machine machine with dimensions of 7 m in length or more or 4 m in height or more Note 1 to entry: 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 that repeats itself Note 1 to entry: One characteristic work cycle can be defined as the operating conditions for the machine under test. SIST EN 14462:2015



EN 14462:2015 (E) 9 4 Determination of A-weighted emission sound pressure level at workstations and other specified positions 4.1 General A-weighted emission sound pressure levels LpA shall be determined according to one of the following basic standards: — EN ISO 11201 (grade 2) for machinery which can be tested in an essentially free field over a reflecting plane (e.g. outdoor test location or adequate test room); — EN ISO 11202 (grade 2 or grade 3) or EN ISO 11204 (grade 2 or grade 3), for machinery which cannot be tested in an essentially free field over a reflecting plane: — where ever possible, grade 2 methods shall be used; — if grade 3 methods are used, a justification shall be recorded and reported. NOTE For the purpose of reducing noise at source at the design stage, it is useful to determine emission sound pressure levels at workstations in frequency bands. These levels can be obtained using these basic standards. 4.2 Measurement positions If workstations are defined, the A-weighted emission sound pressure shall be determined at the workstations. Annex A specifies the measurement positions for particular surface treatment machines. If no workstation is defined, or Annex A does not specify measurement positions, the measurement positions shall be located on a path at 1,6 m above the floor and 1 m from the external surface of the machine. The location of these points and the sound pressure levels measured shall be indicated in the test report and in the noise declaration. The maximum distance between two consecutive points shall be 2 m. In this case, the highest value measured shall be taken as the A-weighted emission sound pressure level for the machine. The following additional requirements apply: — if the application of the provisions leads to measurement positions that are not practical and/or dangerous, closest positions that are practical and/or not dangerous shall be chosen. For a machine comprising several floors, individual measurement positions shall be defined on each floor; — for machines placed at a distance of less than 2 m from a boundary surface, there shall be no measurement positions on the side facing the boundary; — for installations consisting of several machines, individual measurement positions shall be defined — for any individual machine of the installation, if the distance to all neighbouring machines exceeds 2 m; — for parts of the installation, for which the distances between neighbouring machines do not exceed 2 m; — for the complete installation, if all distances between neighbouring machines do not exceed 2 m. Installations consisting of several machines shall always be considered as very large machines (see 5.2). See Annex C, Figure C.1 and Figure C.2, for examples of the arrangement of measurement positions. SIST EN 14462:2015



EN 14462:2015 (E) 10 5 Determination of A-weighted sound power level 5.1 General A-weighted sound power levels LWA shall be determined according to one of the following basic standards: — EN ISO 3744 (grade 2); — EN ISO 3746 (grade 3); — EN ISO 3747 (grade 2 and grade 3); — EN ISO 9614-2 (grades 2 and grade 3). Where ever possible, grade 2 methods shall be used. If grade 3 methods are used, a justification shall be recorded and reported. When EN ISO 3744 or EN ISO 3746 is used the measurement surface shall be the parallelepiped one. NOTE EN ISO 3744 (grade 2) or EN ISO 3746 (grade 3) are appropriate methods for many applications when machines can be measured outdoors or indoors in an adequate environment. 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 9614-2 (scanning method) can be the only applicable method. 5.2 Measurement positions for very large machines For machines longer than 7 m, instead of the A-weighted sound power level, A-weighted emission sound pressure levels shall be determined at points located around the machine. NOTE Compared to the determination of sound power levels this procedure requires less time and effort. The measurement positions shall be located on a path at 1,6 m above the floor and 1 m from the external surface of the machine. The maximum distance between two consecutive points shall be 2 m. For machines longer than 6 m, in areas far from dominant sound sources the maximum distance between two consecutive points may be 2 m. The energy-average LpA of the emission sound pressure levels LpA at all measurement positions, shall be the characteristic value for the description of noise emission. The location of these points and the sound pressure levels measured shall be indicated in the test report and in the noise declaration. 6 Measurement uncertainties The total measurement uncertainty of the noise emission values determined according to this European Standard is depending on the standard deviation of reproducibility of the measurement 20Rσ given by the applied noise emission measurement method and the uncertainty associated with the instability of the operating and mounting conditions for the machine 2omcσ. The resulting total standard deviation totσ is then calculated as: SIST EN 14462:2015



EN 14462:2015 (E) 11 2220omcRtotσσσ+= The upper bound value of 0Rσ is about 1,5 dB for the grade 2 measurement methods dealing with the determination of the emission sound pressure level or the sound power level. NOTE 1 For more information on measurement uncertainty, see EN ISO 11201:2010, Clause 11 and Annex C, or EN ISO 3744:2010, Clause 9 and Annex H. NOTE 2 For machines with a rather constant noise emission, a value of 0,5 dB for omcσ can apply. In other cases, e.g. a large influence of the material flow into and out of the machine or material flow that varies in an unpredictable manner, it is possible that a value of 2 dB may be more appropriate. Methods to determine omcσ are described in the basic measurement standards. The expanded measurement uncertainty U, in decibels, shall be calculated with k = 2, the coverage factor, for two-sided normal distribution at confidence level of 95 %, from totkUσ⋅= NOTE 3 The expanded measurement uncertainty depends on the desired confidence level. For the purpose of comparing the result with a limit value, it is appropriate to apply the coverage factor for a one-sided normal distribution. In that case, the coverage factor k = 1,6 corresponds to a 95 % confidence level. Further information is given in EN ISO 4871. Note that the expanded measurement uncertainty U is denoted K in EN ISO 4871. NOTE 4 The expanded measurement uncertainty as described in this European Standard does not include the standard deviation of production which is used in EN ISO 4871 for the purpose of making a noise declaration for batches of machines. 7 Mounting conditions Machines shall be mounted in accordance with the manufacturer’s instructions. Mounting instructions for applicators are given in Annex A. If no manufacturer’s mounting instructions are given, mounting conditions used shall be recorded and reported. NOTE In general, complex machines for surface treatment consisting of different components will only be mounted at the place of operation; thus, the mountings conditions are given. The 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 The test shall be carried out with — all sources of noise which are normally present when the machine is under operation (e.g. pump, fan, conveyor), — all noise reduction measures which are part of the machine. Annex A defines the operating conditions for specific machinery. SIST EN 14462:2015



EN 14462:2015 (E) 12 If operating conditions defined in Annex A cannot be used, the reason shall be given and the conditions used shall be recorded, reported and declared. Measurement shall cover the normal work cycle. The work cycle used for the test shall be described precisely in the test report. For multi-purpose machines, the operating condition with the highest noise emission shall be chosen. Idling periods that are not compulsory for the operation condition chosen shall not be included into the test. Operating conditions shall be identical for determination and declaration of A-weighted sound power level and A-weighted emission sound pressure level. NOTE Noise emission depends on the operation mode of the machine. The specification of operating conditions allows noise emission data to be compared. 9 Information to be recorded The information to be recorded during the test shall include all the information required by the relevant basic noise emission standards used for the machine under test: — acoustic environment, — instrumentation, — acoustic data. Any deviation(s) from this noise test code or from the basic standard(s) used, shall be recorded together with the technical justification for such deviation(s). 10 Information to be reported The information to be provided in the test report shall at least include the information necessary for declaration and verification of noise emission values. The required information is given in the basic standards used, i.e.: a) machine 1) type, 2) classification and technical data, 3) dimensions, 4) manufacturer, 5) serial number and year of manufacture, b) mounting and operating conditions relevant to noise emission during the test (see Clause 4 and Clause 5 and Annex A), c) basic standard(s) applied for the determination of noise emission (see Clause 4 and Clause 5), giving, where applicable, reasons for not using grade 2 methods, SIST EN 14462:2015



EN 14462:2015 (E) 13 d) acoustic data 1) A-weighted emission sound pressure level at workstations (LpA), 2) if required, A-weighted sound power level (LWA) or average A-weighted emission sound pressure level (LpA), NOTE Individual A-weighted emission sound pressure levels measured on large machines can be supplied as additional information. e) Organisational test data 1) place; 2) date; 3) responsible person. Any deviation(s) from this noise test code or from the basic standard(s) used, are to be recorded together with the technical justification for the deviation(s). 11 Declaration and verification of noise emission values The noise declaration shall be made as dual-number noise emission value(s) according to EN ISO 4871. The following values shall be declared in the instructions for use, and in the technical sales literature if any. — A-weighted emission sound pressure level at workstations, where this exceeds 70 dB (A); where this level does not exceed 70 dB (A), this fact shall be indicated. — If there is no work station the highest value of the A-weighted emission sound pressure level on a measurement path (see 4.2) and the position of the corresponding measurement position. — A-weighted sound power level emitted by the machinery where the A-weighted emission sound pressure level at least one workstation or specified measurement position exceeds 80 dB (A). — In the case of very large machines, instead of the sound power level, the A-weighted average emission sound pressure level.
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