EN IS0 14146 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM July 2024 ICS 13.280 Supersedes EN IS0 14146:2021 English Version Radiological protection - Criteria and performance limits for the periodic evaluation of dosimetry services for external radiation (IS0 14146:2024) Radioprotection-Criteresetlimitesdeperformance Strahlenschutz - Kriterien und Mindestanforderungen pourI'évaluationpériodiquedes services de beider wiederkehrenden Uberprufungvon dosimétriepourlerayonnementexterne(iso Dosismessstellen (Is014146:2024) 14146:2024) This European Standard was approved by CEN on 6 July 2024. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of anational standard without any alteration.Up-to-date lists and bibliographical reference 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. CENmembersarethe national standards bodiesofAustria, Belgium, Bulgaria,Croatia, Cyprus, CzechRepublic, 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 COMITEEUROPEENDENORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2024CEN All rights of exploitation in any form and by any means reserved Ref. No. EN IS0 14146:2024 E worldwide for CEN national Members. EN IS0 14146:2024 (E) Contents Page European foreword.. 2 EN IS0 14146:2024 (E) European foreword This document (EN IS0 14146:2024) has been prepared by Technical Committee IS0/TC 85 "Nuclear energy, nuclear technologies, and radiological protection" in collaboration with Technical Committee CEN/TC 430 “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of an identical text or by endorsement, at the latest by January 2025, and conflicting national standards shall be withdrawn at the latest by January 2025.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 EN IS0 14146:2021. Any feedback and questions on this document should be directed to the users' national standards body/national committee. A complete listing of these bodies can be found on the CEN website. 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, North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and the United Kingdom. Endorsement notice The text of IS0 14146:2024 has been approved by CEN as EN IS0 14146:2024 without any modification. 3