1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Radiation protection - Monitoring of workers occupationally exposed to a risk of internal contamination with radioactive materialBS EN ISO 20553:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 20553 October
2、 2017 ICS 13.280 English Version Radiation protection - Monitoring of workers occupationally exposed to a risk of internal contamination with radioactive material (ISO 20553:2006) Radioprotection - Surveillance professionnelle des travailleurs exposs un risque de contamination interne par des matria
3、ux radioactifs (ISO 20553:2006) This European Standard was approved by CEN on 13 September 2017. CEN members are bound 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-
4、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 translati
5、on 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, F
6、ormer Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZA
7、TION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 20553:2017 ENational forewordThis British
8、Standard is the UK implementation of EN ISO 20553:2017. It is identical to ISO 20553:2006. 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
9、secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 96926 3ICS 13.280Compliance with a British Standard canno
10、t confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 20553:2017EUROPEAN STANDARD NORME EUROPENNE E
11、UROPISCHE NORM EN ISO 20553 October 2017 ICS 13.280 English Version Radiation protection - Monitoring of workers occupationally exposed to a risk of internal contamination with radioactive material (ISO 20553:2006) Radioprotection - Surveillance professionnelle des travailleurs exposs un risque de c
12、ontamination interne par des matriaux radioactifs (ISO 20553:2006) This European Standard was approved by CEN on 13 September 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national stan
13、dard 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 a
14、ny 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 Rep
15、ublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
16、 EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 20553:2
17、017 EBS EN ISO 20553:2017EN ISO 20553:2017 (E) 3 European foreword The text of ISO 20553:2006 has been prepared by Technical Committee ISO/TC 85 “Nuclear energy, nuclear technologies, and radiological protection” of the International Organization for Standardization (ISO) and has been taken over as
18、EN ISO 20553:2017 by 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
19、 the latest by April 2018, and conflicting national standards shall be withdrawn at the latest by April 2018. 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
20、 rights. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, Fr
21、ance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 20553:2006 has been approved by CEN
22、 as EN ISO 20553:2017 without any modification. BS EN ISO 20553:2017ISO 20553:2006(E) ISO 2006 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 2 3 Terms and definitions. 2 3.1 Absorption types 2 4 Symbols and abbreviated terms . 6 5 Purpose and ne
23、ed for monitoring programmes 6 6 Reference levels 8 7 Routine monitoring programmes 9 7.1 General aspects 9 7.2 Workplace monitoring 10 7.3 Individual monitoring . 10 7.4 Methods and time intervals . 11 8 Special monitoring programmes. 14 8.1 General aspects 14 8.2 Workplace monitoring 14 8.3 Indivi
24、dual monitoring . 15 9 Task-related monitoring programmes17 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
25、and reporting 18 11.1 Recording and documentation 18 11.2 Reporting . 20 12 Quality management. 20 Bibliography . 22 BS EN ISO 20553:2017ISO 20553:2006(E) iv ISO 2006 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards
26、bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizat
27、ions, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in th
28、e ISO/IEC 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
29、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 rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 20553 was prepared by Technical Committee ISO/TC 85, Nuclear en
30、ergy, Subcommittee SC 2, Radiation protection. BS EN ISO 20553:2017ISO 20553:2006(E) ISO 2006 All rights reserved vIntroduction In the course of employment, individuals might work with radioactive materials that, under certain circumstances, could be taken into the body. Protecting workers against r
31、isks of incorporated radionuclides requires the monitoring of potential intakes and/or the quantification of actual intakes and exposures. The selection of measures and programmes for this purpose requires decisions concerning methods, techniques, frequencies etc. for measurements and dose assessmen
32、t. The criteria permitting the evaluation of the necessity of such a monitoring programme or for the selection of methods and frequencies of monitoring usually depend upon the legislation, the purpose of the radiation protection programme, the probabilities of potential radionuclide intakes, and the
33、 characteristics of the materials handled. This International Standard offers guidance for the decision whether a monitoring programme is required and how it should be designed. Its intention is to optimise the efforts for such a monitoring programme consistent with legal requirements and with the p
34、urpose of the radiation protection programme. Recommendations of international expert bodies and international experience with the practical application of these recommendations in radiation protection programmes have been considered in the development of this International Standard. Its application
35、 facilitates the exchanges of information between authorities, supervisory institutions and employers. The International Standard is not a substitute for legal requirements. In the International Standard, the word “shall” is used to denote a requirement and no deviation is allowed. The word “should”
36、 is used to denote a recommendation from which justified deviations are allowed. The word “may” is used to denote permission. BS EN ISO 20553:2017INTERNATIONAL STANDARD ISO 20553:2006(E) ISO 2006 All rights reserved 1Radiation protection Monitoring of workers occupationally exposed to a risk of inte
37、rnal contamination with radioactive material 1 Scope This International Standard specifies the minimum requirements for the design of professional programmes to monitor workers exposed to the risk of internal contamination by radioactive substances and establishes principles for the development of c
38、ompatible goals and requirements for monitoring programmes. This International Standard addresses the a) purposes of monitoring and of monitoring programmes; b) description of the different categories of monitoring programmes; c) quantitative criteria for conducting monitoring programmes; d) suitabl
39、e methods for monitoring and criteria for their selection; e) information that has to be collected for the design of a monitoring programme; f) general requirements for monitoring programmes (e.g. detection limits, tolerated uncertainties); g) frequencies of measurements; h) special cases; i) qualit
40、y assurance; and j) documentation, reporting, record-keeping. This International Standard does not address the monitoring of exposure to radon and its radioactive decay products; detailed descriptions of measuring methods and techniques; detailed procedures for in vivo measurements and in vitro anal
41、yses; interpretation of monitoring results in terms of doses; biokinetic data and mathematical models for converting measured activities into absorbed dose, equivalent dose and effective dose; or the investigation of the causes or implications of an exposure or intake. BS EN ISO 20553:2017ISO 20553:
42、2006(E) 2 ISO 2006 All rights reserved2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendment
43、s) applies. ISO 5725-1:1994, Accuracy (trueness and precision) of measurement methods and results Part 1: General principles and definitions ISO 12790-1:2001, Radiation protection Performance criteria for radiobioassay Part 1: General principles BIPM/IEC/IFCC/ISO/IUPAC/IUPAP/OIML, International voca
44、bulary of basic and general terms in metrology (VIM), 1993 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5725-1, ISO 12790-1 and International vocabulary of basic and general terms in metrology (VIM) and the following apply. 3.1 Absorption types 3.
45、1.1 type F F deposited materials that have high (fast) rates of absorption into body fluids from the respiratory tract 3.1.2 type M M deposited materials that have intermediate (moderate) rates of absorption into body fluids from the respiratory tract 3.1.1 type S S deposited materials that have low
46、 (slow) rates of absorption into body fluids from the respiratory tract 3.2 accuracy of measurement characteristics of an analysis or determination that ensure that both the bias and precision of the resulting quantity remains within specified limits 3.3 activity transition rate NOTE The activity is
47、 stated in becquerels (Bq). 3.4 activity median aerodynamic diameter AMAD value of aerodynamic diameter such that 50 % of the airborne activity in a specified aerosol is associated with particles smaller than the AMAD, and 50 % of the activity is associated with particles larger than the AMAD NOTE T
48、he aerodynamic diameter of an airborne particle is the diameter that a sphere of unit density would need to have in order to have the same terminal velocity when settling in air as the particle of interest. BS EN ISO 20553:2017ISO 20553:2006(E) ISO 2006 All rights reserved 33.5 clearance net effect
49、of the biological processes by which radionuclides are removed from the body or from a tissue, organ or region of the body NOTE The clearance rate is the rate at which this occurs. 3.6 contamination activity of radionuclides present on surfaces, or within solids, liquids or gases (including the human body), where the presence of such radioactive material is unintended or undesirable 3.7 dose ICRU Report 60:1998 3.7.1 annual dose committed effective dose resulting from all intakes occurring during a calendar year 3.7.2 comm
