1、BSI Standards PublicationRadiation protection instrumentation Radon and radon decay product measuring instrumentsPart 3: Specific requirements for radon decay product measuring instrumentsBS IEC 61577-3:2012BS EN 61577-3:2014BS EN 61577-3:2014 BRITISH STANDARDNational forewordThis British Standard i
2、s the UK implementation of EN 61577-3:2014. It is derived from IEC 61577-3:2011. It supersedes BS IEC 61577-3:2012, which is withdrawn.The CENELEC common modifications have been implemented at the appropriate places in the text. The start and finish of each common modification is indicated in the te
3、xt by tags .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 purport to include all the necessary provis
4、ions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 83101 0ICS 13.280; 17.240Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was pub
5、lished under the authority of the Standards Policy and Strategy Committee on 31 March 2012.Amendments/corrigenda issued since publicationDate Text affected31 January 2015 This corrigendum renumbers BS IEC 61577-3:2012 as BS EN 61577-3:2014.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61577-3
6、 December 2014 ICS 13.280 English Version Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 3: Specific requirements for radon decay product measuring instruments (IEC 61577-3:2011 , modified) Instrumentation pour la radioprotection - Instruments de me
7、sure du radon et des descendants du radon - Partie 3: Exigences spcifiques concernant les instruments de mesure des descendants du radon (CEI 61577-3:2011 , modifie) Strahlenschutz-Messgerte - Gerte fr die Messung von Radon und Radon-Folgeprodukten - Teil 3: Besondere Anforderungen an Messgerte fr R
8、adonfolgeprodukte (IEC 61577-3:2011 , modifiziert) This European Standard was approved by CENELEC on 2014-11-17. CENELEC 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 an
9、y 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 CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other la
10、nguage made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, t
11、he Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the Uni
12、ted Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploitation in any form and by any means
13、reserved worldwide for CENELEC Members. Ref. No. EN 61577-3:2014 E EN 61577-3:2014 - 2 - Foreword This document (EN 61577-3:2014) consists of the text of IEC 61577-3:2011 prepared by IEC/SC 45B “Radiation protection instrumentation“ of IEC/TC 45 “Nuclear instrumentation“, together with the common mo
14、difications prepared by CLC/TC 45B “Radiation protection instrumentation“. The following dates are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-11-17 latest date by which the national s
15、tandards conflicting with this document have to be withdrawn (dow) 2017-11-17 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. 2 BS EN
16、61577-3:2014EN 61577-3:2014EN 61577-3:2014 - 4 - Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
17、 For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2
18、Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60050-394 - International Electrotechnical Vocabulary (IEV) - Part 394: Nuclear instrumentation - Instruments, systems, equipment and
19、detectors - - IEC 60068-2-27 - Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock EN 60068-2-27 - IEC 61000-6-4 - Electromagnetic compatibility (EMC) - Part 6-4: Generic standards - Emission standard for industrial environments EN 61000-6-4 - IEC 61140 - Protection against electr
20、ic shock - Common aspects for installation and equipment EN 61140 - IEC 61187 - Electrical and electronic measuring equipment - Documentation EN 61187 - IEC 61577-1 - Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 1: General principles - - IEC 61577
21、-4 - Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 4: Equipment for the production of reference atmospheres containing radon isotopes and their decay products (STAR) EN 61577-4 - ISO/IEC Guide 98-3 2008 Uncertainty of measurement - Part 3: Guide to
22、 the expression of uncertainty in measurement (GUM:1995) - - 3 BS EN 61577-3:2014EN 61577-3:2014 2 61577-3 IEC:2011 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope . 8 2 Normative references . 8 3 Terms and definitions . 8 4 General design considerations . 10 4.1 Design considerations for the measure
23、ments 10 4.1.1 Deposition of radon decay products on surfaces 10 4.1.2 Airflow system . 11 4.2 Design considerations for handling and maintenance 11 4.2.1 Portability 11 4.2.2 Application under heavy environmental conditions . 11 4.2.3 Automatic operation . 11 4.2.4 Reliability 11 4.2.5 Capability f
24、or operational testing . 12 4.2.6 Adjustment and maintenance facilities . 12 4.2.7 Acoustic noise level . 12 4.2.8 Electromagnetic interference . 12 4.2.9 Storage . 12 5 Technical components 12 5.1 Sampling assembly . 12 5.2 Radiation detection assembly 13 5.3 Data processing and recording 13 5.4 Me
25、asurement display 13 5.5 Power supply . 14 6 Test conditions . 14 6.1 General . 14 6.2 Standard test conditions 15 6.3 Execution of tests 15 6.4 Test sources . 15 6.4.1 Solid sources . 15 6.4.2 Reference atmospheres . 15 7 Requirements and tests concerning radiation detection performance 16 7.1 Refe
26、rence response to a test source . 16 7.1.1 Requirements 16 7.1.2 Test method 16 7.2 Cross interference to other radon isotopes 16 7.2.1 Requirements 16 7.2.2 Test method 16 7.3 Linearity of indication 17 7.3.1 Requirements 17 7.3.2 Test method 17 7.4 Instrument statistical fluctuation 17 7.4.1 Requi
27、rements 17 7.4.2 Test method 17 7.5 Response time 18 BS IEC 61577-3:2012 2 61577-3 IEC:2011 CONTENTS FOREWORD . 5INTRODUCTION . 71 Scope .2 Nor ative references3 Terms and definitions . 84 General design considerations .4.1 Design considerations for the measurements 10 4.1.1 Deposition of radon deca
28、y products on surfaces 10 4.1.2 Airflow system . 11 4.2 Design considerations for handling and maintenance 11 4.2.1 Portability 11 4.2.2 Application under heavy environmental conditions . 11 4.2.3 Automatic operation . 11 4.2.4 Reliability 11 4.2.5 Capability for operational testing . 12 4.2.6 Adjus
29、tment and maintenance facilities . 12 4.2.7 Acoustic noise level . 12 4.2.8 Electromagnetic interference . 12 4.2.9 Storage . 12 5 Technical components 5.1 Sampling assembly . 12 5.2 Radiation detection assembly 13 5.3 Data processing and recording 13 5.4 Measurement display 13 5.5 Power supply . 14
30、 6 Test conditions .6.1 General . 14 6.2 Standard test conditions 15 6.3 Execution of tests 15 6.4 Test sources . 15 6.4.1 Solid sources . 15 6.4.2 Reference atmospheres . 15 7 Requirements and tests concerning radiation detection performance 7.1 Reference response to a test source . 16 7.1.1 Requir
31、ements 16 7.1.2 Test method 16 7.2 Cross interference to other radon isotopes 16 7.2.1 Requirements 16 7.2.2 Test method 16 7.3 Linearity of indication 17 7.3.1 Requirements 17 7.3.2 Test method 17 7.4 Instrument statistical fluctuation 17 7.4.1 Requirements 17 7.4.2 Test method 17 7.5 Response time
32、 18 BS IEC 61577-3:2012BS EN 61577-3:2014IEC 61577-3:2011 4 2 61577-3 IEC:2011 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope . 8 2 Normative references . 8 3 Terms and definitions . 8 4 General design considerations . 10 4.1 Design considerations for the measurements 10 4.1.1 Deposition of radon de
33、cay products on surfaces 10 4.1.2 Airflow system . 11 4.2 Design considerations for handling and maintenance 11 4.2.1 Portability 11 4.2.2 Application under heavy environmental conditions . 11 4.2.3 Automatic operation . 11 4.2.4 Reliability 11 4.2.5 Capability for operational testing . 12 4.2.6 Adj
34、ustment and maintenance facilities . 12 4.2.7 Acoustic noise level . 12 4.2.8 Electromagnetic interference . 12 4.2.9 Storage . 12 5 Technical components 12 5.1 Sampling assembly . 12 5.2 Radiation detection assembly 13 5.3 Data processing and recording 13 5.4 Measurement display 13 5.5 Power supply
35、 . 14 6 Test conditions . 14 6.1 General . 14 6.2 Standard test conditions 15 6.3 Execution of tests 15 6.4 Test sources . 15 6.4.1 Solid sources . 15 6.4.2 Reference atmospheres . 15 7 Requirements and tests concerning radiation detection performance 16 7.1 Reference response to a test source . 16
36、7.1.1 Requirements 16 7.1.2 Test method 16 7.2 Cross interference to other radon isotopes 16 7.2.1 Requirements 16 7.2.2 Test method 16 7.3 Linearity of indication 17 7.3.1 Requirements 17 7.3.2 Test method 17 7.4 Instrument statistical fluctuation 17 7.4.1 Requirements 17 7.4.2 Test method 17 7.5 R
37、esponse time 18 BS IEC 61577-3:201261577-3 IEC:2011 3 7.5.1 Requirements 18 7.5.2 Test method 18 7.6 Signal accumulation 18 7.6.1 Requirements 18 7.6.2 Test method 19 8 Requirements and tests concerning air circuit performance 19 8.1 General . 19 8.2 Flow-rate stability 19 8.2.1 Requirements 19 8.2.
38、2 Test method 19 8.3 Accuracy of the flow-rate measurement . 19 8.3.1 Requirements 19 8.3.2 Test method 19 8.4 Effect of filter pressure drop 20 8.4.1 Requirements 20 8.4.2 Test method 20 8.5 Low sampling flow-rate indication 20 8.5.1 Requirements 20 8.5.2 Test method 20 9 Requirements and tests con
39、cerning environmental performance . 20 9.1 Response to ambient gamma radiation 20 9.1.1 Requirements 20 9.1.2 Test method 21 9.2 Number concentration of aerosols . 21 9.2.1 Requirements 21 9.2.2 Test method 21 9.3 Ambient temperature . 21 9.3.1 Requirements 21 9.3.2 Test method 21 9.4 Relative humid
40、ity and condensed moisture 21 9.4.1 Requirements 21 9.4.2 Test method 22 9.5 Atmospheric pressure 22 10 Requirements and tests concerning electrical performance 22 10.1 Warm-up time 22 10.1.1 Requirements 22 10.1.2 Test method 22 10.2 Power supply variations. 22 10.2.1 Requirements 22 10.2.2 Test me
41、thod 23 10.3 Battery test 23 10.3.1 Requirements 23 10.3.2 Test method 23 11 Requirements and tests concerning mechanical performance . 23 11.1 Requirements 23 11.2 Test method 23 12 Operation and maintenance manual . 24 13 Type test report and certificate . 24 BS IEC 61577-3:2012 2 61577-3 IEC:2011
42、 CONTENTS FOREWORD . 5INTRODUCTION . 71 Scope .2 Nor ative references3 Terms and definitions . 84 General design considerations .4.1 Design considerations for the measurements 10 4.1.1 Deposition of radon decay products on surfaces 10 4.1.2 Airflow system . 11 4.2 Design considerations for handling
43、and maintenance 11 4.2.1 Portability 11 4.2.2 Application under heavy environmental conditions . 11 4.2.3 Automatic operation . 11 4.2.4 Reliability 11 4.2.5 Capability for operational testing . 12 4.2.6 Adjustment and maintenance facilities . 12 4.2.7 Acoustic noise level . 12 4.2.8 Electromagnetic
44、 interference . 12 4.2.9 Storage . 12 5 Technical components 5.1 Sampling assembly . 12 5.2 Radiation detection assembly 13 5.3 Data processing and recording 13 5.4 Measurement display 13 5.5 Power supply . 14 6 Test conditions .6.1 General . 14 6.2 Standard test conditions 15 6.3 Execution of tests
45、 15 6.4 Test sources . 15 6.4.1 Solid sources . 15 6.4.2 Reference atmospheres . 15 7 Requirements and tests concerning radiation detection performance 7.1 Reference response to a test source . 16 7.1.1 Requirements 16 7.1.2 Test method 16 7.2 Cross interference to other radon isotopes 16 7.2.1 Requ
46、irements 16 7.2.2 Test method 16 7.3 Linearity of indication 17 7.3.1 Requirements 17 7.3.2 Test method 17 7.4 Instrument statistical fluctuation 17 7.4.1 Requirements 17 7.4.2 Test method 17 7.5 Response time 18 BS IEC 61577-3:2012BS EN 61577-3:2014IEC 61577-3:2011 5 4 61577-3 IEC:2011 Table 1 Refe
47、rence conditions and standard test conditions (unless otherwise indicated by the manufacturer) 25 Table 2 Tests of the radiation detection performance . 26 Table 3 Tests performed with variation of influence quantities 26 Table 4 Tests of the air circuit 26 BS IEC 61577-3:2012BS EN 61577-3:2014IEC 6
48、1577-3:2011 6 4 61577-3 IEC:2011 Table 1 Reference conditions and standard test conditions (unless otherwise indicated by the manufacturer) 25 Table 2 Tests of the radiation detection performance . 26 Table 3 Tests performed with variation of influence quantities 26 Table 4 Tests of the air circuit
49、26 BS IEC 61577-3:201261577-3 IEC:2011 7 INTRODUCTION Radon is a radioactive trace gas produced by the decay of 226Ra, 223Ra and 224Ra, respectively decay products of 238U, 235U and 232Th which are present in the earths crust. By decay, radon isotopes (i.e., 222Rn, 219Rn, 220Rn) produce three decay chains, each ending in a stable lead isotope. The radon isotope 220Rn generally is called thoron1. NOTE In normal conditions, due to the very short half-life of 219Rn, its activity and
