BSENIS020785-1:2020 BSl Standards Publication Dosimetry for exposures to cosmic radiation in civilian aircraft Part 1: Conceptual basis for measurements bsi. BSENIS020785-1:2020 BRITISH STANDARD Nationalforeword This British Standard is theUK implementation of ENIS020785-1:2020. Itis identicaltoIS020785-1:2020.It supersedesBSENIS020785-1:2017 which is withdrawn. TheUKparticipationinitspreparationwas entrustedtoTechnical Committee NCE/2,Radiation protection and measurement. A list oforganizationsrepresented 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. @The British Standards Institution 2020 Published by BSI Standards Limited 2020 ISBN9780539012309 ICS49.020;13.280 Compliancewith aBritish Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the StandardsPolicy andStrategy Committeeon31August2020. Amendments/corrigendaissuedsincepublication Date Text affected BSENIS020785-1:2020 ENIS0 20785-1 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM August2020 ICS13.280;49.020 Supersedes ENIS0 20785-1:2017 English Version Dosimetry for exposures to cosmic radiation in civilian aircraft - Part 1: Conceptual basis for measurements (IsO 20785-1:2020) Dosimetrie pour I'exposition au rayonnement Dosimetrie fur die Belastung durch kosmische cosmique a bord d'un avion civil - Partie 1: Fondement Strahlung in Zivilluftfahrzeugen - Teil 1: théorique des mesurages (Is0 20785-1:2020) Konzeptionelle Grundlage fur Messungen (IS0 20785- 1:2020) This European Standard was approved by CEN on 1 July 2020. CENmembers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givingthis 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by 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 of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITEEUROPEENDENORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG 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 IS0 20785-1:2020 E worldwideforCENnationalMembers