1、BRITISH STANDARD BS EN 60846:2004 Radiation protection instrumentation Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma radiation The European Standard EN 60846:2004 has the status of a British Standard ICS 13.280 BS EN 60846:2004 This British Standard w
2、as published under the authority of the Standards Policy and Strategy Committee on 2 December 2004 BSI 2 December 2004 ISBN 0 580 44893 2 National foreword This British Standard is the official English language version of EN 60846:2004. It was derived by CENELEC from IEC 60846:2002. The CENELEC comm
3、on modifications have been implemented at the appropriate places in the text and indicated by tags . The UK participation in its preparation was entrusted to Technical Committee NCE/2, Radiation protection and measurement, which has the responsibility to: A list of organizations represented on this
4、committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using t
5、he “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from
6、legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK
7、. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 48, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date
8、 CommentsEUROPEAN STANDARD EN 60846 NORME EUROPENNE EUROPISCHE NORM November 2004 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussel
9、s 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60846:2004 E ICS 13.280 English version Radiation protection instrumentation Ambient and/or directional dose equivalent (rate) meters and/or monitors for beta, X and gamma rad
10、iation (IEC 60846:2002, modified) Instrumentation pour la radioprotection - Instruments pour la mesure et/ou la surveillance de lquivalent de dose (ou du dbit dquivalent de dose) ambiant et/ou directionnel pour les rayonnements bta, X et gamma (CEI 60846:2002, modifie) Strahlenschutz-Messgerte Umgeb
11、ungs- und Richtungs- quivalentdosis(leistungs)-Messgerte und -Monitore fr Beta, Rntgen- und Gammastrahlung (IEC 60846:2002, modifiziert) This European Standard was approved by CENELEC on 2004-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the con
12、ditions for giving 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 Central Secretariat or to any CENELEC member. This European Standard exists in
13、three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotech
14、nical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Foreword
15、 The text of the International Standard IEC 60846:2002, prepared by SC 45B, Radiation protection instrumentation, of IEC TC 45, Nuclear instrumentation, together with the common modifications prepared by the CENELEC BTTF 111-3, Instrumentation for ionizing radiation measurement and protection, was s
16、ubmitted to the formal vote and was approved by CENELEC on 2004-10-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2005-10-01 latest date by which the national standards c
17、onflicting with the EN have to be withdrawn (dow) 2007-10-01 Clauses, subclauses, tables and figures which are additional to those in IEC 60846 are prefixed “Z”. Annex ZA has been added by CENELEC. _ 3 NE 0648:60240 Endorsement notice The text of the International Standard IEC 60846:2002 was approve
18、d by CENELEC as a European Standard with agreed common modifications. MMOCOM NOFIDIACITONS T 3eimrlonygo dAd: Z.2.31 umixamd mosqe euivanelt tare (fod rosemtere)s d ehtose ras ,etpcefib deiy m ehtfunacaruter, obaev cihwt hd ehose rdaenisi g l ongnore htiwni r ehtequrimestne fo siht staradnd 4 Gearen
19、l arahccteritsics fo bmaitne d dnaitcerlanoi esod iuqevaletn (rta)e temesr .4.310 eDtele: “, (see also note i 7n .3)2”. .4.311 peRlcae referecnot e 3.2 by referecnot e .3.4a 5nd .34.7. 5 idaRtaion carahcteritstceriD sciie esod lanoiuqvaletn (rtae) temesr .5.14.1 saLt setnence: ercalpe “alamr arte” b
20、y “aalmr arte.”s .52.1 dAd a escond pargarhpa rdaegni: nA aiddoitlan test shlla be eprformew dith a ebat emitetr ni eht raegn E xamebwtnee 1k 00edna V 05k 0e.V 2.2.5 calpeRe firsrap trgaahp by: For teh ebta radiatoisn fo 58 o rKr 024 lT, 09 rS/ 09 na Yd 417 mPr eht ,esponse si msaerude ofr 0 naelg d
21、na ofr lgnaes of niedicnce of = 45 nitwo perpnedicular planse contianign the refercneed irectoit nhrough the referecnp eoinfo t thid erectionald ose qeuivaletn( rat)em eter. eDteleiht r dparagrhpa. Page2 EN60846:2004 CONTENTS 1 Scope and object7 2 Normative references8 3 Terminology9 3.1 General.9 3
22、.2 Definitions.9 3.3 Test nomenclature.11 3.4 Quantities and units.11 4 General characteristics of ambient and directional dose equivalent (rate) meters.13 4.1 General.13 4.1.1 Indication.13 4.1.2 Read-out.13 4.1.3 Dose equivalent (rate) meter labels and markings 13 4.1.4 Dose equivalent and dose eq
23、uivalent rate range.13 4.1.5 Effective range of measurement.13 4.1.6 Minimum range of measurement 14 4.1.7 Alarm levels.14 4.1.8 Additional indication.14 4.1.9 Failure operation of indication 14 4.1.10 Ease of decontamination15 4.2 Classification of the performance characteristics15 4.3 General test
24、 procedures 15 4.3.1 Nature of tests.15 4.3.2 Reference conditions and standard test conditions .15 4.3.3 Rated range of an influence quantity 15 4.3.4 Minimum rated range of influence quantity .15 4.3.5 Position of dose equivalent (rate) meter for purposes of tests.15 4.3.6 Low dose equivalent rate
25、s15 4.3.7 Statistical fluctuations 16 4.3.8 Production of reference radiation .16 4.3.9 Reference photon radiation 16 4.3.10 Reference beta radiation16 4.3.11 Determination of dose equivalent (rate) at point of test.16 5 Radiation characteristics Directional dose equivalent (rate) meters.17 5.1 Rela
26、tive intrinsic error17 5.1.1 Requirements17 5.1.2 Test method17 5.1.3 Requirements on the accuracy of alarm of dose equivalent (rate) monitors 19 5.1.4 Test method19 5.2 Variation of response with beta radiation energy and angle of incidence.19 5.2.1 Requirements19 5.2.2 Test method20 Page3 EN60846:
27、2004 5.3 Variation of response with photon radiation energy and angle of incidence .20 5.3.1 Requirements20 5.3.2 Test method20 5.4 Overload characteristics 21 5.4.1 Requirements21 5.4.2 Test method21 5.5 Response to neutron radiation .22 5.5.1 Requirements22 5.5.2 Test method22 5.6 Response to puls
28、ed ionizing radiation fields .22 5.6.1 Requirements22 5.6.2 Test method22 5.7 Statistical fluctuations22 5.7.1 Requirements22 5.7.2 Test method22 5.8 Response time 23 5.8.1 Requirements23 5.8.2 Test method23 5.9 Interrelation between response time and statistical fluctuations 24 6 Radiation characte
29、ristics ambient dose equivalent (rate) meters.24 6.1 Relative intrinsic error24 6.1.1 Requirements24 6.1.2 Test method25 6.1.3 Requirements on the accuracy of alarm to set value.25 6.1.4 Test method25 6.2 Variation of response with photon radiation energy and angle of incidence .25 6.2.1 Requirement
30、s25 6.2.2 Test method26 6.3 Overload characteristics 26 6.4 Response to neutron radiation .26 6.5 Response to pulsed ionizing radiation fields .26 6.6 Statistical fluctuations26 6.7 Response time 26 6.8 Interrelation between response time and statistical fluctuations 26 7 Electrical characteristics
31、of directional and ambient dose equivalent (rate) meters.27 7.1 Stability of zero indication with time27 7.1.1 Requirements27 7.1.2 Test method27 7.2 Stability of zero indication with variation of temperature27 7.2.1 Requirements27 7.2.2 Test method28 7.3 Warm-up time28 7.3.1 Requirements28 7.3.2 Te
32、st method28 7.4 Power supplies battery operation 28 7.4.1 General.28 7.4.2 Requirements primary batteries (non-rechargeable) 29 7.4.3 Requirements secondary batteries (rechargeable).29 7.4.4 Test method29 Page4 EN60846:2004 7.5 Power supplies mains operation30 7.5.1 Requirements30 7.5.2 Test method3
33、0 8 Mechanical characteristics of directional and ambient dose equivalent (rate) meters31 8.1 Mechanical shock during operation 31 8.2 Orientation of dose equivalent (rate) meter (geotropism) 31 8.2.1 Requirements31 8.2.2 Test method31 9 Environmental characteristics, performance requirements and te
34、sts31 9.1 Ambient temperature influence 31 9.1.1 Requirements31 9.1.2 Test method32 9.2 Relative humidity .32 9.2.1 Requirements32 9.2.2 Test method32 9.3 Atmospheric pressure32 9.3.1 Requirements32 9.3.2 Test method33 9.4 Sealing against moisture33 9.5 Storage and transport 33 9.6 Electromagnetic c
35、ompatibility.33 9.6.1 General.33 9.6.2 Emission of electromagnetic radiation 33 9.6.3 Electrostatic discharge.33 9.6.4 Radiated electromagnetic fields .34 9.6.5 Conducted disturbances induced by fast transients or bursts34 9.6.6 Conducted disturbances induced by surges35 9.6.7 Conducted disturbances
36、 induced by radio-frequencies .36 9.6.8 50 Hz/60 Hz magnetic field .36 9.6.9 Voltage dips and short interruptions .36 9.7 Vibration and mechanical shock.36 9.7.1 Requirements36 9.7.2 Vibration37 9.7.3 Mechanical shock 37 10 Summary of characteristics.37 11 Documentation.37 11.1 Certificate37 11.2 Op
37、eration and maintenance manual.38 Annex A (normative) Statistical fluctuations 44 Annex ZA (normative) Normative references to international publications with their corresponding European publications 46 Bibliography48 Table 1 Reference conditions and standard test conditions .38 Table 2 Limits of t
38、he coefficient of variation and of the relative intrinsic error 39 Table 3 Radiation characteristics of directional dose equivalent (rate) meters .39 Table 4 Radiation characteristics of ambient dose equivalent (rate) meters.40 Page5 EN60846:2004 Table 5 Electrical, mechanical and environmental char
39、acteristics of directional and ambient dose equivalent (rate) meters.41 Table 6 Maximum values of additional indications due to electromagnetic disturbances 43 Table 7 Mechanical performance under test conditions .43 Table 8 Table deleted Table 9 Table deleted Table A.1 Number of instrument readings
40、 required to detect true differences (95 % confidence level) between two sets of instrument readings on the same instrument .45 Page6 EN60846:2004 RADIATION PROTECTION INSTRUMENTATION AMBIENT AND/OR DIRECTIONAL DOSE EQUIVALENT (RATE) METERS AND/OR MONITORS FOR BETA, X AND GAMMA RADIATION 1 Scope and
41、 object This International Standard applies to dose equivalent (rate) meters and/or monitors for the measurement of ambient dose equivalent (rate) and/or directional dose equivalent (rate) from external beta, X and gamma radiation, as recommended in ICRU Report 47 1 . NOTE 1 If both quantities, ambi
42、ent dose equivalent and directional dose equivalent are meant, the term dose equivalent may be used as an abbreviation. It applies directly to dose equivalent (rate) meters intended for the determination of the dose equivalent or dose equivalent rate from external beta and/or X and gamma radiation o
43、f energies up to 10 MeV for radiation protection purposes. In this document, the expression “dose equivalent (rate)“ is used when the provisions apply to both the measurement of dose equivalent and the measurement of dose equivalent rate. NOTE 2 It does not apply to medical radiology which is within
44、 the scope of technical committee 62, where the conditions of radiation exposure may be extremely inhomogeneous, but precisely known. NOTE 3 It does not apply directly to instruments intended to be worn by an individual for the purpose of estimating the radiation dose received by that individual. Th
45、e object of this standard is to specify the design requirements and the performance characteristics of dose equivalent (rate) meters intended for the determination of ambient dose equivalent (rate) and directional dose equivalent (rate) as defined in ICRU Report 47 1 . Accordingly, this standard spe
46、cifies: a) general characteristics, the functions and performance characteristics of dose equivalent (rate) meters; b) the methods of test to be used to determine compliance with the requirements of this standard. _ 1ICRU Report 47: 1992, Measurements of Dose Equivalents from External Photon and Ele
47、ctron Radiations, International Commission on Radiation Units and Measurements, 7910 Woodmont Avenue, Bethesda, Maryland 20814-3095, U.S.A. Page7 EN60846:2004 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only
48、the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60038:1983, IEC standard voltages Amendment 1 (1994) Amendment 2 (1997) IEC 60050-151: 2001, International Electrotechnical Vocabulary (IEV) Part 151: Electrical a
49、nd magnetic devices IEC 60050-393:1996, International Electrotechnical Vocabulary (IEV) Chapter 393: Nuclear instrumentation: Physical phenomena and basic concepts IEC 60050-394:1995, International Electrotechnical Vocabulary (IEV) Chapter 394: Nuclear instrumentation: Instruments IEC 60068-2-27:1987, Environmental testing Part 2: Tests. Test Ea and guidance: Shock IEC 60086 (all parts): Primary
