BS EN IS0 7345:2018 Bsl Standards Publication Thermal performance of buildings and building components - Physical quantities and definitions (IS0 7345:2018) bsi. BSENIS07345:2018 BRITISH STANDARD National foreword This British Standard is theUK implementation of EN IS0 7345:2018.It is identical toIS07345:2018.It supersedesBSENIS07345:1996, which is withdrawn. TheUKparticipationinitspreparationwas entrustedtoTechnical CommitteeB/540/8,MirrorcommitteeforIS0/TC163-Thermal Performanceand Energy use in the built Environment. A list of organizations represented on this committee can be obtained on requestto its secretary. This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. @ The British Standards Institution 2018 Published byBSI Standards Limited 2018 ISBN9780580852046 ICS27.220;01.060 Compliance with a British Standard cannotconfer immunityfrom legal obligations. This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on30April2018. Amendments/corrigenda issued sincepublication Date Text affected EUROPEANSTANDARD EN ISO 7345 NORME EUROPEENNE EUROPAISCHE NORM April2018 ICS01.060;27.220 Supersedes ENIS0 7345:1995 English Version Thermal performance of buildings and building components - Physical quantities and definitions (ISO 7345:2018) Performance thermique des batiments et Warmeverhalten von Gebauden und des materiaux pour le batiment-Grandeurs Baustoffen - Physikalische Grofsen und physiques et définitions (IS0 7345:2018) Definitionen (IS0 7345:2018) This European Standard was approved by CEN on 23March 2018. 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, Former Yugoslav Republic of Macedonia,France, Germany, Greece, Hungary, Iceland, Ireland, Italy Latvia, Lithuania, Luxembourg,Malta,Netherlands, Norway,Poland,Portugal, 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: Avenue Marnix 17, B-1000 Brussels 2018CEN All rights of exploitation in any form and by any means reserved Ref. No. EN IS0 7345:2018: E worldwidefor CEN national Members