BSENIS011665-3:2020 BSl Standards Publication Measurement of radioactivity in the environment - Air: radon-222 Part 3: Spot measurement method of the potential alpha energy concentration of its short-lived decay products bsi. BSENISO11665-3:2020 BRITISH STANDARD National foreword This British Standard is theUK implementation of EN IS0 11665-3:2020.It is identicalto IS0 11665-3:2020.It supersedes BS EN ISQ 11665-3:2015, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee NCE/2, Radiation protection and measurement. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions ofa contract.Users areresponsiblefor its correctapplication TheBritishStandardsInstitution2020 Published byBSIStandards Limited2020 ISBN9780539012231 ICS13.040.01;17.240 Compliance with a British Standard cannot confer immunityfrom legal obligations. This British Standard was published under the authority of the Amendments/corrigendaissuedsincepublication Date Textaffected EN ISO 11665-3 EUROPEANSTANDARD NORMEEUROPEENNE EUROPAISCHE NORM February2020 ICS 17.240 SupersedesENIS011665-3:2015 EnglishVersion Measurement of radioactivityinthe environment-Air: radon-222 - Part 3: Spot measurement method of the potential alpha energy concentration of its short-lived decay products (IS0 11665-3:2020) Mesurage de la radioactivite dans Il'environnement Ermittlung der Radioaktivitat in der - Air: radon 222 - Partie 3: Méthode de mesure Umwelt - Luft: Radon-222 - Teil 3: ponctuelle de lénergie alphapotentielle volumique Punktmessverfahren der potenziellen Alpha- de sesdescendantsa viecourte (IS011665-3:2020) Energiekonzentration der kurzlebigen Radon- Folgeprodukte (IS0 11665-3:2020) This European Standard was approved by CEN on 19 January 2020. CEN members arebound 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 CEN-CENELEC Management Centre ortoanyCENmember 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 CEN-CENELEC ManagementCentrehasthesame statusasthe officialversions. 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 COMITE EUROPEEN DE NORMALISATION 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 ISO 11665-3:2020: E worldwide for CEN national Members