EN ISO 2919-2014 en Radiological protection - Sealed radioactive sources - General requirements and classification《辐射防护 密封放射源 一般要求和分类(ISO 2919 2012)》.pdf

1、BSI Standards PublicationRadiological protection Sealed radioactive sources General requirements and classificationBS ISO 2919:2012BS EN ISO 2919:2014BS EN ISO 2919:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 2919:2014. It is identical to ISO 2919:2

2、012. It supersedes BS ISO 2919:2012 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee NCE/2, Radiation protection and measurement.A list of organizations represented on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

3、purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014. Published by BSI Standards Limited 2014ISBN 978 0 580 86059 1ICS 13.280Compliance with a British Standard cannot confer immunity from legal obliga

4、tions.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2012.Amendments/corrigenda issued since publicationDate Text affected30 November 2014 This corrigendum renumbers BS ISO 2919:2012 as BS EN ISO 2919:2014EUROPEAN STANDARD NORME

5、 EUROPENNE EUROPISCHE NORM EN ISO 2919 November 2014 ICS 13.280 English Version Radiological protection - Sealed radioactive sources - General requirements and classification (ISO 2919:2012) Radioprotection - Sources radioactives scelles - Exigences gnrales et classification (ISO 2919:2012) Strahlen

6、schutz - Umschlossene radioaktive Stoffe - Allgemeine Anforderungen und Klassifikation (ISO 2919:2012) This European Standard was approved by CEN on 25 October 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Stan

7、dard 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 (Englis

8、h, 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, Bu

9、lgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

10、Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Member

11、s. Ref. No. EN ISO 2919:2014 EEN ISO 2919:2014 (E) 3 Foreword The text of ISO 2919:2012 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 EN ISO

12、 2919:2014 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 the la

13、test by May 2015, and conflicting national standards shall be withdrawn at the latest by May 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such pa

14、tent 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

15、, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 2919:2012 has been approved by CEN as E

16、N ISO 2919:2014 without any modification. BS EN ISO 2919:2014 (E)ISO 2919:2012(E) ISO 2012 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope 12 Normative references . 13 Terms and definitions . 14 Designation and classification 34.1 Designation . 34.2 Classification 34.3 Determina

17、tion of classification 45 Activity level requirements . 46 Performance requirements . 56.1 General requirements . 56.2 Requirements for typical usage 56.3 Procedure for establishing classification and performance requirements . 66.4 Recommended working life (RWL) . 67 Test methods 77.1 General . 77.

18、2 Temperature test 87.3 External pressure test 97.4 Impact test . 97.5 Vibration test 97.6 Puncture test 107.7 Bending tests .108 Source marking 129 Source certificate 1210 Quality assurance .13Annex A (informative) Classification of radionuclides .14Annex B (informative) Example of certificate for

19、sealed radioactive source .16Annex C (informative) General information on adverse environmental conditions .17Annex D (informative) Additional tests .18Bibliography .19BS ISO 2919:2012BS EN ISO 2919:2014ISO 2919:2012(E)ISO 2919:2012(E)ForewordISO (the International Organization for Standardization)

20、is a worldwide federation of national standards 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 repres

21、ented on that committee. International organizations, 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 d

22、rafted in accordance with the rules given in the 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 S

23、tandard 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 rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 2919 was prepared b

24、y Technical Committee ISO/TC 85, Nuclear energy, nuclear technologies, and radiological protection, Subcommittee SC 2, Radiological protection.This third edition cancels and replaces the second edition (ISO 2919:1999), which has been technically revised.iv ISO 2012 All rights reservedBS ISO 2919:201

25、2BS EN ISO 2919:2014ISO 2919:2012(E)ISO 2919:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Eac

26、h member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the Internation

27、al Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards

28、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 p

29、atent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 2919 was prepared by Technical Committee ISO/TC 85, Nuclear energy, nuclear technologies, and radiological protection, Subcommittee SC 2, Radiological protection.This third edition cancels and replaces

30、the second edition (ISO 2919:1999), which has been technically revised.iv ISO 2012 All rights reservedBS ISO 2919:2012ISO 2919:2012(E)IntroductionSafety is the prime consideration when establishing standards about the use of sealed radioactive sources. Sealed-source users have established an enviabl

31、e record of safe usage as a result of careful scrutiny of the conditions of application of the sealed radioactive source by the regulating authority, the supplier and the user. However, as the application of sealed radioactive sources becomes more diversified and as regulating agencies become more n

32、umerous, an International Standard is needed to specify the characteristics of a sealed radioactive source and the essential performance and safety testing methods for a particular application and, thus, maintain the record of safe usage. ISO 2012 All rights reserved vBS ISO 2919:2012BS EN ISO 2919:

33、2014ISO 2919:2012(E)Radiological protection Sealed radioactive sources General requirements and classification1 ScopeThis International Standard establishes a classification system for sealed radioactive sources that is based on test performance and specifies general requirements, performance tests,

34、 production tests, marking and certification. It provides a set of tests by which manufacturers of sealed radioactive sources can evaluate the safety of their products in use and users of such sources can select types which are suitable for the required application, especially where protection again

35、st the release of radioactive material, with consequent exposure to ionizing radiation, is concerned. This International Standard can also serve as guidance to regulating authorities.The tests fall into several groups, including, for example, exposure to abnormally high and low temperatures and a va

36、riety of mechanical tests. Each test can be applied in several degrees of severity. The criterion of pass or fail depends on leakage of the contents of the sealed radioactive source.NOTE Leakage test methods are given in ISO 9978.Although this International Standard classifies sealed sources by a va

37、riety of tests, it does not imply that a sealed source will maintain its integrity if used continuously at the rated classification. For example, a sealed source tested for 1 h at 600 C might, or might not, maintain its integrity if used continuously at 600 C.A list of the main typical applications

38、of sealed radioactive sources, with a suggested test schedule for each application, is given in Table 3. The tests constitute minimum requirements corresponding to the applications in the broadest sense. Factors to be considered for applications in especially severe conditions are listed in 4.2.This

39、 International Standard makes no attempt to classify the design of sources, their method of construction or their calibration in terms of the radiation emitted. Radioactive materials inside a nuclear reactor, including sealed sources and fuel elements, are not covered by this International Standard.

40、2 Normative referencesThe 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 amendments) applies.ISO 361, Basic ionizing radi

41、ation symbolISO 9978:1992, Radiation protection Sealed radioactive sources Leakage test methods3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1capsuleprotective envelope used to prevent leakage of radioactive material3.2deviceany piece of equipm

42、ent designated to utilize one or several sealed sourcesINTERNATIONAL STANDARD ISO 2919:2012(E) ISO 2012 All rights reserved 1BS ISO 2919:2012BS EN ISO 2919:2014Radiological protection Sealed radioactive sources General requirements and classification1 ScopeThis International Standard establishes a c

43、lassification system for sealed radioactive sources that is based on test performance and specifies general requirements, performance tests, production tests, marking and certification. It provides a set of tests by which manufacturers of sealed radioactive sources can evaluate the safety of their p

44、roducts in use and users of such sources can select types which are suitable for the required application, especially where protection against the release of radioactive material, with consequent exposure to ionizing radiation, is concerned. This International Standard can also serve as guidance to

45、regulating authorities.The tests fall into several groups, including, for example, exposure to abnormally high and low temperatures and a variety of mechanical tests. Each test can be applied in several degrees of severity. The criterion of pass or fail depends on leakage of the contents of the seal

46、ed radioactive source.NOTE Leakage test methods are given in ISO 9978.Although this International Standard classifies sealed sources by a variety of tests, it does not imply that a sealed source will maintain its integrity if used continuously at the rated classification. For example, a sealed sourc

47、e tested for 1 h at 600 C might, or might not, maintain its integrity if used continuously at 600 C.A list of the main typical applications of sealed radioactive sources, with a suggested test schedule for each application, is given in Table 3. The tests constitute minimum requirements corresponding

48、 to the applications in the broadest sense. Factors to be considered for applications in especially severe conditions are listed in 4.2.This International Standard makes no attempt to classify the design of sources, their method of construction or their calibration in terms of the radiation emitted.

49、 Radioactive materials inside a nuclear reactor, including sealed sources and fuel elements, are not covered by this International Standard.2 Normative referencesThe 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 amendments) applies.ISO 361, Basic ionizing radiation symbolISO 9978:1992, Radiation protection Sealed radioactive sources Leakage test methods3 Terms and