SVENSK STANDARD SS-EN

Transkript

1 Provläsningsexemplar / Preview SVENSK STANDARD SS-EN Fastställd Utgåva Sida (1+8+8) Copyright SIS. Reproduction in any form without permission is prohibited. Road traffic noise reducing devices Test method for determining the acoustic performance Part 1: Intrinsic characteristics of sound absorption Vägutrustning Bullerskydd Provningsmetod för bestämning av akustiska egenskaper Del 1: Produktegenskaper för ljudabsorption The European Standard has the status of a Swedish Standard. The European standard was approved and published as SS- in English. This document contains a bilingual version that supersedes the English version. Swedish Standards corresponding to documents referred to in this Standard are listed in Catalogue of Swedish Standards, issued by SIS. The Catalogue lists, with reference number and year of Swedish approval, International and European Standards approved as Swedish Standards as well as other Swedish Standards. Europastandarden gäller som svensk standard. Europastandarden fastställdes som SS-EN och har utgivits i engelsk version. Detta dokument, som ersätter det tidigare, återger i tvåspråkig version. Motsvarigheten och aktualiteten i svensk standard till de publikationer som omnämns i denna standard framgår av Katalog över svensk standard, som ges ut av SIS. I katalogen redovisas internationella och europeiska standarder som fastställts som svenska standarder och övriga gällande svenska standarder. ICS Standarder kan beställas hos SIS Förlag AB som även lämnar allmänna upplysningar om svensk och utländsk standard. Postadress: SIS Förlag AB, STOCKHOLM Telefon: Telefax: E-post: sis.sales@sis.se. Internet: Upplysningar om sakinnehållet i standarden lämnas av SIS. Telefon: Telefax: Tryckt i oktober 2001

2 Provläsningsexemplar / Preview EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN September 1997 ICS ; English version Road traffic noise reducing devices Test method for determining the acoustic performance Part 1: Intrinsic characteristics of sound absorption Dispositifs de réduction du bruit du trafic routier Méthode d'essai pour la détermination de la performance acoustique Partie 1: Caractéristiques intrinsèques relataives à l'absorption acoustique Lärmschutzeinrichtungen an Straßen Prüfverfahren zur Bestimmung der akustischen Eigenschaften Teil 1: Produktspezifische Merkmale der Schallabsorption This European Standard was approved by CEN on 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 BRUSSELS 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref. No. E

3 EUROPASTANDARD EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM Provläsningsexemplar / Preview EN September 1997 ICS ; Svensk version Vägutrustning Bullerskydd Provningsmetod för bestämning av akustiska egenskaper Del 1: Produktegenskaper för ljudabsorption Dispositifs de réduction du bruit du trafic routier Méthode d'essai pour la détermination de la performance acoustique Partie 1: Caractéristiques intrinsèques relataives à l'absorption acoustique Road traffic noise reducing devices Test method for determining the acoustic performance Part 1: Intrinsic characteristics of sound absorption Lärmschutzeinrichtungen an Strassen Prüfverfahren zur Bestimmung der akustischen Eigenschaften Teil 1: Produktspezifische Merkmale der Schallabsorption Denna standard är den officiella svenska versionen av EN1793-1:1997. För översättningen svarar SIS. Denna europastandard antogs av CEN CEN-medlemmarna är förpliktade att följa fordringarna i CEN/CENELECs interna bestämmelser som anger på vilka villkor denna europastandard i oförändrat skick skall ges status som nationell standard. Aktuella förteckningar och bibliografiska referenser rörande sådana nationella standarder kan på begäran erhållas från CENs centralsekretariat eller från någon av CENs medlemmar. Denna europastandard finns i tre officiella versioner (engelsk, fransk och tysk). En version på något annat språk, översatt under ansvar av en CEN-medlem till sitt eget språk och anmäld till CENs centralsekretariat, har samma status som de officiella versionerna. CENs medlemmar är de nationella standardiseringsorganen i Belgien, Danmark, Finland, Frankrike, Grekland, Irland, Island, Italien, Luxemburg, Nederländerna, Norge, Portugal, Schweiz, Spanien, Storbritannien, Sverige, Tjeckien, Tyskland och Österrike. CEN European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 BRUSSELS 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref. Nr. Sv

4 Page 2 Provläsningsexemplar / Preview Contents Page Foreword... 3 Introduction Scope Normative references Symbols Test arrangement Test procedure and evaluation Test report... 6 Annex A (normative) Categorization of single-number rating... 7 Annex B (informative) Guidance note on use of the number rating DL... 8 α

5 Provläsningsexemplar / Preview Sida 2 Innehåll Sida Förord... 3 Introduktion Omfattning Normativa hänvisningar Symboler Förberedelse av provning Provningsförfarande och utvärdering Provningsrapport... 6 Bilaga A (normativ) Kategorisering av entalsklassificering... 7 Bilaga B (informativ) Råd beträffande användning av entalsklassificering... 8

6 Page 3 Provläsningsexemplar / Preview Foreword This European Standard has been prepared by Technical Committee CEN/TC 226 Road equipment, the secretariat of which is held by AFNOR. This European Standard consists of the following parts under the general title : Road traffic noise reducing devices - Test method for determining the acoustic performance : Part 1 : Intrinsic characteristics of sound absorption ; Part 2 : Intrinsic characteristics of airborne sound insulation ; Part 3 : Normalized traffic noise spectrum. The following parts have not yet been prepared but research is being carried out within the European Research Programme Testing and Measurement : Part 4 : Extrinsic characteristics of in situ efficiency ; Part 5 : Intrinsic characteristics of in situ values of sound absorption and airborne sound insulation. Annex A of this part of EN 1793 is normative and annex B is for information only. 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 March 1998, and conflicting national standards shall be withdrawn at the latest by March According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.

7 Provläsningsexemplar / Preview Sida 3 Förord Denna europastandard har utarbetats av CEN/TC 226, Road equipment. Sekretariatet hålls av AFNOR. Denna europastandard består av följande delar med den gemensamma titeln: Vägutrustning - Bullerskydd Provningsmetod för bestämning av akustiska egenskaper Del 1: Produktegenskaper för ljudabsorption Del 2: Produktegenskaper för dämpning av luftburet buller Del 3: Enhetligt trafikbullerspektrum Följande delar har ännu inte utarbetats men forskning pågår inom det europeiska forskningsprogrammet Provning och mätning. Del 4: Användningsorienterade egenskaper Prestanda i fält Del 5: Produktegenskaper Mätning i fält av ljudabsorption och dämpning av luftburet buller Bilaga A till denna del av EN 1793 är normativ medan bilaga B endast är för information. Denna europastandard skall ges status som nationell standard, antingen genom att publicera en identisk text eller genom ikraftsättning senast i mars 1998, och motstridande nationella standarder skall dras in senast i mars Enligt CEN/CENELECs interna bestämmelser anmodas följande länder att anta denna europastandard: Belgien, Danmark, Finland, Frankrike, Grekland, Irland, Island, Italien, Luxemburg, Nederländerna, Norge, Portugal, Schweiz, Spanien, Storbritannien, Sverige, Tjeckien, Tyskland och Österrike.

8 Page 4 Provläsningsexemplar / Preview Introduction Where a sound reflecting surface is installed along a road it may be effective to use sound absorbing devices on its traffic side to reduce additional noise nuisance caused by reflected sound. This treatment may be needed in the presence of the following : noise barriers, rocks or retaining walls that can reflect sound waves toward unprotected areas, vertical cuttings or reflective surfaces that face each other, tunnels and their approaches, traffic passing close to a barrier where reflections between the vehicles and the barrier may reduce effectiveness. This standard specifies a test method for assessing the sound absorption performance of noise reducing devices designed for roads (a measure of intrinsic performance). It is not concerned with determining in-situ performance (extrinsic performance) which additionally depends on factors which are not related to the product itself, e.g. the dimensions of the barrier and quality of installation work and site factors such as ground impedance, site geometry etc. The test is designed to allow the intrinsic sound absorption performance of the device to be measured and the resulting rating should aid the selection of devices for particular roadside applications. 1 Scope This standard specifies the laboratory method for measuring the sound absorption of flat noise barriers or flat cladding for retaining walls or tunnels. It covers the assessment of the intrinsic sound absorption performance of roadside noise reducing devices which can reasonably be assembled inside the testing facility described in EN The test method in EN 20354, referred to in this standard, is strictly valid only for plane absorbers and in particular excludes devices which act as weakly damped resonators. Some devices will depart significantly from these requirements and in these cases care is needed in interpreting the results. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN EN Acoustics Measurement of sound absorption in a reverberation room (ISO 354 : 1985) Road traffic noise reducing devices Test method for determining the acoustic performance Part 3 : Normalized traffic noise spectrum