BSENIS0717-2:2020 BSl Standards Publication Acoustics Rating of sound insulation in buildings and of building elements Part 2: Impact sound insulation bsi. BSENIS0717-2:2020 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN IS0 717-2:2020.It is identical to IS0 717-2:2020. It supersedes BS EN IS0 717-2:2013, which is withdrawn. TheUKparticipationinitspreparationwas entrustedtoTechnical Committee EH/1/6, Building acoustics. A list oforganizations represented on this committee can be obtained on request to its committee manager. This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. @TheBritishStandardsInstitution2020 Published by BSI Standards Limited 2020 ISBN9780539012606 ICS91.120.20 Compliance with a British Standard cannotconfer immunityfrom legal obligations. This British Standard was published under the authority of the StandardsPolicyandStrategyCommitteeon31December2020. Amendments/corrigendaissuedsincepublication Date Text affected EUROPEANSTANDARD EN ISO 717-2 NORME EUROPEENNE EUROPAISCHE NORM December 2020 ICS91.120.20 Supersedes ENIS0 717-2:2013 English Version Acoustics -Rating of sound insulation in buildings and of building elements -Part 2:Impact sound insulation (IS0 717-2:2020) Acoustique-Evaluation de Il'isolement acoustique des Akustik-Bewertung der Schalldammung immeubles et des élements de construction-Partie in Gebauden und von Bauteilen-Teil 2: 2: Protection contre le bruit de choc (IS0 717-2:2020) Trittschalldammung (IS0 717-2:2020) This European Standard was approved by CEN on 12 December 2020. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate theconditions for giving this European Standard the status ofa national standard without any alteration. Up-to-date lists and bibliographical ortoany CENmember. This European Standard exists in three official versions (English, French, German). A version in any other language made bytranslation under theresponsibility ofa 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic ofNorth Macedonia,Romania, Serbia, Slovakia, Slovenia, Spain, Sweden Switzerland, Turkey and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FURNORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2020CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 717-2:2020: E worldwide for CEN national Members