SIST EN 27574-1:1997

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Akustik - Statistische Verfahren zur Festlegung und Nachprüfung angegebener (oder vorgegebener) Geräuschemissionswerte von Maschinen und Geräten - Teil 1: Allgemeines und Begriffe (ISO 7574-1:1985)Acoustique - Méthodes statistiques pour la détermination et le contrôle des valeurs déclarées d'émission acoustique des machines et équipements - Partie 1: Généralités et définitions (ISO 7574-1:1985)Acoustics - Statistical methods for determining and verifying stated noise emission values of machinery and equipment - Part 1: General considerations and definitions (ISO 7574-1:1985)17.140.20Emisija hrupa naprav in opremeNoise emitted by machines and equipmentICS:Ta slovenski standard je istoveten z:EN 27574-1:1988SIST EN 27574-1:1997en01-april-1997SIST EN 27574-1:1997SLOVENSKI
STANDARD
Internat INTERNATIONAL ORGANIZATION FOR STANDARDIZATION.ME)KAYHAPOAHAR OP!-AHkl3AlJ4fl l-l0 CTAH,QAPTM3AL(MM.ORGANISATION INTERNATIONALE DE NORMALlSATlON Acoustics - Statistical methods for determining and verifying stated noise emission values of machinery and equipment - Part 1: General considerations and definitions Acoustique - Mkthodes statistiques pour Ia dhtermination et Ie contr6le des valeurs d&lar&es d’hmission acoustique des machines et hquipements - Partie 7 : G&&alitt% et d&Yinitions First edition - ‘l985-12-15 UDC 534.835.46 : 512.24 Ref. No. ISO 7574/1-1985 (E) Descriptors : acoustics, machinery, noise (Sound), statistical quality controi, statistical analysis, definitions. Price based on 4 pages SIST EN 27574-1:1997

Foreword ISO (the International Organization for Standardization) is a worldwide federation of national Standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Esch 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, govern- mental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 7574/1 was prepared by Technical Committee ISO/TC 43, Acoustics. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. 0 International Organization for Standardization, 1985 Printed in Switzerland SIST EN 27574-1:1997

INTERNATIONAL STANDARD ISO 7574/1-1985 (EI Acoustics - Statistical methods for determining and . verifying stated noise emission values of machinery and equipment - Part 1: General considerations and definitions 0 Introduction to ISO 7574 In Order to state the noise emission value for a machine or a batch of machines in an unambiguous manner, this four-patt series of International Standards provides guidelines for deter- mining the noise emission value to be stated (e.g. as a labelled value) and specifies verification procedures. These methods are based on the premise of clearly defined acoustical measure- ment methods and describe the handling of the variability of the measurement results and, if relevant, of the noise emissions of the machines in a batch. The methods presented in this series of International Standards are compatible with the requirements specified in ISO 4871, i.e., - the stated (e.g. labelled) value indicates the limit below which the noise emission value of the individual machine and/or a specified large proportion of the noise emission values of the batch lies; - the basic noise emission quantity used is the A-weighted Sound power level. Although this series of International Standards is drafted mainly in terms of A-weighted Sound power level as a noise emission quantity, it is equally applicable to other quantities. In this series of International Standard the term “label” is con- sidered to include all means for providing information on the noise emission values to potential users of the equipment; this includes labels, brochures, advertisements, commercial literature, etc. Requirements for this may be stipulated, for ex- ample in a contract or in regulations. The methods described may be applied not only to values stated for labelling purposes, but also to values stated for other purposes, for example : - to the upper noise limit set by an authority or specified in a technical Standard for a specific family of machines; - to contract values as agreed by the manufacturer and purchaser of the machine(s). This series of International Standards does not specify whether, or for which specific family of machines, the purposes mentioned above are relevant or whether the methods for determining and verifying stated noise emission values should be applied. This is left to a labelling code specific to the machinery or equipment concerned or, if this does not exist, to an agreement between the users of the Standards (e.g. in a contract). Two cases are considered: - the stated value is given for one individual machine; - the stated value is given for an entire batch of machines. For economic reasons, the stated values for batches of series- produced machines may be verified by sampling procedures. This four-part series of International Standards does not deal with the consequences that ensue if the stated value is not verified for a Single machine or for a batch (lot) of machines. This series of International Standards which comprise ISO 7574 requires that the labelled value be determined using the same measurement test code as that specified for verification. lt therefore applies to families of machines or equipment for which special measurement test Codes for the determination of noise emission quantities are prepared. If no special test code for a particular family exists, the methods specified in ISO 3741, ISO 3742, ISO 3743, ISO 3744 and ISO 3745 may be appropriate. NOTE - This does not preclude the use of other International Stan- dards, e.g. ISO 3746, which may form the basis of special measure- ment test Codes. In each case the installation and operating conditions typical for normal use shall be clearly specified or agreed. The relevant measurement conditions may provide information, in the form of Standard deviations, on the dispersion of measurement results. A measure for the dispersion of the emis- sion values due to the different emissions of the different machines is the Standard deviation of production (sec 3.18). The series of International Standards which make up ISO 7574 comprises the following four Parts: Part 1: General considerations and definitions 1 SIST EN 27574-1:1997

ISO 7574/1-1985 (El Part 2: Methods for stated values for individual machines 3.2 A-weighted Sound power level, L wA, in decibels: , The Sound power level of a noise Source, determined according to an appropriate measurement test code with frequency weighting A kee IEC 651) selected on the measuring in- struments. Part 3: Simple (transition) method for stated batches of machines values for Part 4: Methods for stated values for batches of machines 33 noise emission quantity; noise emission value: The basic noise emission quantity is the A-weighted Sound power Level, L WA. 1 Scope and field of application This patt of ISO 7574 defines terms relating to methods for determining and verifying the stated (e.g. labelled) values of the noise emitted by machinery and equipment. A Single value of the noise emission quantity is called a noise emission value. NOTE - Henceforth, the subscripts WA are left out both for reasons of simplicity and so as not to exclude the use of another noise emission quantity. This four-patt series of International Standards applies both to machines which are produced in very small quantities as well as to machines which are produced by mass production methods. 34 measured value: The noise emission value for an individual machine actually determined in accordance with an appropriate measurement test Code. 2 References NOTE - Measured values shall not be rounded. According to this part of ISO 7574, the term “measured value” is used as a result of the measurement test code being applied. ISO 3534, Statistics - Vocabulary and Symbols. ISO 3741, Acoustics - Determination of soundpower levels of noise soufces - Precision methods for broad-band sources in reverbera tion rooms. 3.5 family of machines: Machines or equipment of similar design or type, or intended to perform the same fun ctions. ISO 3742, Acoustics - Determination o f Sound power levels o f noise soufces - Precision methods for discrete- frequency and narrow-band sources in reverbera tion rooms. NOTES 1 A family may include different designs which meet the same perfor- mance requirements, different production batches of a given design from one manufacturer, comparable products from different manufac- turers in various countries designed to fulfil the same purpose or machines of different sizes but of similar design. ISO 3743, Acoustics - Determination of soundpower levels of noise soufces - Engineering methods for special reverberation test fooms. 2 Examples of families of machines are a group of rotating electrical machines of a given range of power and Speed, a group of concrete mixers with a certain range of volumetric capacities. ISO 3744, Acoustics - Determination of
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