EN IS0 14146 EUROPEANSTANDARD NORMEEUROPEENNE EUROPAISCHE NORM July 2024 ICS 13.280 SupersedesENIS014146:2021 English Version Radiological protection -Criteria and performancelimits for the periodic evaluation of dosimetry services for external radiation (Is0 14146:2024) Radioprotection - Criteres et limites de performance Strahlenschutz - Kriterien und Mindestanforderungen pour I'évaluation periodique des services de beiderwiederkehrendenUberprifungvon dosimetrie pour le rayonnement externe (Iso Dosismessstellen (IS014146:2024) 14146:2024) This European Standard was approved by CEN on 6 July 2024. CEN members are bound to complywith the CEN/CENELEC Internal Regulations whichstipulate the conditions forgiving 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 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 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 of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHESKOMITEEFURNORMUNG CEN-CENELEC Management Centre: Rue dela Science 23,B-1040 Brussels @2024CEN All rights of exploitation in any form and by any means reserved Ref.No.EN ISO 14146:2024 E worldwidefor CEN national Members. ENIS0 14146:2024 (E) Contents Page European foreword... 2 ENIS014146:2024 (E) European foreword This document (EN IS014146:2024) has been prepared by Technical Committee IS0/TC 85"Nuclear energy, nuclear technologies, and radiological protection" in collaboration with Technical Committee CEN/TC 43o"Nuclear energy, nuclear technologies, and radiological protection" the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an be withdrawn at the latestby January 2025. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights This document supersedes ENIS014146:2021. Any feedback and questions on this document should be directed to the users' national standards body/national committee.Acompletelisting ofthesebodies can befoundon theCENwebsite According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and the United Kingdom. Endorsement notice The text ofIS014146:2024 has been approved by CENas ENIS014146:2024 without anymodification. 3