EN ISO 17201-2:2006
(Main)Acoustics - Noise from shooting ranges - Part 2: Estimation of muzzle blast and projectile sound by calculation (ISO 17201-2:2006)
Acoustics - Noise from shooting ranges - Part 2: Estimation of muzzle blast and projectile sound by calculation (ISO 17201-2:2006)
ISO 17201-2:2006 specifies methods for estimating the acoustic source data of muzzle blast and explosions and the source data of projectile sound on the basis of non-acoustic data for firearms with calibres less than 20 mm and explosions less than 50 g TNT equivalent.
It addresses those cases where no source measurements exist, or where the data necessary to calculate projectile sound according to ISO 17201-4 are unknown. An example of this situation would be measuring projectile sound from shot gun pellets. It can also be used as an interpolation method between measurements of muzzle blast.
It is not applicable to the prediction of sound levels for the assessment of hearing damage and cannot be used to predict sound pressure levels or sound exposure levels below a specific distance where linear acoustics does not apply.
Akustik - Geräusche von Schießplätzen - Teil 2: Bestimmung des Mündungsknalls und des Geschossgeräusches durch Berechnung (ISO 17201-2:2006)
Dieser Teil von ISO 17201 legt Verfahren fest zur Ermittlung akustischer Quelldaten des Mündungsknalls und von Explosionen sowie des Geschossgeräusches auf der Grundlage von nichtakustischen Daten für Handfeuerwaffen mit Kalibern kleiner als 20 mm und für Explosionen mit weniger als 50 g TNT-äquivalent.
Dieser Teil von ISO 17201 behandelt die Fälle, in denen keine Quellmessungen vorliegen oder in denen die erforderlichen Daten zur Berechnung des Geschossgeräusches nach ISO 17201-4 nicht bekannt sind. Dies ist beispielsweise bei Schroten der Fall, die aus Flinten abgefeuert werden. Dieser Teil von ISO 17201 kann außerdem als Interpolationsverfahren zwischen Messungen des Mündungsknalls angewendet werden.
Quelldaten sind angegeben im Hinblick auf die spektrale winkelabhängige Schallquellenenergie im Frequenzbereich von 12,5 Hz bis 10 kHz und können als Eingangsdaten zur Berechnung der Schallausbreitung verwendet werden.
Dieser Teil von ISO 17201 ist weder anwendbar für die Prognose von Schallpegeln zur Beurteilung von Gehörschädigungen noch für die Prognose von Schalldruckpegeln oder Schallexpositionspegeln unterhalb eines bestimmten Abstandes, bei dem lineare Akustik nicht anwendbar ist.
Acoustique - Bruit des stands de tir - Partie 2: Estimation de la détonation à la bouche et du bruit du projectile par calcul (ISO 17201-2:2006)
L'ISO 17201-2:2006 spécifie des méthodes pour estimer les données acoustiques de source du bruit à la bouche et des explosions et les données de source du bruit du projectile, sur la base de données non acoustiques, pour les armes à feu de calibre inférieur à 20 mm et les charges explosives inférieures à 50 g d'équivalent TNT.
L'ISO 17201-2:2006 traite des cas où il n'existe aucun mesurage de la source ou de ceux où les données nécessaires au calcul du bruit du projectile selon l'ISO 17201-4 ne sont pas connues, ce qui est notamment le cas du bruit de projectile de la grenaille tirée par des fusils de chasse. L'ISO 17201-2:2006 peut également servir de méthode d'interpolation entre des mesures du bruit à la bouche.
L'ISO 17201-2:2006 ne s'applique pas à l'estimation des niveaux sonores pour l'évaluation des dommages auditifs. Elle ne peut pas non plus servir à prédire les niveaux de pression acoustique ou d'exposition sonore en deçà d'une distance spécifique où l'acoustique linéaire ne s'applique pas.
Akustika - Hrup strelskih poligonov - 2. del: Določanje potisnega poka in zvoka izstrelkov z izračunom (ISO 17201-2:2006)
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Akustik - Geräusche von Schießplätzen - Teil 2: Bestimmung des Mündungsknalls und des Geschossgeräusches durch Berechnung (ISO 17201-2:2006)Acoustique - Bruit des stands de tir - Partie 2: Estimation de la détonation a la bouche et du bruit du projectile par calcul (ISO 17201-2:2006)Acoustics - Noise from shooting ranges - Part 2: Estimation of muzzle blast and projectile sound by calculation (ISO 17201-2:2006)97.220.10Športni objektiSports facilities95.020Vojaška tehnika. Vojaške zadeve. OrožjeMilitary engineering. Military affairs. Weapons17.140.20Emisija hrupa naprav in opremeNoise emitted by machines and equipmentICS:Ta slovenski standard je istoveten z:EN ISO 17201-2:2006SIST EN ISO 17201-2:2006en01-december-2006SIST EN ISO 17201-2:2006SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 17201-2July 2006ICS 97.220.10; 95.020; 17.140.20 English VersionAcoustics - Noise from shooting ranges - Part 2: Estimation ofmuzzle blast and projectile sound by calculation (ISO 17201-2:2006)Acoustique - Bruit des stands de tir - Partie 2: Estimationde la détonation à la bouche et du bruit du projectile parcalcul (ISO 17201-2:2006)Akustik - Geräusche von Schießplätzen - Teil 2:Bestimmung des Mündungsknalls und desGeschossgeräusches durch Berechnung (ISO 17201-2:2006)This European Standard was approved by CEN on 5 June 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 17201-2:2006: ESIST EN ISO 17201-2:2006
Foreword
This document (EN ISO 17201-2:2006) has been prepared by Technical Committee ISO/TC 43 "Acoustics" in collaboration with Technical Committee CEN/TC 211 "Acoustics", the secretariat of which is held by DS.
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 January 2007, and conflicting national standards shall be withdrawn at the latest by January 2007.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 17201-2:2006 has been approved by CEN as EN ISO 17201-2:2006 without any modifications.
Reference numberISO 17201-2:2006(E)© ISO 2006
INTERNATIONAL STANDARD ISO17201-2First edition2006-07-01Acoustics — Noise from shooting ranges — Part 2: Estimation of muzzle blast and projectile sound by calculation Acoustique — Bruit des stands de tir — Partie 2: Estimation de la détonation à la bouche et du bruit du projectile par calcul
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ISO 17201-2:2006(E) © ISO 2006 – All rights reserved iiiContents Page Foreword.iv Introduction.v 1 Scope.1 2 Normative references.1 3 Terms and definitions.1 3.1 General.1 3.2 Directivity.5 3.3 Energy.5 3.4 Fraction.7 3.5 Projectile.7 4 Estimation model for source data of the muzzle blast.8 4.1 General.8 4.2 Estimation of chemical energy.9 4.3 Estimation of acoustic energy.9 4.4 Estimation of the Weber energy.9 4.5 Estimation of directivity.9 4.6 Estimation of the spectrum.9 5 Estimation model for projectile sound.10 5.1 General.10 5.2 Estimation of projectile sound source energy.11 6 Sound exposure.12 7 Uncertainty of estimation.15 Annex A (informative)
Simple blast model for estimation of sound energy and its spectrum.16 Annex B (informative)
Quality of input data.18 Annex C (informative)
Examples for estimation of muzzle blast.21 Annex D (informative)
Estimation of sound exposure of projectile according to Figure 3 flowchart — Example.29 Bibliography.31
ISO 17201-2:2006(E) iv © ISO 2006 – All rights reserved 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. 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. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 17201-2 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise. ISO 17201 consists of the following parts, under the general title Acoustics — Noise from shooting ranges: ⎯ Part 1: Determination of muzzle blast by measurement ⎯ Part 2: Estimation of muzzle blast and projectile sound by calculation ⎯ Part 4: Prediction of projectile sound The following parts are under preparation: ⎯ Part 3: Guidelines for sound propagation calculations ⎯ Part 5: Noise management The initiative to prepare a standard on impulse noise from shooting ranges was taken by AFEMS, the Association of European Manufacturers of Sporting Ammunition, in April 1996, by the submission of a formal proposal to CEN. After consultation in CEN in 1998, CEN/TC 211, Acoustics, asked ISO/TC 43/SC 1, Noise, to prepare the ISO 17201 series. SIST EN ISO 17201-2:2006
ISO 17201-2:2006(E) © ISO 2006 – All rights reserved vIntroduction Two basic sources dominate the shooting sound from firearms: the muzzle blast and the projectile sound. These two sources are basically different. The explosion blast from devices can be treated as muzzle blast. The muzzle blast is caused by the expanding gases of the propellant at the muzzle. The muzzle blast can be modelled based on essentially less spherical volume of these gases at that moment when the expansion speed becomes subsonic. The projectile sound is caused by the supersonic flight of the projectile along the trajectory from the muzzle to the target or to a point on the trajectory where the projectile speed becomes subsonic. The projectile sound stems from a section of the trajectory that coherently radiates a shock wave into a certain direction. In general, the procedures for estimating the source energy depends on the estimation of energies that are involved in related processes. The procedures give estimates for the fraction of these energies that transforms into acoustic energy. The result of the estimation is a set of acoustical source data with respect to energy, direction and frequency content. SIST EN ISO 17201-2:2006
INTERNATIONAL STANDARD ISO 17201-2:2006(E) © ISO 2006 – All rights reserved 1Acoustics — Noise from shooting ranges — Part 2: Estimation of muzzle blast and projectile sound by calculation 1 Scope This part of ISO 17201 specifies methods for estimating the acoustic source data of muzzle blast and explosions and the source data of projectile sound on the basis of non-acoustic data for firearms with calibres less than 20 mm and explosions less than 50 g TNT equivalent. This part of ISO 17201 addresses those cases where no source measurements exist or where the data necessary to calculate projectile sound according to ISO 17201-4 are unknown. An example of this situation would be measuring projectile sound from shot guns pellets. This part of ISO 17201 can also be used as an interpolation method between measurements of muzzle blast. Source data are given in terms of spectral angular source energy covering the frequency range from 12,5 Hz to 10 kHz and can be used as data input for sound propagation calculation. This part of ISO 17201 is not applicable to the prediction of sound levels for the assessment of hearing damage and cannot be used to predict sound pressure levels or sound exposure levels below a specific distance where linear acoustics does not apply. 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. ISO 17201-1:2005, Acoustics — Noise from shooting ranges — Part 1: Determination of muzzle blast by measurement ISO
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