EN ISO 11203:1995
(Main)Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level (ISO 11203:1995)
Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level (ISO 11203:1995)
This International Standard specifies two methods for determining the emission sound pressure levels of machinery and equipment, at a work station and at other specified positions nearby, by calculating from the sound power level. The principal purpose of this determination is to permit comparison of the performance of different units of a given family of machinery or equipment, under defined environmental conditions and standardized mounting and operating conditions. The data obtained may also be used for the declaration and verification of emissions sound pressure levels as specified in ISO 4871. Emission sound pressure levels are determined with the same frequency weighting, or in the same frequency bands, as those for which sound power levels have been determined. Note 1: The contents of this and related International Standards are summarized in table 1 of ISO 11200:1995. Note 2: At any position in relation to a particular machine, and for given mounting and operating conditions, the emission sound pressure levels determined by the method of this International Standard will in general be lower than the directly measured sound pressure levels for the same machine in the typical workroom where it is used. This is due to reverberation and the contributions of other machines. A method of calculating the sound pressure levels in the vicinity of a machine operating alone in a workroom is given in ISO 11690-3. Commonly observed differences are 1 dB to 5 dB, but in extreme cases the difference may be even greater.
Akustik - Geräuschabstrahlung von Maschinen und Geräten - Bestimmung von Emissions-Schalldruckpegeln am Arbeitsplatz und an anderen festgelegten Orten (ISO 11203:1995)
Diese Internationale Norm legt zwei Verfahren zur Bestimmung der Emissions-Schalldruckpegel an Arbeitsplätzen und anderen, sich in der Nähe befindenden, festgelegten Orten von Maschinen und Geräten durch Berechnung aus dem Schalleistungspegel fest. Hauptzweck dieser Bestimmung ist es, einen Vergleich verschiedener Geräte einer bestimmten Maschinenart unter festgelegten Umgebungsbedingungen und genormten Aufstellungs- und Betriebsbedingungen zu ermöglichen.
Acoustique - Bruit émis par les machines et équipements - Détermination des niveaux de pression acoustique d'émission au poste de travail et en d'autres positions spécifiées à partir du niveau de puissance acoustique (ISO 11203:1995)
NEW!IEC 60034-1:2017 est disponible sous forme de IEC 60034-1:2017 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 60034-1:2017 est applicable à toutes les machines électriques tournantes, excepté celles qui sont couvertes par d’autres normes IEC, par exemple l’IEC 60349. Les machines comprises dans le domaine d’application du présent document peuvent également être soumises à des exigences nouvelles, modifiées ou complémentaires figurant dans d’autres normes, par exemple, les séries IEC 60079 et IEC 60092. Cette nouvelle édition contient de multiples calrifications, corrections et améliorations par rapport à l'édition précédente.
Akustika - Emisija hrupa naprav in opreme - Ugotavljanje emisijske ravni zvočnega tlaka na mestu delovanja in na drugih opredeljenih mestih z ravni zvočne moči (ISO 11203:1995)
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Akustik - Geräuschabstrahlung von Maschinen und Geräten - Bestimmung von Emissions-Schalldruckpegeln am Arbeitsplatz und an anderen festgelegten Orten (ISO 11203:1995)Acoustique - Bruit émis par les machines et équipements - Détermination des niveaux de pression acoustique d'émission au poste de travail et en d'autres positions spécifiées a partir du niveau de puissance acoustique (ISO 11203:1995)Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level (ISO 11203:1995)17.140.20Emisija hrupa naprav in opremeNoise emitted by machines and equipmentICS:Ta slovenski standard je istoveten z:EN ISO 11203:1995SIST EN ISO 11203:1997en01-april-1997SIST EN ISO 11203:1997SLOVENSKI
STANDARD
SIST EN ISO 11203:1997
SIST EN ISO 11203:1997
SIST EN ISO 11203:1997
SIST EN ISO 11203:1997
SIST EN ISO 11203:1997
INTERNATIONAL STANDARD IS0 11203 First edition 1995-12-15 Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level Acoustique - Bruit kmis par /es machines et Bquipements - Dktermination des niveaux de pression acoustique d%mission au poste de travail et en d’autres positions sp&ifGes 8 partir du niveau de puissance acoustique Reference number IS0 11203:1995(E) SIST EN ISO 11203:1997
IS0 11203:1995(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (I EC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 11203 was prepared by Technical Committee lSO/TC 43, Acoustics, Subcommittee SC 1, Noise. Annex A of this International Standard is for information only. 0 IS0 1995 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Case Postale Organization 56.CH-121 for Standardization 1 Geneve 20 l Swi tzerland Printed in Switzerland SIST EN ISO 11203:1997
CJ IS0 IS0 11203:1995(E) Introduction 0.1 This International Standard specifies methods for determining the emission sound pressure levels at a work station and at other specified positions in the vicinity of machinery and equipment from the sound power level. In general, these sound pressure levels are different from those that would be observed when the machinery or equipment is oper- ating in its normal surroundings where the environment may influence the emission sound pressure level. 0.2 This International Standard is one of a series (IS0 11200 to IS0 11204) which specifies various methods for determining the noise emissions of a piece of machinery or equipment, or a sub-assembly of such equipment (machine under test). IS0 11200 gives guidance on the choice of the method to be used to determine the emission sound pressure levels of machinery and equipment. It also gives details of International Standards giving methods for the de- termination of sound power levels. SIST EN ISO 11203:1997
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INTERNATIONAL STANDARD 0 ISO IS0 11203:1995(E) Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions from the sound power level 1 Scope 1 .I General This International Standard specifies two methods for determining the emission sound pressure levels of machinery and equipment, at a work station and at other specified positions nearby, by calculation from the sound power level. The principal purpose of this determination is to permit comparison of the per- formance of different units of a given family of ma- chinery or equipment, under defined environmental conditions and standardized mounting and operating conditions. The data obtained may also be used for the declaration and verification of emission sound pressure levels as specified in IS0 4871. Emission sound pressure levels are determined with the same frequency weighting and time weighting, or in the same frequency bands, as those for which sound power levels have been determined. NOTES I The contents of this and related International Standards are summarized in table 1 of IS0 11200:1995. 2 At any given position in relation to a particular machine, and for given mounting and operating conditions, the emis- sion sound pressure levels determined by the method of this International Standard will in general be lower than the directly measured sound pressure levels for the same ma- chine in the typical workroom where it is used. This is due to reverberation and the contributions of other machines. A method of calculating the sound pressure levels in the vicinity of a machine operating alone in a workroom is given in IS0 11690-3. Commonly observed differences are I dB to 5 dB, but in extreme cases the difference may be even greater. 1.2 Types of noise and noise sources This International Standard is, in principle, applicable to moving or stationary machines, for indoor or out- door use, particularly those machines which are mass-produced. The methods given in this Inter- national Standard are not applicable to highly direc- tional sound sources used outdoors. This International Standard is particularly applicable to machines whose largest dimension is less than or equal to 1 m. It is also applicable to larger machines in certain cases (see 6.2.3). This International Standard is applicable to all types of noise as defined in IS0 2204 and IS0 12001 for which methods for determining the sound power level are available. 1.3 Test environment The test environment to be used is that which is specified for the determination of the sound power level in accordance with the International Standards of the IS0 3740 or IS0 9614 series. 1.4 Specified positions This International Standard is applicable to work stations and other specified positions in the vicinity of the source under test where emission sound pressure levels are to be determined. It is not appli- cable to work stations and other defined positions which are situated inside a cab or a cabin, or behind a screen. SIST EN ISO 11203:1997
IS0 11203:1995(E) 0 IS0 A work station can be a single point, corresponding to the specified position of a standing or seated op- erator. It can also be a specified path. NOTE 3 More detailed specifications regarding seated, standing, stationary or moving operators, as well as infor- mation concerning bystanders, are to be found in IS0 ll201. 1.5 Specific field of application of each method Specific information on the field of application of each of the two methods described in this International Standard is given in 6.2.2 and 6.2.3. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publi- cation, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most re- cent editions of the standards indicated below. Members of IEC and IS0 maintain registers of cur- rently valid International Standards. IS0 2204:1979, Acoustics - Guide to International Standards on the measurement of airborne acoustical noise and evaluation of its effects on human beings. IS0 3741:1988, Acoustics - Determination of sound power levels of noise sources - Precision methods for broad-band sources in reverberation rooms. IS0 3742:1988, Acoustics - Determination of sound power levels of noise sources - Precision methods for discrete-frequency and narrow-band sources in reverberation rooms. IS0 3743-l :I 994, Acoustics - Determination of sound power levels of noise sources - Engineering methods for small, movable sources in reverberant fields - Part 1: Comparison method for hard-walled test rooms. IS0 3743-2:1994, Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering methods for small, movable sources in reverberant fields - Part 2: Methods for special reverberation test rooms. IS0 3744:1994, Acoustics - Determination of sound power levels of noise sources using sound pressure - Engineering method in an essentially free field over a reflecting plane. IS0 3745:1977, Acoustics - Determination of sound power levels of noise sources - Precision methods for anechoic and semi-anechoic rooms. IS0 3746:1995, Acoustics - Determination of sound power levels of noise sources using sound pressure - Survey method using an enveloping measurement surface over a reflecting plane. IS0 9614-1 :1993, Acoustics - Determination of sound power levels of noise sources using sound in- tensity - Part 1: Measurement at discrete points. IS0 9614-2: -‘1, Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 2: Measurement by scanning. IS0 11200:1995, Acoustics - Noise emitted by ma- chinery and equipment - Guidelines for the use of basic standards for the determination of emission sound pressure levels at a work station and at other specified positions. IS0 12001: -‘1, Acoustics - Noise emitted by ma- chinery and equipment - Rules for the drafting and presentation of a noise test code. IEC 651: 1979, Sound level meters. I EC 804: 1985, Integrating averaging sound level meters. I EC 942: 1988, Sound calibrators. IEC 1260: -*I, Electroacoustics - Octave-band and fractional-octave-band filters. 3 Definitions For the purposes of this International Standard, the following definitions apply. More detailed definitions may be found in noise test codes for specific types of machinery and equipment. 3.1 emission: Airborne sound radiated by a well- defined noise source (e.g. the machine under test). NOTE 4 Noise emission descriptors may be incorporated in a product label and/or product specificatio n. The basic I) To be published. 2) To be published. (Revision of IEC 225:1966) 2 SIST EN ISO 11203:1997
0 IS0 IS0 11203:1995(E) noise emission descriptors are the sound power level of the source itself and the emission sound pressure levels at a work station and/or at other specified positions (if any) in the vicinity of the source. 3.2 emission sound pressure, p: The sound press- ure, 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. It is expressed in pascals. 3.3 emission sound pressure level, Lp: Ten times the logarithm to the base IO of the ratio of the square of the emission sound pressure, p* t), 1 to the square of the reference sound pressure, po, measured with a particular time weighting and a particular frequency weighting, selected from those defined in IEC 651. It is expressed in decibels. The reference sound press- ure is 20 FPa. NOTE 5 Examples include: - maximum A-weighted emission sound pressure level with time-weighting F: LpAFmax; - C-weighted peak emission sound pressure level: L pC,peak- The emission sound pressure level shall be deter- mined at a specified position in accordance with either a test code for a specific family of machines or, if no test code exists, a method that complies with the IS0 11200 series. 3.3.1 time-averaged emission sound pressure level, LpeqT: Emission sound pressure level of a con- tinuous steady sound that, within a measurement time interval, T, has the same mean square sound pressure as a sound under consideration which varies with time. It is expressed in decibels and is given by the follow- ing equation: 2 - LpeqT = 10 lg+lT P (4 ldt dB . . . O PO (1) A-weighted time-averaged emission sound pressure levels are denoted by LpAeqT, which is usually abbrevi- ated to Li,A. LpAeqT shall be measured with an instru- ment which complies with the requirements of IEC 804. NOTES 6 In general, the subscripts eq and T are omitted since time-averaged emission sound pressure levels are necess- arily determined over a certain measurement time interval. 7 Equation (1) is identical to that for the familiar IS0
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