ISO INTERNATIONAL STANDARD 20553 First edition 2006-04-15 Radiation protection Monitoring of workers occupationally exposed to a risk of internal contamination with radioactive material Radioprotection-Surveillanceprofessionnelledes travailleurs exposésaun risquedecontamination internepardesmateriaux radioactifs Reference number ISO 20553:2006(E) @ISO 2006 ISO20553:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please infom the Central Secretariat at the address given below. ISO2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56·CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2006 - All rights reserved ISO20553:2006(E) Contents Page Foreword. Introduction 1 Scope 2 Normative references 3 Terms and definitions.... 3.1 Absorption types.. 4 Symbolsandabbreviatedterms 5 Purpose and need for monitoring programmes ... 6 Referencelevels. 7 Routinemonitoringprogrammes. 7.1 Generalaspects. 9 7.2 Workplace monitoring.. 10 7.3 Individual monitoring ... 10 7.4 Methods and time intervals .. 8 Special monitoringprogrammes 14 8.1 General aspects 14 8.2 Workplace monitoring .... 14 8.3 Individual monitoring . 15 9 Task-related monitoring programmes. 17 9.1 General aspects. 17 9.2 Workplace monitoring... 17 9.3 Individual monitoring ... 17 10 Special cases of individual monitoring .... 18 10.1 Actinides... 18 10.2 Contamination in wounds. 18 10.3 Contamination on the skin.... 18 11 Recording, documentation and reporting..... 18 11.1 Recording and documentation. 18 11.2 Reporting..... 20 12 Quality management... .20 Bibliography 22 @ ISO 2006 - All rights reserved ii ISO20553:2006(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent ISO20553 was prepared by Technical Committee ISO/TC 85, Nuclear energy, Subcommittee SC 2, Radiation protection. iv @ISO 2006-Allrights reserved ISO20553:2006(E) Introduction In the course of employment,individuals smight workwith radioactive materialsthat,under certain circumstances, could be taken into the body. Protecting workers against risks of incorporated radionuclides requires the monitoring of potential intakes and/or the quantification of actual intakes and exposures. The frequencies etc.for measurements and dose assessment. The criteria permitting the evaluation of the necessity of such a monitoring programme or for the selection of methods and frequencies of monitoring potential radionuclide intakes, and the characteristics of the materials handled. This International Standard offers guidance for the decision whether a monitoring programme is required and how it